FOR THE LAST 40 YEARS, VULKAN LOKRING HAS DEVELOPED, MANUFACTURED AND MARKETED MECHANICAL TUBE JOINING SYSTEMS FOR REFRIGERANT LINES.
CUSTOMERVALUE
QUAL
ITY
APPROVED SOLUTION
GLOBAL
KNOW–HOW
COST ADVANTAGE
VULKAN Lokring is a company that belongs to the VULKAN Group,
which is a medium-sized family-owned enterprise for technical
industrial applications with its head office in Germany. As a
developer of the LOKRING technology, VULKAN Lokring is a market
leader in the field of braze-free and non-detachable tube joints.
Developed originally for the most extreme conditions encountered
in manned space travel, the LOKRING tube joining technique has
undergone constant advanced development for applications in
commercial refrigeration and air conditioning technology.
have been successfully used in the industrial volume production
of refrigerators, freezers and air conditioning systems.
APPROVED SOLUTION
2,000,000,000 LOKRING® CONNECTIONS
are produced in the 5 international manufacturing facilities of
VULKAN Lokring on modern multi-spindle automatic lathe
machines and shipped to 83 destination countries.
GLOBAL
500,000 LOKRINGS PER DAY
optimise their international competitive edge by using LOKRING
tube connections as cost and quality benefit compared to
brazed ones.
COST ADVANTAGE
7,000 CUSTOMERS
of LOKRING based on automated industrial image
processing as part of the certified VULKAN Lokring quality
management system.
QUALITY
100% QUALITY INSPECTION
are used at present by customers in order to optimally join tubes
made of different materials and combinations of diameters.
KNOW–HOW
650 UNIQUE TYPES OF LOKRING
Therefore, VULKAN Lokring nowadays provides customised
solutions for tube connections in the fields of the manufactur-
ing, installation and servicing of refrigeration and air condition-
ing technology.
All from a single source – from separate development for
customers to their own production range and right up to sales
& service by local subsidiaries or authorised business partners.
CONTENTS
VULKAN LOKRING
02 LOKRING®
06 ASSEMBLY TOOLS
14 LOKRING® BRASS CONNECTORS
16 STARTER KIT
18 STABILISATION INSERTS
20 LOKPREP
22 STRAIGHT CONNECTORS
24 STRAIGHT REDUCING CONNECTORS
26 FLARE-FITTINGS
28 ELBOWS
30 BRANCHES
34 T-CONNECTORS
34 REDUCING ADAPTORS
36 SPECIAL CONNECTORS
38 LOKRING® ALUMINIUM CONNECTORS
40 STABILISATION INSERTS
42 LOKPREP
44 STRAIGHT CONNECTORS
46 STRAIGHT REDUCING CONNECTORS
47 FLARE-FITTINGS
48 ACCESSORIES
52 LOKRING® ASSEMBLY
56 ONLINE-SERVICE
57 IMPRINT
VULKAN LOKRING. LOKRING tube connections and tools are made by VULKAN Lokring in-house: Development,
construction, manufacture as well as sales & service. For the customers, this means „all from a single source“ and
directly from the manufacturer: customised planning and consultancy, supervision at the time of introduction, and
support and service locally wherever required.
PRODUCT AND MANAGEMENT CERTIFICATION. TÜV and UL product
certification. ISO 9001 certification of the quality management system.
ISO 14001 certification of the environment management system.
AEO certification. Leak-proof tests. Expert survey reports.
PRODUCTION. Approximately 500,000 LOKRINGs per day are
produced on modern multi-spindle automatic machines in Germany,
Brazil, India, USA and China. Therefore, for customers, LOKRING is
the optimal partner when it comes to safety, flexibility and logistics.
RESEARCH AND DEVELOPMENT. VULKAN Lokring is the inventor
and developer of the patented LOKRING tube joint. For the last 40
years, experienced engineers have built new solutions for
customers‘ applications in the development centre in Germany.
CLIMATE PROTECTION. Since our tube connections are hermetically
sealed, we can ensure that no climate damaging refrigerants leak into the
environment. Furthermore, LOKRING makes the use of environmental
friendly but flammable refrigerants (HC) safer and allows the use of CO2
(R744). Thus, by using LOKRING tube connections you make a
contribution to the active protection of the environment.
GERMANPRECISION ENGINEERING
QUALITY. The German standard of quality management is the
benchmark for the international production of LOKRING. The certified
quality management and the deployment of highly advanced industrial
image processing systems facilitate 100% quality control.
SERVICE. Whether you are seeking planning and consultancy for
optimising the refrigeration cycle system by using braze-free tube
connections, support with the introduction of the LOKRING technology
in production or after-sales service – everything is available locally with
competent VULKAN Lokring technicians.
VULK
AN LO
KRIN
G CO
MPA
CT
CUSTOMER REFERENCES. A small selection from more than 7,000 satisfied customers:
THE BEST CONNECTION – WORLDWIDE. Operating with five international production locations, with 17 subsidiary companies and an
additional 13 agencies worldwide, we ensure that VULKAN Lokring expertise is available on site throughout the world. This means that
our customers have rapid access to our specialists and that the necessary solutions are quickly available exactly where they are needed.
VULKAN production facility Subsidiary
THE BENEFITS
Approx. 40 % time saving
Absolutely clean, efficient and reliable
Installation work during business hours and public access
Installation work in situations where there is a fire hazard
Light hand assembly tool without energy exertion
Installation can also be carried out by non-skilled workers
No nitrogen as purge gas
No braze-related quality problems
AREAS OF APPLICATION
Air conditioning systems (split, multi-split, VRV, HVAC)
Commercial product refrigeration
Heat pumps
Solar thermal energy
Geothermal energy
02 | LOKRING
LOKRING tube connections can be made without a great deal of force being
necessary, using simple hand assembly tools. LOKRING ensures an absolutely
clean, permanent and purely mechanical tube connection with long-term hermetic
air-tightness. This is confirmed by the special TÜV test and approval. All this
makes LOKRING tube connections one of the most economical and reliable
methods of connecting refrigerant tubes.
THE PATENTED LOKRING® TUBE CONNECTION SYSTEM PROVIDES AN INNOVATIVE SYSTEM OF BRAZE-FREE TUBE CONNECTIONS FOR EVERY INSTALLATION SITUATION IN REFRIGERATION AND AIR-CONDITIONING TECHNOLOGY.
LOKRING®
CO
MPLY W
ITH THE APPLICABLE REQUIREMEN
TS
LOKRING TUBE CONNECTIONS
Type-examination tested
LOKRING TUBE CONNECTIONS
R134
a – R290 – R404A – R407C – R410A –
R60
0a
ONE SYSTEM – ENDLESS POSSIBILITIES
Straight connections
Straight reducing connections
Flare-fittings
Elbows
Branches
T-connections
Special connections
LOKRING | 03
THE BEST CONNECTION
04 | LOKRING
TECHNICAL SPECIFICATIONS MATERIAL COMBINATIONS**
04 | LOKRING
LOKRING® BRASS CONNECTORS
Reference standards:EN 378-2 and ISO 14903
Max. operating pressure:75 bar (1088 psi)
Admissible refrigerants: Suitable for all HFCs and mixtures, all HCs, R32 and CO
2*.
Not suitable for NH3.
Temperature range: -50°C up to 150°C (-58°F up to 302°F)
* Up to the max. operating pressure specified for each connector. ** Other material combinations on request.
THE TYPICAL LOKRING union joint consists of two LOKRINGs and one tubular joint for the acceptance of the two tube ends. Thanks to the conical inner contour of the LOKRING and the special outer contour of
the joint, the diameter of the connection is reduced during assembly to such an extent that the joint and the tube create a hermetically sealed metal-to-metal connection. The lifetime gas-tightness of the fitted
Tube diameter range:6 to 41.3 mm (1/4" to 1 5/8")
Minimum tube wall thickness:0.7 mm
Approvals:TÜV, UL (File SA12004)
BrassCopper Steel
LOKPREP
LOKRING®
JOINT
STABILISATION INSERT
LOKRING | 05LOKRING | 05
TECHNICAL SPECIFICATIONS
Reference standards:EN 378-2 and ISO 14903
Max. operating pressure:50 bar (725 psi)
Admissible refrigerants: Suitable for all HCs, HFCs and mixtures. Not suitable for NH
3.
Temperature range: -50°C up to 150°C (-58°F up to 302°F)
LOKRING® ALUMINIUM CONNECTORS
MATERIAL COMBINATIONS***
*** When connecting aluminium tubes to copper tubes, use a heat shrink sleeve to protect the connection against corrosion.
Brass CopperAluminium
Tube diameter range:6.35 to 22.23 mm (1/4" to 7/8")
Minimum tube wall thickness:0.8 mm
Approvals:TÜV, UL (File SA12004)
connection is ensured by the state of permanent elastic pre-tension, which is produced by the radial forces of the LOKRINGs acting in the opposite direction to the tube-joint connection.
LOKPREP
LOKRING®
JOINT
STABILISATION INSERT
LOKPRESS
08 | ASSEMBLY TOOLS
LOKPRESS
The compact assembly tool ensures the safe and fast installation of LOKRING tube connections. The
steplessly rotatable assembly head and low weight guarantees one-handed operation and assembly in
awkward installation positions. Modern high-performance rechargeable batteries ensure lots of connections
can be made without interruption. When the diameter of the tubes to be connected changes, the assembly
jaws are simply turned round or replaced in seconds.
ROTATING HEAD CAN BE SWIVELLED THROUGH 360° IDEAL FOR AREAS THAT ARE DIFFICULT TO ACCESS.
CORDLESS ASSEMBLY TOOL
Special hydraulic valve for quick and safe assembling of LOKRING connections type 50.
Diameters: 6 to 41.3 mm (1/4" to 1 5/8")
Lightweight for single-hand operation.
Rotatable mounting head makes working in any situation easy.
Delivered in a robust plastic case.
Made in Germany!
Article no. Article name
L14003952 LOKTOOL LOKPRESS
Technical data
Dimensions without rechargeable battery (H x W x L): 330 x 69 x 219 mm
Operating temperature: -10°C to 50°C (14°F to 122°F)
Power consumption: 240 W
Pressing force: up to 23 kN
Rechargeable battery: 12V / 1.5 Ah (18Wh) LI-ionen
Recharge time: 30 to 60 min
Weight (incl. rechargeable battery): 2.34 kg (5.16 lb)
Protection class: IP20
Scope of supply
Article no. Article name Description
L13005424 LOKPRESS MB 06-10mm 1 pair of assembly jaws
L13005714 LOKPRESS MB 12-16mm 1 pair of assembly jaws
L13005715 LOKPRESS MB 18-22mm 1 pair of assembly jaws
L13005716 LOKPRESS MB 28-35mm 1 pair of assembly jaws
L14004026 LOKPRESS RB Rechargeable battery
L14004183 LOKPRESS BC Battery charger
Also available separately
Article no. Article name Description
L13006052 LOKPRESS MB 25,4/42mm 1 pair of assembly jaws
CORDLESS ASSEMBLY TOOL
ASSEMBLY TOOLS | 09
Our patented hand assembly tools were developed especially for LOKRING assembly. You only need one tool,
because the assembly jaws can be exchanged quickly and easily. Since the handles are offset on both sides, the
MZ-V is also suitable for flexible use during work in hard-to-reach areas.
LOKTOOL MZ-V
10 | ASSEMBLY TOOLS
ASSEMBLY TOOLS
HAND ASSEMBLY TOOL
Specially developed for the LOKRING assembly.
Patented lever mechanism for assembly with minimum effort.
Assembly jaws are easy to change for different tube diameters.
German technology.
IMPORTANT: Assembly jaws not included.
Article no. Article name
L13002095 LOKTOOL MZ
HAND ASSEMBLY TOOL WITH TWO BENDABLE HANDLES
Specially developed for the LOKRING assembly.
Patented lever mechanism for assembly with minimum effort.
Assembly jaws are easy to change for different tube diameters.
Both handles bend for use in hard-to-reach areas.
German technology.
IMPORTANT: Assembly jaws not included.
Article no. Article name
L13002811 LOKTOOL MZ-V
ASSEMBLY JAWS
Suitable for the LOKTOOL MZ and MZ-V hand assembly tools.
Article no. Article name For tube outer-ø[ mm | " ]
L20000304 LOKTOOL MB 8 EVP 6 – 8 | 1/4 - 5/16
L20000305 LOKTOOL MB 10 EVP 9 – 11 | 3/8
L20000306 LOKTOOL MB 12 EVP 12 – 13 | 1/2
L20000307 LOKTOOL MB 16 EVP 14 – 17 | 5/8
L20000308 LOKTOOL MB 19 EVP 18 – 20 | 3/4
L20000309 LOKTOOL MB 22 EVP 22 | 7/8
L20000589 LOKTOOL MB 25 EVP 25.4 | 1
L20000607 LOKTOOL MB 28 EVP 28 – 28.6 | 1 1/8
L20000623 LOKTOOL MB 35 EVP 35 | 1 3/8
L20001289 LOKTOOL MB 42 EVP 41.3 | 1 5/8
HAND ASSEMBLY TOOLS
ASSEMBLY TOOLS | 11
LOKRING ASSEMBLY SET UP TO 35 MM (1 3/8")
LOKRING assembly tool for tube outer diameters from 6 to 35 mm (1/4" to 1 3/8").
Neatly organised in a handy case with rigid foam insert.
Article no. Article name
L13004600 LOKBOX MZ-V MB 0835
Scope of supply
Article no. Article name Description
L13002811 LOKTOOL MZ-V Hand assembly tool
L20000304 LOKTOOL MB 8 EVP 1 pair of assembly jaws
L20000305 LOKTOOL MB 10 EVP 1 pair of assembly jaws
L20000306 LOKTOOL MB 12 EVP 1 pair of assembly jaws
L20000307 LOKTOOL MB 16 EVP 1 pair of assembly jaws
L20000308 LOKTOOL MB 19 EVP 1 pair of assembly jaws
L20000309 LOKTOOL MB 22 EVP 1 pair of assembly jaws
L20000607 LOKTOOL MB 28 EVP 1 pair of assembly jaws
L20000623 LOKTOOL MB 35 EVP 1 pair of assembly jaws
ASSEMBLY TOOL SETS
12 | ASSEMBLY TOOLS
LOKRING ASSEMBLY SET UP TO 12.7 MM (1/2") WITH LOKTOOL MZ
Set of tools for assembling LOKRING connections up to 12.7 mm (1/2").
With LOKTOOL MZ hand assembly tool.
Article no. Article name
L13005504 LOKRING Split/Multi-split kit MZ
Scope of supply
Article no. Article name Description
L13002095 LOKTOOL MZ Hand assembly tool
L20000304 LOKTOOL MB 8 EVP 1 pair of assembly jaws
L20000305 LOKTOOL MB 10 EVP 1 pair of assembly jaws
L20000306 LOKTOOL MB 12 EVP 1 pair of assembly jaws
LOKRING ASSEMBLY SET UP TO 12.7 MM (1/2") WITH LOKTOOL MZ-V
Set of tools for assembling LOKRING connections up to 12.7 mm (1/2").
With LOKTOOL MZ-V hand assembly tool.
Article no. Article name
L13005505 LOKRING Split/Multi-split kit MZ-V
Scope of supply
Article no. Article name Description
L13002811 LOKTOOL MZ-V Hand assembly tool
L20000304 LOKTOOL MB 8 EVP 1 pair of assembly jaws
L20000305 LOKTOOL MB 10 EVP 1 pair of assembly jaws
L20000306 LOKTOOL MB 12 EVP 1 pair of assembly jaws
ASSEMBLY TOOLS | 13
16 | LOKRING BRASS CONNECTORS
STABILISATION INSERTSSTRAIGHT CONNECTORS STRAIGHT REDUCING CONNECTORSEURO FLARE-FITTINGS
HAND ASSEMBLY TOOL ASSEMBLY JAWSLOKPREP
STARTER KIT
LOKRING® STARTER KIT
For a perfect start in the world of quick, easy and, above all, low-cost repairs to air conditioning systems.
Article no. Article name
L13005829 LOKBOX SK-RAC-01
Scope of supply
Article no. Article name Description Quantity
L13002811 LOKTOOL MZ-V Hand assembly tool 1
L20000304 LOKTOOL MB 8 EVP Assembly jaws 1
L20000305 LOKTOOL MB 10 EVP Assembly jaws 1
L20000306 LOKTOOL MB 12 EVP Assembly jaws 1
L20000307 LOKTOOL MB 16 EVP Assembly jaws 1
L20000308 LOKTOOL MB 19 EVP Assembly jaws 1
L20000309 LOKTOOL MB 22 EVP Assembly jaws 1
L14003406 LOKPREP LT 50 ML Anaerobic sealant 1
L14003581 LOKPREP HT 50 ML Anaerobic sealant 1
L12003214 LOKRING 6,35 VH MS 08 Stabilisation inserts 14
L12003085 LOKRING 9,53 VH MS 08 Stabilisation inserts 16
L12003087 LOKRING 12,7 VH MS 08 Stabilisation inserts 18
L12001990 LOKRING 16 VH MS 10 Stabilisation inserts 12
L12001991 LOKRING 19 VH MS 10 Stabilisation inserts 10
L12001997 LOKRING 22 VH MS 10 Stabilisation inserts 4
L13004772 LOKRING 6,35 NK MS 50 Straight connectors 5
L13001390 LOKRING 9,53 NK MS 50 Straight connectors 5
L13001571 LOKRING 12,7 NK MS 50 Straight connectors 5
L13001261 LOKRING 16 NK MS 50 Straight connectors 3
L13000605 LOKRING 19 NK MS 50 Straight connectors 3
L13000607 LOKRING 22 NK MS 50 Straight connectors 2
L13004773 LOKRING 9,53/6,35 NR MS 50 Straight reducing connectors 2
L13004785 LOKRING 12,7/6,35 NR MS 50 Straight reducing connectors 2
L13001702 LOKRING 12,7/9,53 NR MS 50 Straight reducing connectors 2
L13001407 LOKRING 16/9,53 NR MS 50 Straight reducing connectors 2
L13001703 LOKRING 16/12,7 NR MS 50 Straight reducing connectors 2
L13001826 LOKRING 19/12,7 NR MS 50 Straight reducing connectors 2
L13001446 LOKRING 19/16 NR MS 50 Straight reducing connectors 2
L13004846 LOKRING LR-EURO-06,35-EB EURO flare-fittings 4
L13004344 LOKRING LR-EURO-09,53-EB EURO flare-fittings 4
L13004847 LOKRING LR-EURO-12,7-EB EURO flare-fittings 2
L13004347 LOKRING LR-EURO-16-EB EURO flare-fittings 2
L13004388 LOKRING LR-EURO-19-EB EURO flare-fittings 1
LOKRING BRASS CONNECTORS | 17
Ø = tube outer diameter S = tube wall thickness
S
CORRECT CHOICE OF INSERTS
18 | LOKRING BRASS CONNECTORS
CHOOSING THE STABILISATION INSERT
Determine the tube wall thickness „S“ and the outer tube diameter „Ø“ on the basis of tube coding or using a slide
gauge on a thoroughly deburred tube.
For further information please refer to our submittals:
www.vulkan.com/en-us/lokring/downloads/technical-documentation-and-submittal
GRATFIX N-E TUBE DEBURRER
Article no. Article name For tube outer-ø For wall thickness Article no. Article name For tube outer-ø For wall thickness[ mm | " ] [ mm ] [ mm | " ] [ mm ]
L12003155 LOKRING 6 VH Ms 08 6 | – 0.8 L12001990 LOKRING 16 VH Ms 10 16 | 5/8 1.0
L12003156 LOKRING 6 VH Ms 10 6 | – 1.0 L12003090 LOKRING 16 VH Ms 11 16 | 5/8 1.1
L12003526 LOKRING 6,35 VH Ms 07 6.35 | 1/4 0.7 L12002033 LOKRING 18 VH Ms 10 18 | – 1.0
L12003214 LOKRING 6,35 VH Ms 08 6.35 | 1/4 0.8 L12003091 LOKRING 19 VH Ms 09 19 | 3/4 0.9
L12003287 LOKRING 6,35 VH Ms 09 6.35 | 1/4 0.9 L12001991 LOKRING 19 VH Ms 10 19 | 3/4 1.0
L12003215 LOKRING 6,35 VH Ms 10 6.35 | 1/4 1.0 L12003092 LOKRING 19 VH Ms 11 19 | 3/4 1.1
L12002894 LOKRING 8 VH Ms 08 8 | 5/16 0.8 L12002766 LOKRING 19 VH Ms 12 19 | 3/4 1.2
L12002175 LOKRING 8 VH Ms 10 8 | 5/16 1.0 L12003649 LOKRING 22 VH Ms 08 – | 7/8 0.8
L12001978 LOKRING 9,53 VH Ms 07 9.53 | 3/8 0.7 L12003288 LOKRING 22 VH Ms 09 – | 7/8 0.9
L12003085 LOKRING 9,53 VH Ms 08 9.53 | 3/8 0.8 L12001997 LOKRING 22 VH Ms 10 22 | 7/8 1.0
L12003086 LOKRING 9,53 VH Ms 09 9.53 | 3/8 0.9 L12003093 LOKRING 22 VH Ms 11 – | 7/8 1.1
L12001988 LOKRING 9,53 VH Ms 10 9.53 | 3/8 1.0 L12002895 LOKRING 22 VH Ms 12 – | 7/8 1.2
L12002457 LOKRING 10 VH Ms 08 10 | – 0.8 L12003442 LOKRING 22 VH Ms 14 – | 7/8 1.4
L12002018 LOKRING 10 VH Ms 10 10 | – 1.0 L12002547 LOKRING 25,4 VH Ms 10 25.4 | 1 1.0
L12003646 LOKRING 12 VH Ms 08 12 | – 0.8 L12002153 LOKRING 28 VH Ms 10 28 | – 1.0
L12002017 LOKRING 12 VH Ms 10 12 | – 1.0 L12003068 LOKRING 28 VH Ms 15 28 | – 1.5
L12001979 LOKRING 12,7 VH Ms 07 12.7 | 1/2 0.7 L12003290 LOKRING 28,6 VH Ms 09 28.6 | 1 1/8 0.9
L12003087 LOKRING 12,7 VH Ms 08 12.7 | 1/2 0.8 L12002550 LOKRING 28,6 VH Ms 10 28.6 | 1 1/8 1.0
L12003088 LOKRING 12,7 VH Ms 09 12.7 | 1/2 0.9 L12003067 LOKRING 28,6 VH Ms 12 28.6 | 1 1/8 1.2
L12001989 LOKRING 12,7 VH Ms 10 12.7 | 1/2 1.0 L12003070 LOKRING 35 VH Ms 12 35 | 1 3/8 1.2
L12002290 LOKRING 15 VH Ms 10 15 | – 1.0 L12003094 LOKRING 35 VH Ms 14 35 | 1 3/8 1.4
L12003443 LOKRING 16 VH Ms 08 16 | 5/8 0.8 L12002530 LOKRING 35 VH Ms 15 35 | 1 3/8 1.5
L12003089 LOKRING 16 VH Ms 09 16 | 5/8 0.9 L12004015 LOKRING 41,3 VH Ms 15 41.3 | 1 5/8 1.5
BRASS STABILISATION INSERTS
For additional stabilisation of the LOKRING connection under mechanical loads.
Supports calibration of coiled tube.
IMPORTANT: Stabilisation inserts must not be used within an NRA adaptor or within the stainless steel tube of a EURO flare-fitting.
STABILISATION INSERTS
LOKRING BRASS CONNECTORS | 19
LOKPREP APPLICATION
20 | LOKRING BRASS CONNECTORS
LOKPREP LT & HT
Metal tubes can have longitudinal grooves on the surface from production. These production-related
faults can be compensated quite easily by moistening the tube ends to be connected with LOKPREP
fluid before assembly. Thanks to its capillary characteristic, it can even flow into microscopic
cavities and fill these out completely. LOKPREP is not an adhesive, rather an anaerobic sealant
which hardens under oxygen exclusion and in contact with free metal ions.
POSSIBILITY A Move the nozzle 360° around the tube to distribute the LOKPREP evenly.
POSSIBILITY B Rotate the moistened tube through 360° inside the joint.
POSSIBILITY C Rotate the joint through 360° around the end of the tube.
ANAEROBIC SEALANT FOR BRASS LOKRING CONNECTORS (UP TO 30°C)
Specially developed for use with LOKRING brass connectors.
Can be used in ambient temperatures up to 30°C (86°F).
Must be used for all LOKRING assemblies.
Compensates for any unevenness in the tube surface.
Ensures that every LOKRING connection is hermetically sealed.
IMPORTANT:
LOKPREP 65G must be used for LOKRING aluminium connectors.
LOKPREP HT must be used for LOKRING brass connectors in ambient temperatures above 30°C (86°F).
Article no. Article name Content [ ml ]
L14003407 LOKPREP LT 15
L14003406 LOKPREP LT 50
ANAEROBIC SEALANT FOR BRASS LOKRING CONNECTORS (FROM 25°C)
Specially developed for use with LOKRING brass connectors in high ambient temperatures.
Can be used in ambient temperatures from 25°C (77°F).
Must be used for all LOKRING assemblies.
Compensates for any unevenness in the tube surface.
Ensures that every LOKRING connection is hermetically sealed.
IMPORTANT:
LOKPREP 65G must be used for LOKRING aluminium connectors.
LOKPREP LT must be used for LOKRING brass connectors in ambient temperatures below 25°C (77°F).
Article no. Article name Content [ ml ]
L14003404 LOKPREP HT 15
L14003581 LOKPREP HT 50
LOKPREP
LOKRING BRASS CONNECTORS | 21
30°C / 86°F-10°C / 14°F
-10 0 10 20 30 40 50 60 70
14 32 50 68 86 104 122 140 158
C°
F°
70°C / 158°F25°C / 77°F
-10 0 10 20 30 40 50 60 70
14 32 50 68 86 104 122 140 158
C°
F°
LOKRING BRASS CONNECTORS
CORROSION TEST ACCORDING TO ISO 9227 NSS
TEMPERATURE CHANGE CYCLE TEST
TENSILE TEST ACCORDING TO DIN EN 10 002
ALTERNATING PRESSURE TEST WITH 250,000 CYCLES
BURST PRESSURE TEST UP TO 300 bar (4350 psi)
JOINS*: COPPER TO COPPER / COPPER TO STEEL / STEEL TO STEEL
In order to easily identify if a brass LOKRING connector is suitable for imperial tubes,
metric tubes or both, the steel rings are marked as follows:
0 GROOVES IMPERIAL AND METRIC
1 GROOVE METRIC
2 GROOVES IMPERIAL
MAX. OPERATING PRESSURE 75 bar (1088 psi)
0 GROOVESIMPERIAL AND METRIC
1 GROOVEMETRIC
2 GROOVESIMPERIAL
REFERENCE STANDARDS EN 378-2 AND ISO 14903
22 | LOKRING BRASS CONNECTORS
*Other material combinations on request.
LOKRING®
STRAIGHT BRASS CONNECTORS
For connecting copper and/or steel tubes with identical tube outer diameters.
Article no. Article name For tube outer-ø[ mm | " ]
L13004601 LOKRING 6 NK Ms 50 6 | –
L13004772 LOKRING 6,35 NK Ms 50 6.35 | 1/4
L13001392 LOKRING 8 NK Ms 50 8 | 5/16
L13001390 LOKRING 9,53 NK Ms 50 9.53 | 3/8
L13001391 LOKRING 10 NK Ms 50 10 | –
L13001220 LOKRING 12 NK Ms 50 12 | –
L13001571 LOKRING 12,7 NK Ms 50 12.7 | 1/2
L13001226 LOKRING 15 NK Ms 50 15 | –
L13001261 LOKRING 16 NK Ms 50 16 | 5/8
L13001262 LOKRING 18 NK Ms 50 18 | –
L13000605 LOKRING 19 NK Ms 50 19 | 3/4
L13000607 LOKRING 22 NK Ms 50 22 | 7/8
L13000608 LOKRING 25,4 NK Ms 50 25.4 | 1
L13001944 LOKRING 28 NK Ms 50 28 | –
L13001945 LOKRING 28,6 NK Ms 50 28.6 | 1 1/8
L13003346 LOKRING 35 NK Ms 50 35 | 1 3/8
L13006037 LOKRING 41,3 NK Ms 50 41.3 | 1 5/8
LOKRING BRASS CONNECTORS | 23
STRAIGHT CONNECTORS
LOKRING BRASS CONNECTORS
CORROSION TEST ACCORDING TO ISO 9227 NSS
TEMPERATURE CHANGE CYCLE TEST
TENSILE TEST ACCORDING TO DIN EN 10 002
ALTERNATING PRESSURE TEST WITH 250,000 CYCLES
BURST PRESSURE TEST UP TO 300 bar (4350 psi)
JOINS*: COPPER TO COPPER / COPPER TO STEEL / STEEL TO STEEL
In order to easily identify if a brass LOKRING connector is suitable for imperial tubes,
metric tubes or both, the steel rings are marked as follows:
0 GROOVES IMPERIAL AND METRIC
1 GROOVE METRIC
2 GROOVES IMPERIAL
REFERENCE STANDARDS EN 378-2 AND ISO 14903
MAX. OPERATING PRESSURE 75 bar (1088 psi)
0 GROOVESIMPERIAL AND METRIC
1 GROOVEMETRIC
2 GROOVESIMPERIAL
LOKRING®
24 | LOKRING BRASS CONNECTORS
*Other material combinations on request.
STRAIGHT BRASS REDUCING CONNECTORS
For connecting copper and/or steel tubes with different tube outer diameters.
Article no. Article name Outer-ø tube 1 Outer-ø tube 2 Article no. Article name Outer-ø tube 1 Outer-ø tube 2[ mm | " ] [ mm | " ] [ mm | " ] [ mm | " ]
L13004603 LOKRING 6,35/6 NR Ms 50 6.35 | 1/4 p 6 | – L13001314 LOKRING 16/12 NR Ms 50 16 | 5/8 p 12 | –
L13004604 LOKRING 8/6 NR Ms 50 8 | 5/16 p 6 | – L13001703 LOKRING 16/12,7 NR Ms 50 16 | 5/8 p 12.7 | 1/2
L13004774 LOKRING 8/6,35 NR Ms 50 8 | 5/16 p 6.35 | 1/4 L13001315 LOKRING 18/16 NR Ms 50 18 | – p 16 | 5/8
L13004606 LOKRING 9,53/6 NR Ms 50 9.53 | 3/8 p 6 | – L13003552 LOKRING 19/9,53 NR Ms 50 19 | 3/4 p 9.53 | 3/8
L13004773 LOKRING 9,53/6,35 NR Ms 50 9.53 | 3/8 p 6.35 | 1/4 L13001826 LOKRING 19/12,7 NR Ms 50 19 | 3/4 p 12.7 | 1/2
L13001629 LOKRING 9,53/8 NR Ms 50 9.53 | 3/8 p 8 | 5/16 L13001446 LOKRING 19/16 NR Ms 50 19 | 3/4 p 16 | 5/8
L13004607 LOKRING 10/6 NR Ms 50 10 | – p 6 | – L13001823 LOKRING 19/18 NR Ms 50 19 | 3/4 p 18 | –
L13001651 LOKRING 10/8 NR Ms 50 10 | – p 8 | 5/16 L13003897 LOKRING 22/12,7 NR Ms 50 22 | 7/8 p 12.7 | 1/2
L13001396 LOKRING 10/9,53 NR Ms 50 10 | – p 9.53 | 3/8 L13001400 LOKRING 22/16 NR Ms 50 22 | 7/8 p 16 | 5/8
L13004608 LOKRING 12/6 NR Ms 50 12 | – p 6 | – L13001447 LOKRING 22/19 NR Ms 50 22 | 7/8 p 19 | 3/4
L13001233 LOKRING 12/9,53 NR Ms 50 12 | – p 9.53 | 3/8 L13003333 LOKRING 25,4/19 NR Ms 50 25.4 | 1 p 19 | 3/4
L13001234 LOKRING 12/10 NR Ms 50 12 | – p 10 | – L13003534 LOKRING 28/16 NR Ms 50 28 | – p 16 | 5/8
L13004609 LOKRING 12,7/6 NR Ms 50 12.7 | 1/2 p 6 | – L13003334 LOKRING 28,6/12,7 NR Ms 50 28.6 | 1 1/8 p 12.7 | 1/2
L13004785 LOKRING 12,7/6,35 NR Ms 50 12.7 | 1/2 p 6.35 | 1/4 L13003335 LOKRING 28,6/16 NR Ms 50 28.6 | 1 1/8 p 16 | 5/8
L13001831 LOKRING 12,7/8 NR Ms 50 12.7 | 1/2 p 8 | 5/16 L13003543 LOKRING 28,6/19 NR Ms 50 28.6 | 1 1/8 p 19 | 3/4
L13001702 LOKRING 12,7/9,53 NR Ms 50 12.7 | 1/2 p 9.53 | 3/8 L13003106 LOKRING 28,6/22 NR Ms 50 28.6 | 1 1/8 p 22 | 7/8
L13001789 LOKRING 12,7/10 NR Ms 50 12.7 | 1/2 p 10 | – L13003336 LOKRING 28,6/25,4 NR Ms 50 28.6 | 1 1/8 p 25.4 | 1
L13001822 LOKRING 12,7/12 NR Ms 50 12.7 | 1/2 p 12 | – L13003696 LOKRING 28,6/28 NR Ms 50 28.6 | 1 1/8 p 28 | –
L13004786 LOKRING 16/6,35 NR Ms 50 16 | 5/8 p 6.35 | 1/4 L13004088 LOKRING 35/22 NR Ms 50 35 | 1 3/8 p 22 | 7/8
L13001407 LOKRING 16/9,53 NR Ms 50 16 | 5/8 p 9.53 | 3/8 L13004611 LOKRING 35/28,6 NR Ms 50 35 | 1 3/8 p 28.6 | 1 1/8
L13001408 LOKRING 16/10 NR Ms 50 16 | 5/8 p 10 | – L13006038 LOKRING 41,3/35 NR Ms 50 41.3 | 1 5/8 p 35 | 1 3/8
LOKRING BRASS CONNECTORS | 25
STRAIGHT REDUCING CONNECTORS
EURO FLARE-FITTINGS
*Stabilisation inserts must not be used within the stainless steel tube of a EURO flare-fitting.
EURO FLARE-FITTINGS
26 | LOKRING BRASS CONNECTORS
The fast and simple solution for the installation and repair of air-conditioning systems. The prepressed copper seal on the cone ensures safe
assembly without the seal slipping even in spots that are difficult to reach.
EXAMPLE OF USE INCORRECT*
EURO FLARE-FITTING SEALS
Specifically designed for LOKRING flare connections.
Article no. Article name Size
L12003036 LOKRING EBD-06,35 1/4" SAE
L12003037 LOKRING EBD-09,53 3/8" SAE
L12003038 LOKRING EBD-12,7 1/2" SAE
L12003039 LOKRING EBD-16 5/8" SAE
L12003143 LOKRING EBD-19 3/4" SAE
EURO FLARE-FITTINGS
Pre-pressed copper seal for safe assembly without the seal slipping.
Connecting piece: stainless steel
Flare nut: brass
Can be used with all LOKRING type 50 brass connectors.
IMPORTANT: Stabilisation inserts must not be used within the stainless steel tube of a EURO flare-fitting.
Article no. Article name For tube outer-ø Thread Tightening torque[ mm | " ] [ SAE | Wrench size ] [Nm]
L13004846 LOKRING LR-EURO-06,35-EB 6.35 | 1/4 1/4" | 17 14 – 18
L13004344 LOKRING LR-EURO-09,53-EB 9.53 | 3/8 3/8" | 22 33 – 42
L13004847 LOKRING LR-EURO-12,7-EB 12.7 | 1/2 1/2" | 24 50 – 62
L13004347 LOKRING LR-EURO-16-EB 16 | 5/8 5/8" | 27 63 – 77
L13004388 LOKRING LR-EURO-19-EB 19 | 3/4 3/4" | 36 90 – 110
FLARE-FITTINGS
LOKRING BRASS CONNECTORS | 27
ELBOWS
The LOKRING elbows are made from copper tube in accordance with EN 12735-1
and suitable for an operating pressure up to 50 bar (725 psi).
ELBOWS
28 | LOKRING BRASS CONNECTORS
ELBOWS
LOKRING BRASS CONNECTORS | 29
90° COPPER ELBOWS
Supplied with the necessary stabilisation inserts.
In accordance with EN 12735-1.
Max. operating pressure: 50 bar (725 psi)
Article no. Article name Outer-ø[ mm | " ]
L13005952 LOKRING Cu 90-EB 9,53 9.53 | 3/8
L13005953 LOKRING Cu 90-EB 12,7 12.7 | 1/2
L13005954 LOKRING Cu 90-EB 16 16 | 5/8
L13005955 LOKRING Cu 90-EB 19 19 | 3/4
L13005956 LOKRING Cu 90-EB 22 22 | 7/8
L13005957 LOKRING Cu 90-EB 28,6 28.6 | 1 1/8
L13005958 LOKRING Cu 90-EB 35 35 | 1 3/8
L13006041 LOKRING Cu 90-EB 41,3 41.3 | 1 5/8
45° COPPER ELBOWS
Supplied with the necessary stabilisation inserts.
In accordance with EN 12735-1.
Max. operating pressure: 50 bar (725 psi)
Article no. Article name Outer-ø[ mm | " ]
L13005959 LOKRING Cu 45-EB 9,53 9.53 | 3/8
L13005960 LOKRING Cu 45-EB 12,7 12.7 | 1/2
L13005961 LOKRING Cu 45-EB 16 16 | 5/8
L13005962 LOKRING Cu 45-EB 19 19 | 3/4
L13005963 LOKRING Cu 45-EB 22 22 | 7/8
L13005964 LOKRING Cu 45-EB 28,6 28.6 | 1 1/8
L13005965 LOKRING Cu 45-EB 35 35 | 1 3/8
L13006040 LOKRING Cu 45-EB 41,3 41.3 | 1 5/8
BRANCHES
The LOKRING® branch system has been specially developed by our engineers for the simple planning and fast installation of VRF
air-conditioning systems or for retrofitting air-conditioning systems.
BRANCHES
30 | LOKRING BRASS CONNECTORS
YP BRANCHES
LOKRING BRASS CONNECTORS | 31
PARALLEL BRANCHES (YP) MADE OF COPPER
YP branch with B1 fire protection class foam insulation.
Supplied with the necessary stabilisation inserts.
In accordance with EN 12735-1.
Max. operating pressure: 45 bar (650 psi)
Article no. Article name Outer-ø[ mm | " ]
L12003242 LOKRING Cu YP 9,53 9.53 | 3/8
L12003243 LOKRING Cu YP 12,7 12.7 | 1/2
L12003244 LOKRING Cu YP 16 16 | 5/8
L12003245 LOKRING Cu YP 19 19 | 3/4
L12003246 LOKRING Cu YP 22 22 | 7/8
L12003247 LOKRING Cu YP 28,6 28.6 | 1 1/8
L12003799 LOKRING Cu YP 35 35 | 1 3/8
L12004042 LOKRING Cu YP 41,3 41.3 | 1 5/8
T-BRANCHES
32 | LOKRING BRASS CONNECTORS
T-BRANCHES (YT) MADE OF COPPER
YT branch with B1 fire protection class foam insulation.
Supplied with the necessary stabilisation inserts.
In accordance with EN 12735-1.
Max. operating pressure: 45 bar (650 psi)
Article no. Article name Outer-ø[ mm | " ]
L12003010 LOKRING Cu YT 9,53 9.53 | 3/8
L12003013 LOKRING Cu YT 12,7 12.7 | 1/2
L12003014 LOKRING Cu YT 16 16 | 5/8
L12003294 LOKRING Cu YT 19 19 | 3/4
L12003295 LOKRING Cu YT 22 22 | 7/8
L12003297 LOKRING Cu YT 28,6 28.6 | 1 1/8
L12003298 LOKRING Cu YT 35 35 | 1 3/8
L12004043 LOKRING Cu YT 41,3 41.3 | 1 5/8
HEADERS MADE OF COPPER
Header with B1 fire protection class foam insulation.
Supplied with the necessary stabilisation inserts.
In accordance with EN 12735-1.
Max. operating pressure: 45 bar (650 psi)
Article no. Article name Outer-ø tube 1 Outer-ø tube 2[ mm | " ] [ mm | " ]
L13005130 LOKRING Cu Header 12,7-6,35 12.7 | 1/2 p 6.35 | 1/4
L13005131 LOKRING Cu Header 16-9,53 16 | 5/8 p 9.53 | 3/8
L13005132 LOKRING Cu Header 19-12,7 19 | 3/4 p 12.7 | 1/2
L13005133 LOKRING Cu Header 28,6-16 28.6 | 1 1/8 p 16 | 5/8
BRASS STOPPERS
For hermetically sealing tube ends.
Can be used with LOKRING copper header for example.
Article no. Article name For tube outer-ø[ mm | " ]
L13004940 LOKRING 6 VS Ms 50 6 | –
L13004941 LOKRING 6,35 VS Ms 50 6.35 | 1/4
L13004943 LOKRING 9,53 VS Ms 50 9.53 | 3/8
L13004946 LOKRING 12,7 VS Ms 50 12.7 | 1/2
L13004947 LOKRING 16 VS Ms 50 16 | 5/8
L13004949 LOKRING 19 VS Ms 50 19 | 3/4
L13004953 LOKRING 28,6 VS Ms 50 28.6 | 1 1/8
1
2
HEADERS AND STOPPERS
LOKRING BRASS CONNECTORS | 33
The variety of reducing connectors, reducing T-connectors and also reducing elbow connectors needed for combining all the different tube
diameters which are nowadays being used in air conditioning systems is constantly growing. In order to stay flexible installers needed to build
a huge stock of all the different connectors. With the new NRA reducing adaptors VULKAN Lokring has launched the solution for this problem.
You just need the standard connectors, T-connectors and elbow connectors and make the reduction by connecting the correct NRA adaptor.
Thus you will always have the correct connection available directly on-site.
EXAMPLE OF USE INCORRECT*
USE OF T-CONNECTORS AND REDUCING ADAPTORS WITH STABILISATION INSERTS
*Stabilisation inserts must not be used within an NRA adaptor.
34 | LOKRING BRASS CONNECTORS
USE OF REDUCING ADAPTORS
BRASS T-CONNECTORS
T-piece for connecting copper and/or steel tubes with identical tube outer diameters.
In conjunction with LOKRING NRA brass reducing adaptors, T-reducing connectors can be created.
Article no. Article name For tube outer-ø[ mm | " ]
L13004614 LOKRING 6 NTK Ms 50 6 | –
L13004777 LOKRING 6,35 NTK Ms 50 6.35 | 1/4
L13001193 LOKRING 9,53 NTK Ms 50 9.53 | 3/8
L13001194 LOKRING 10 NTK Ms 50 10 | –
L13001195 LOKRING 12 NTK Ms 50 12 | –
L13001698 LOKRING 12,7 NTK Ms 50 12.7 | 1/2
L13001198 LOKRING 16 NTK Ms 50 16 | 5/8
L13001190 LOKRING 18 NTK Ms 50 18 | –
L13001199 LOKRING 19 NTK Ms 50 19 | 3/4
L13000812 LOKRING 22 NTK Ms 50 22 | 7/8
L13003339 LOKRING 28 NTK Ms 50 28 | –
L13003338 LOKRING 28,6 NTK Ms 50 28.6 | 1 1/8
L13005002 LOKRING 35 NTK Ms 50 35 | 1 3/8
BRASS REDUCING ADAPTORS
Can be used with all LOKRING type 50 brass connectors (e.g. connectors with elbows and T-connectors) to form reducers.
IMPORTANT: Stabilisation inserts must not be used within an NRA adaptor.
Article no. Article name Outer-ø tube 1 Outer-ø tube 2[ mm | " ] [ mm | " ]
L13005053 LOKRING 9,53/6,35 NRA Ms 50 9.53 | 3/8 p 6.35 | 1/4
L13005050 LOKRING 10/6 NRA Ms 50 10 | – p 6 | –
L13005061 LOKRING 12/10 NRA Ms 50 12 | – p 10 | –
L13005054 LOKRING 12,7/6,35 NRA Ms 50 12.7 | 1/2 p 6.35 | 1/4
L13005058 LOKRING 12,7/9,53 NRA Ms 50 12.7 | 1/2 p 9.53 | 3/8
L13005059 LOKRING 16/9,53 NRA Ms 50 16 | 5/8 p 9.53 | 3/8
L13005062 LOKRING 16/10 NRA Ms 50 16 | 5/8 p 10 | –
L13005064 LOKRING 16/12 NRA Ms 50 16 | 5/8 p 12 | –
L13005067 LOKRING 16/12,7 NRA Ms 50 16 | 5/8 p 12.7 | 1/2
L13005073 LOKRING 18/16 NRA Ms 50 18 | – p 16 | 5/8
L13005060 LOKRING 19/9,53 NRA Ms 50 19 | 3/4 p 9.53 | 3/8
L13005913 LOKRING 19/12 NRA Ms 50 19 | 3/4 p 12 | –
L13005068 LOKRING 19/12,7 NRA Ms 50 19 | 3/4 p 12.7 | 1/2
L13005074 LOKRING 19/16 NRA Ms 50 19 | 3/4 p 16 | 5/8
L13005912 LOKRING 19/18 NRA Ms 50 19 | 3/4 p 18 | –
L13005066 LOKRING 22/12 NRA Ms 50 22 | 7/8 p 12 | –
L13005069 LOKRING 22/12,7 NRA Ms 50 22 | 7/8 p 12.7 | 1/2
L13005075 LOKRING 22/16 NRA Ms 50 22 | 7/8 p 16 | 5/8
L13005078 LOKRING 22/18 NRA Ms 50 22 | 7/8 p 18 | –
L13005079 LOKRING 22/19 NRA Ms 50 22 | 7/8 p 19 | 3/4
L13005090 LOKRING 28/22 NRA Ms 50 28 | – p 22 | 7/8
L13005077 LOKRING 28,6/16 NRA Ms 50 28.6 | 1 1/8 p 16 | 5/8
L13005081 LOKRING 28,6/19 NRA Ms 50 28.6 | 1 1/8 p 19 | 3/4
L13005083 LOKRING 28,6/22 NRA Ms 50 28.6 | 1 1/8 p 22 | 7/8
L13005926 LOKRING 28,6/28 NRA Ms 50 28.6 | 1 1/8 p 28 | –
L13005933 LOKRING 35/22 NRA Ms 50 35 | 1 3/8 p 22 | 7/8
L13005934 LOKRING 35/28 NRA Ms 50 35 | 1 3/8 p 28 | –
L13005935 LOKRING 35/28,6 NRA Ms 50 35 | 1 3/8 p 28.6 | 1 1/8
T-CONNECTORS AND REDUCING ADAPTORS
LOKRING BRASS CONNECTORS | 35
SPECIAL CONNECTORS
Thanks to our LOKRING connection technology, fitting sensitive components is as easy as connecting normal tubes.
36 | LOKRING BRASS CONNECTORS
SPECIAL CONNECTORS
BRASS CONNECTORS WITH SCHRADER VALVE
For connecting copper and/or steel tubes with identical tube outer diameters.
With 1/4" SAE schrader valve connection.
Max. operating pressure: 50 bar (725 psi)
Article no. Article name For tube outer-ø[ mm | " ]
L13004779 LOKRING 6,35 NK Ms SV 50 6.35 | 1/4
L13001504 LOKRING 8 NK Ms SV 50 8 | 5/16
L13001398 LOKRING 9,53 NK Ms SV 50 9.53 | 3/8
L13001752 LOKRING 12,7 NK Ms SV 50 12.7 | 1/2
L13001324 LOKRING 16 NK Ms SV 50 16 | 5/8
BALL VALVES WITH SCHRADER VALVE
Suitable for all common refrigerants.
Bi-flow system for any mounting direction.
Temperature range: -40°C to 150°C (-40°F to 302°F)
Max. operating pressure: 50 bar (725 psi)
Supplied with the necessary stabilisation inserts.
Article no. Article name For tube outer-ø[ mm | " ]
L13005940 LOKRING BVS 6,35 6.35 | 1/4
L13005941 LOKRING BVS 9,53 9.53 | 3/8
L13005942 LOKRING BVS 12,7 12.7 | 1/2
L13005943 LOKRING BVS 16 16 | 5/8
L13005944 LOKRING BVS 19 19 | 3/4
L13005945 LOKRING BVS 22 22 | 7/8
L13005946 LOKRING BVS 28,6 28.6 | 1 1/8
L13005947 LOKRING BVS 35 35 | 1 3/8
SPECIAL CONNECTORS
LOKRING BRASS CONNECTORS | 37
Ø = tube outer diameter S = tube wall thickness
S
CHOOSING THE STABILISATION INSERT
GRATFIX N-E TUBE DEBURRER
Determine the tube wall thickness „S“ and the outer tube diameter „Ø“ on the basis of tube coding or using a slide
gauge on a thoroughly deburred tube.
For further information please refer to our submittals:
www.vulkan.com/en-us/lokring/downloads/technical-documentation-and-submittal
CORRECT CHOICE OF INSERTS
40 | LOKRING ALUMINIUM CONNECTORS
ALUMINIUM STABILISATION INSERTS
For additional stabilisation of the LOKRING connection under mechanical loads.
Supports calibration of coiled tube.
Article no. Article name For tube outer-ø For wall thickness[ mm | " ] [ mm]
L13005456 LOKRING 6,35 VH Al 08 6.35 | 1/4 0.8
L13005482 LOKRING 6,35 VH Al 10 6.35 | 1/4 1.0
L13005457 LOKRING 8 VH Al 08 8 | 5/16 0.8
L13005483 LOKRING 8 VH Al 10 8 | 5/16 1.0
L13005458 LOKRING 9,53 VH Al 08 9.53 | 3/8 0.8
L13005484 LOKRING 9,53 VH Al 10 9.53 | 3/8 1.0
L13005574 LOKRING 10 VH Al 10 10 | – 1.0
L13005459 LOKRING 12,7 VH Al 08 12.7 | 1/2 0.8
L13005485 LOKRING 12,7 VH Al 10 12.7 | 1/2 1.0
L13005577 LOKRING 12,7 VH Al 12 12.7 | 1/2 1.2
L13005575 LOKRING 15 VH Al 10 15 | – 1.0
L13005460 LOKRING 16 VH Al 10 16 | 5/8 1.0
L13005578 LOKRING 16 VH Al 12 16 | 5/8 1.2
L13005580 LOKRING 16 VH Al 15 16 | 5/8 1.5
L13005576 LOKRING 18 VH Al 10 18 | – 1.0
L13005461 LOKRING 19 VH Al 10 19 | 3/4 1.0
L13005700 LOKRING 19 VH Al 12 19 | 3/4 1.2
L13005579 LOKRING 19 VH Al 15 19 | 3/4 1.5
L13005462 LOKRING 22 VH Al 12 22 | 7/8 1.2
STABILISATION INSERTS
LOKRING ALUMINIUM CONNECTORS | 41
LOKPREP 65G
Metal tubes can have longitudinal grooves on the surface from production. These production-related
faults can be compensated quite easily by moistening the tube ends to be connected with LOKPREP
fluid before assembly. Thanks to its capillary characteristic, it can even flow into microscopic
cavities and fill these out completely. LOKPREP is not an adhesive, rather an anaerobic sealant
which hardens under oxygen exclusion and in contact with free metal ions.
POSSIBILITY A Move the nozzle 360° around the tube to distribute the LOKPREP evenly.
POSSIBILITY B Rotate the moistened tube through 360° inside the joint.
POSSIBILITY C Rotate the joint through 360° around the end of the tube.
LOKPREP APPLICATION
42 | LOKRING ALUMINIUM CONNECTORS
ANAEROBIC SEALANT FOR ALUMINIUM LOKRING CONNECTORS
Specially developed for use with LOKRING aluminium connectors.
Must be used for all LOKRING assemblies.
Compensates for any unevenness in the tube surface.
Ensures that every LOKRING connection is hermetically sealed.
IMPORTANT: For LOKRING brass connectors, either LOKPREP LT or LOKPREP HT must be used depen-ding on the ambient temperature.
Article no. Article name Content [ml]
L14000878 LOKPREP 65G 15
LOKPREP
LOKRING ALUMINIUM CONNECTORS | 43
LOKRING ALUMINIUM CONNECTORS
CORROSION TEST ACCORDING TO ISO 9227 NSS
TEMPERATURE CHANGE CYCLE TEST
TENSILE TEST ACCORDING TO DIN EN 10 002
ALTERNATING PRESSURE TEST WITH 250,000 CYCLES
BURST PRESSURE TEST UP TO 200 bar (2900 psi)
JOINS*: ALUMINIUM TO ALUMINIUM / ALUMINIUM TO COPPER**
REFERENCE STANDARDS EN 378-2 AND ISO 14903
MAX. OPERATING PRESSURE 50 bar (725 psi)
44 | LOKRING ALUMINIUM CONNECTORS
LOKRING®
*Other material combinations on request.
**When connecting aluminium tubes to copper tubes, use a heat shrink sleeve to protect the connection against corrosion.
LOKRING ALUMINIUM CONNECTORS | 45
STRAIGHT ALUMINIUM CONNECTORS
For connecting aluminium tubes and for connecting aluminium tubes to copper or steel tubes with
identical tube outer diameters.
IMPORTANT: When connecting aluminium tubes to copper tubes, use a heat shrink sleeve to protect the connection against corrosion.
Article no. Article name For tube outer-ø[ mm | " ]
L13005444 LOKRING 6,35 NK Al 50 6.35 | 1/4
L13005445 LOKRING 8 NK Al 50 8 | 5/16
L13005446 LOKRING 9,53 NK Al 50 9.53 | 3/8
L13005502 LOKRING 10 NK Al 50 10 | –
L13005447 LOKRING 12,7 NK Al 50 12.7 | 1/2
L13005564 LOKRING 15 NK Al 50 15 | –
L13005448 LOKRING 16 NK Al 50 16 | 5/8
L13005501 LOKRING 18 NK Al 50 18 | –
L13005449 LOKRING 19 NK Al 50 19 | 3/4
L13005450 LOKRING 22 NK Al 50 22 | 7/8
STRAIGHT CONNECTORS
STRAIGHT ALUMINIUM REDUCING CONNECTORS
For connecting aluminium tubes and for connecting aluminium tubes to copper or steel tubes with
different tube outer diameters.
IMPORTANT: When connecting aluminium tubes to copper tubes, use a heat shrink sleeve to protect the connection against corrosion.
Article no. Article name Outer-ø tube 1 Outer-ø tube 2 [ mm | " ] [ mm | " ]
L13005451 LOKRING 9,53/6,35 NR Al 50 9.53 | 3/8 p 6.35 | 1/4
L13005664 LOKRING 9,53/8 NR Al 50 9.53 | 3/8 p 8 | 5/16
L13005668 LOKRING 10/9,53 NR Al 50 10 | – p 9.53 | 3/8
L13005452 LOKRING 12,7/9,53 NR Al 50 12.7 | 1/2 p 9.53 | 3/8
L13005453 LOKRING 16/12,7 NR Al 50 16 | 5/8 p 12.7 | 1/2
L13005663 LOKRING 16/15 NR Al 50 16 | 5/8 p 15 | –
L13005454 LOKRING 19/16 NR Al 50 19 | 3/4 p 16 | 5/8
L13005671 LOKRING 19/18 NR Al 50 19 | 3/4 p 18 | –
L13005455 LOKRING 22/19 NR Al 50 22 | 7/8 p 19 | 3/4
STRAIGHT REDUCING CONNECTORS
46 | LOKRING ALUMINIUM CONNECTORS
LOKRING ALUMINIUM CONNECTORS | 47
ALUMINIUM FLARE NUTS
Anodised aluminium flare nuts made from a special alloy for refrigeration and air-conditioning applications.
IMPORTANT: In conjunction with brass connecting pieces, Teflon tape should be used to protect the connection against contact corrosion.
Article no. Article name For tube outer-ø Thread Wrench size
Tightening torque
[ mm | " ] [Nm]
L13005463 LOKRING Al FN 6,35 6.35 | 1/4 1/4" SAE 17 20
L13005464 LOKRING Al FN 9,53 9.53 | 3/8 3/8" SAE 22 30
L13005465 LOKRING Al FN 12,7 12.7 | 1/2 1/2" SAE 24 40
L13005466 LOKRING Al FN 16 16 | 5/8 5/8" SAE 27 50
L13005467 LOKRING Al FN 19 19 | 3/4 3/4" SAE 36 60
FLARE-FITTINGS
HEAT SHRINK SLEEVES WITH HOTMELT ADHESIVE
Heat shrink slleeves must be used with all aluminium to copper tube connections.
ACCESSORIES
48 | ACCESSORIES
HEAT SHRINK SLEEVES WITH HOTMELT ADHESIVE
Protects connections against contact corrosion.
Must be used with all aluminium to copper tube connections.
High shrink ratio.
Article no. Article name For LOKRING connector sizes
L14004177 HSS 6-8 NK 6 – 8
L14004179 HSS 9,53-12,7 NK 9.53 – 12.7
L14004181 HSS 15-22 NK 15 – 22
ACCESSORIES
ACCESSORIES | 49
ABRASIVE MAT
For cleaning tube ends without scratching.
Suitable for all surfaces.
Solvent-resistant.
Dimensions: 158 mm x 224 mm
Highest quality from 3M.
Article no. Article name
L14002211 AM-SV
SANDPAPER
For cleaning tube ends.
Grain: 120
Dimensions: 230 mm x 280 mm
Highest quality from 3M.
Article no. Article name
L14000002 SP-SL
TUBE DEBURRER
For quick and clean deburring of tubes, edges and steel plates.
Article no. Article name Description
L14001362 Gratfix N-E Tube deburrer
L14001363 N-E100 Replacement blade
50 | ACCESSORIES
ACCESSORIES
ACCESSORIES | 51
TUBE CUTTER
Diameter range: 6 to 28 mm (1/4" to 1 1/8") Article no. Article name Description
L14000022 TC-1000 Tube cutter
L13003601 TCS-1000 Cutting blade
COMPACT TUBE CUTTER
Diameter range: 3 to 16 mm (1/8" to 5/8") Article no. Article name Description
L14001102 TC-1050 Tube cutter
L14001103 TCS-1050 Cutting blade
52 | LOKRING ASSEMBLY
LOKRING® ASSEMBLY TYPE 50
01. TUBE DEBURRER 02. ABRASIVE MAT 03. STABILISATION INSERTS 04. PERMANENT MARKER 05. LOKPREP 06. JOINT 07. LOKRINGS 08. HAND ASSEMBLY TOOL WITH ASSEMBLY JAWS MB EVP
01.02.
03.
05.06.
08.
07.
04.
Insert a stabilisation insert (03) suitable for the material, the outer tube diameter Ø and tube wall thickness S. Stabilisation inserts (03) may not be necessary in case of use with refrigerants with an operating pressure lower than 25 bar (e.g. R134a car A/C systems or refrigerator cabinets).
Clean the tube end by rubbing it in rotary movements using the abrasive mat (02).
Determine the tube wall thickness S and the outer tube diameter Ø on the basis of tube coding or using a slide gauge.
S
Ø = outer tube diameter S = tube wall thickness01. 02.
1
Deburr the tube end all the way round using a tube deburrer (01). Use different deburring tools for different materials.
Choose the correct LOKPREP (05) for the tube material and the ambient temperature.Apply LOKPREP (05) all the way round the sealing area of the tube end. Respect the correct curing time of the LOKPREP (05).
2 Before applying the LOKPREP (05), push the joint (06) onto the tube until you can feel the inner stop. Mark (04) the correct insertion depth on the tube.
Push the joint (06) onto the tube until it reaches the inner stop .
Put the assembly jaws (08) in place behind the LOKRING (07) and the assembly stop of the joint (06). Press the tube connection together. Do not change the insertion depth of the tube and joint (06). Press the tube connection until the LOKRING (07) is flush to the assembly stop of the joint (06). Respect the curing time of the LOKPREP (05) before applying forces to the connection.
Check the correct assembly/insertion depth on the basis of the position marking.
03. 04.
05.
3
06.
4
5
06.
06.
08.07.
LOKRING ASSEMBLY | 53
-10°C14°F
0°C32°F
10°C50°F
20°C68°F
30°C86°F
40°C104°F
50°C122°F
60°C140°F
70°C 158°F
*
CHOOSING THE STABILISATION INSERT
Use Ms stabilisation inserts for copper tube and Al stabilisation inserts for aluminium tube.
Note: Stabilisation inserts must not be used inside an NRA adaptor or inside the stainless steel tube of a EURO flare-fitting.
Article name
Outer tube diameter (Ø) Tube material Ms for brass* or Al for aluminium*
Tube wall thickness in mm (S)Stabilisation insert
CHOOSING THE LOKPREP
Use an aluminium LOKRING connector and LOKPREP 65G for all connections from aluminium to aluminium or aluminium to copper.
Always use a heat shrink sleeve for connections from aluminium to copper in order to protect the connection against corrosion.
Use a brass LOKRING connector and LOKPREP LT or LOKPREP HT for all connections from copper to copper.
The following diagram shows the suitable temperature ranges for LOKPREP LT and LOKPREP HT.
LOKPREP HT | from 25 °C / 77°F
LOKPREP LT | up to 30 °C / 86°F
40
30
20
10
0
-10°C14°F
0°C 32°F
10°C 50°F
20°C 68°F
30°C 86°F
40°C 104°F
50°C 122°F
60°C 140°F
70°C 158°F
Curing time in min
LOKPREP 65G
LOKPREP LT
LOKPREP HT
Temperature
EXAMPLES AS ASSEMBLY AID
Wrong: LOKRING has not been pres-sed through to the assembly stop.
Right: LOKRING has been pressed flush to the assembly stop.
Wrong: Stabilisation insert is missing.
Right: Correct stabilisation insert is inserted.
Wrong: Assembly jaws are not set in place correctly.
Right: Assembly jaws are set flush correctly.
Wrong: The tube is not pushed in as far as the inner stop.
Right: Push the tube in until you can feel the inner stop.
LOKRING 6,35 VH Ms 08
56 | ONLINE-SERVICE
FOR FURTHER INFORMATION, PLEASE REFER TO OUR WEBSITE WWW.VULKAN.COM.
ONLINE-SERVICE
AUTHORISED DISTRIBUTORSwww.vulkan.com/en-us/lokring/contact/
VIDEOS www.vulkan.com/en-us/lokring/videos/
TECHNICAL DOCUMENTATION AND SUBMITTALwww.vulkan.com/en-us/lokring/downloads/technical-documentation-and-submittal
CATALOGUES & BROCHURES www.vulkan.com/en-us/lokring/downloads/
CERTIFICATES www.vulkan.com/en-us/lokring/downloads/certificates/
VALIDITY CLAUSE The LOKRING® tube connection technology represents a proven method of producing hermetically sealed metal-to-metal tube connections. The LOKRING® tube connections are mainly used in the refrigeration and air conditioning industries. The use of LOKRING® tube connection technology in other fields is to be discussed with VULKAN Lokring. VULKAN Lokring as the supplier is responsible for the qualitative delivery of the tube connections and tools which are ordered from this catalogue.
The purchaser is responsible for the use of the LOKRING® tube connections and tools as directed. The assembly has to be done accordingly to the instructions and exclusively with original LOKRING® parts. The present Refrigeration & Air Conditioning catalogue shall replace all previous editions, any previous printings shall no longer be valid. The data contained in this catalogue refers to the valid state of affairs in time of the copy deadline. Any changes due to technical progress are reserved.
Status: 03/2018
All duplication, reprinting and translation rights are reserved. Further remarks for the LOKRING® assembly are available on request.
Article no.: L19000188
PUBLISHER:VULKAN Lokring Rohrverbindungen GmbH & Co. KGHeerstraße 66, 44653 Herne / GermanyTel.: + 49 (23 25) 922-155Fax: + 49 (23 25) 51222 E-mail: [email protected]
CONCEPT AND DESIGN:Hackforth Holding GmbH & Co. KG / MSCHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
PREPRESS:Hackforth Holding GmbH & Co. KG / MSCHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
IMPRINT | 57
IMPRINT
www.vulkan.com
www.vulkan.com/en-us/lokring/videos/
Eine Übersicht unserer autorisierten Händler weltweit finden Sie auf: www.vulkan.com/en-us/lokring/contact/
02 LEAK DETECTION
10 RECOVERY, EVACUATION, CHARGING
22 QUICK-COUPLERS
26 REFRIGERANTS
28 MEASUREMENT AND DIAGNOSTIC DEVICES
32 FITTINGS
34 COMPRESSORS
36 USEFUL ACCESSORIES
40 ONLINE-SERVICE
41 IMPRINT
CONTENTS
02 | LEAK DETECTION
LEAK DETECTION
PAGE 04 HYDROGEN LEAK DETECTOR
PAGE 06 TRACE GAS LEAK DETECTION KITS
PAGE 08 REFRIGERANT LEAK DETECTOR
PAGE 09 NITROGEN PRESSURE TESTING
H
H
H
HH
H
H
H
H
HH H
H
TRACE GAS LEAK DETECTION
HYDROGEN MOLECULES HAVE THE LOWEST ATOMIC MASS
LEAKAGE FORMING GAS 95/5 ESCAPES
PROBE WITH DUAL SENSORS
FOR LEAK DETECTION, the empty air conditioning system is charged with forming
gas 95/5 consisting of 95 percent nitrogen and 5 percent hydrogen. Forming gas
95/5 is non-flammable, non-toxic, non-corrosive and not harmful to the environ-
ment. Hydrogen molecules have the smallest atomic mass of all the elements and
can escape due to even the smallest leak. With the aid of hydrogen leak detectors
LOKTRACER TLD.500 and LOKTRACER TLD.1000, very small leakages can there-
fore be detected. The leak detectors react almost exclusively to hydrogen. There
are therefore hardly any cross sensitivities
THE LEAK DETECTION TECHNOLOGY DEVELOPED FOR THE INDUSTRY IS PERFECTLY TAILORED TO SERVICING APPLICATIONS, AND THEREFORE GUARANTEES LEGALLY COMPLIANT, FAST, RELIABLE AND SIMPLE LEAK DETECTION.
LOKTRACE IN COMPARISON TO CONVENTIONAL LEAK DETECTION METHODS
LOKTRACE UV dyeElectronic
refrigerant leak detectorsNitrogen and
leak detection spray
Compliance with legal requirements 3 7 7 3Direct operability 3 7 3 3Detects the smallest leakages 3 7 3 7Reliability 3 3 7 3
LEAK DETECTION | 03
FIND THE LEAK!
Developed especially for refrigeration and air conditioning technology.
Made in Germany!
Effective hydrogen leak detector thanks to unique dual sensors.
Very low cross sensitivity to external gases.
Incremental approximation of major leaks (zero tracking).
Automatic sensor cleaning.
No pump or filter due to diffusion technology.
Integrated LED light.
Acoustic and optical alarm.
Article no. Article name
L13005099 LOKTRACER TLD.500
Technical data
Time to operability: < 60 s
Reaction time: 1 to 2 s
Operating time: approx. 5 h
Power supply: rechargeable batteries
Also available separately
Article no. Article name Description
L14004043 PA-TLD.500 Mains charger
HYDROGEN LEAK DETECTOR
04 | LEAK DETECTION
HYDROGEN LEAK DETECTOR
Additional performance features compared to LOKTRACER TLD.500:
Robust aluminium housing.
Lit LCD display.
Recovery pump enables leak detection even through floor screed, insulation and foam.
Swift, safe leak detection through “Search Mode”.
ppm measurement of leak rate through “Analyse Mode”.
Article no. Article name
L13005244 LOKTRACER TLD.1000
Technical data
Time to operability: < 60 s
Reaction time: 1 to 2 s
Operating time: approx. 5 h
Power supply: batteries
Also available separately
Article no. Article name Description
L14004385 PA-TLD.1000 Mains charger
LEAK DETECTION | 05
HYDROGEN LEAK DETECTOR WITH LEAKAGE RATE DISPLAY
CARRY CASE KIT FOR TRACE GAS LEAK DETECTION IN VEHICLE AIR CONDITIONING SYSTEMS
Complete kit for trace gas leak detection in vehicle air conditioning systems, in a robust carry case.
Pressure reducer connection: W21,8-14 with left-handed thread.
Article no. Article name Description
L13005139 LOKBOX TG-AUTO-500 with LOKTRACER TLD.500
Also available separately
Article no. Article name Description
L14003951 PR-TG.10 W21,8-14 10 bar (150 psi) pressure reducer
L13005015 PA-1/LT.10 Manifold gauge 10 bar (150 psi)
L13004971 HDS-A-G+G-3000-Y Charging hose
L13002909 HDS-J-G+G-3000-Y Charging hose
L14002502 QC-134a-BM Low pressure quick-coupler
L14002503 QC-134a-RM High pressure quick-coupler
CYLINDER TROLLEY KIT FOR TRACE GAS LEAK DETECTION IN VEHICLE AIR CONDITIONING SYSTEMS
Complete kit for trace gas leak detection in vehicle air conditioning systems.
The cylinder trolley is suitable for standard 10 l or 20 l gas cylinders.
The gas cylinder pictured is not included.
Pressure reducer connection: W21,8-14 with left-handed thread.
Article no. Article name Description
L13005004 LOKTRACE KA-500 W21,8-14 with LOKTRACER TLD.500
L13005184 LOKTRACE KA-1000 W21,8-14 with LOKTRACER TLD.1000
Also available separately
Article no. Article name Description
L14003939 CT.10/20 Cylinder trolley
L14003951 PR-TG.10 W21,8-14 10 bar (150 psi) pressure reducer
L13005015 PA-1/LT.10 Manifold gauge 10 bar (150 psi)
L13004971 HDS-A-G+G-3000-Y Charging hose
L13002909 HDS-J-G+G-3000-Y Charging hose
L14002502 QC-134a-BM Low pressure quick-coupler
L14002503 QC-134a-RM High pressure quick-coupler
L14003969 LOKTRACE KA.DC Dust cover
06 | LEAK DETECTION
TRACE GAS LEAK DETECTION KITS
CARRY CASE KIT FOR TRACE GAS LEAK DETECTION IN REFRIGERATION AND AIR CONDITIONING SYSTEMS
Complete kit for trace gas leak detection in refrigeration and air conditioning systems, in a robust carry case.
Pressure reducer connection: W21,8-14 LH with left-handed thread.
Article no. Article name Description
L13005038 LOKBOX TG-HVAC-500 with LOKTRACER TLD.500
L13004643 LOKBOX TG-HVAC-1000 with LOKTRACER TLD.1000
Also available separately
Article no. Article name Description
L14003411 PR-H2.50 50 bar (750 psi) pressure reducer
L13005037 PA-1/LT.50 Manifold gauge 50 bar (750 psi)
L13004971 HDS-A-G+G-3000-Y Charging hose
L13002909 HDS-J-G+G-3000-Y Charging hose
FITTING M12X1,5 M - 1/4" SAE M
To connect LOKTRACE leak detection kit charging hoses with quick-couplers for HFO-1234yf.
Article no. Article name
L14004189 A-1234
QUICK- COUPLER FOR HFO-1234YF
Enables the connection of LOKTRACE leak de-tection kits in vehicle air conditioning systems with the refrigerant HFO-1234yf.
An A-1234 fitting is also required to connect to the charging hose of the LOKTRACE leak detection kit.
Tested according to SAE J2888 (1234yf)
Connection: M12 x 1.5
Article no. Article name Description
L14004188 QC-1234YF-BF Low pressure quick-coupler
L14004187 QC-1234YF-RF High pressure quick-coupler
LEAK DETECTION | 07
ELECTRONIC REFIGERANT LEAK DETECTOR
Suitable for HC, PFC and HFC refrigerants.
Made in Germany.
Sensitivity <= 1 g/year (in accordance with EN14624, SAEJ1627 and E85-22).
Incremental approximation of major leaks (zero tracking).
Automatic sensor cleaning.
No pump or filter due to diffusion technology.
Integrated LED light.
Acoustic and optical alarm.
Conforms to EC regulations 1516/2007 and DIN 378.
Article no. Article name
L13005243 LOKATOR RLD5
Technical data
Time to operability: < 60 s
Reaction time: 1 to 2 s
Operating time: approx. 5 h
Power supply: rechargeable batteries
Also available separately
Article no. Article name Description
L14004043 PA-TLD.500 Mains charger
REFRIGERANT LEAK DETECTOR
08 | LEAK DETECTION
NITROGEN PRESSURE TESTING KIT 10 bar (150 psi)
Complete kit for carrying out pressure testing up to 10 bar (150 psi) in refrigeration and air conditioning systems.
Article no. Article name
L13001108 DF-060
Also available separately
Article no. Article name Description
L14000039 PR-N2.10 Nitrogen pressure reducer 10 bar (150 psi)
L14000371 SVR Quick connector
for nitrogen pressure reducer
L14000038 DF-060-02 Nitrogen cylinder 2 litre (filled)
L13002154 HDS-A-G+W-1500-Y Charging hose
LEAK DETECTION SPRAY
For the detection of leaks in tube lines under pressure.
Non-flammable, anti-corrosive, tolerated by the skin.
DIN-DVGW tested.
Article no. Article name Contents
L14000823 LS-400 400 ml
NITROGEN PRESSURE TESTING KIT 50 bar (750 psi)
Complete kit for carrying out pressure testing up to 50 bar (750 psi) in refrigeration and air conditioning systems.
Article no. Article name
L13004644 N2-KS-50
Also available separately
Article no. Article name Description
L13004645 N2-DMS Nitrogen pressure reducer kit
including quick connector and hose
L14003405 PR-N2.50 Nitrogen pressure reducer 50 bar (750 psi)
L14000371 SVR Quick connector
for nitrogen pressure reducer
L14000038 DF-060-02 Nitrogen cylinder 2 litre (filled)
L13002154 HDS-A-G+W-1500-Y Charging hose
NITROGEN PRESSURE TESTING
LEAK DETECTION | 09
10 | RECOVERY, EVACUATION, CHARGING
RECOVERY, EVACUATION, CHARGINGVACUUM METER
VACUUM METER V80
0 1
PAGE 11 RECOVERY UNITS
PAGE 12 VACUUM PUMP STATIONS
PAGE 13 VACUUM PUMPS
PAGE 14 MANIFOLD GAUGES
PAGE 16 GAUGES & VACUUM METERS
PAGE 18 CHARGING DEVICE
PAGE 19 DIGITAL SCALES
PAGE 20 CHARGING HOSES
RECOVERY UNITS
Compact recovery unit for all common, non-flammable refrigerants (excluding NH3).
Made in USA.
Oil-free 1/2 PS compressor.
Switches off automatically after process ends.
With Technical Inspection Association-type test.
Article no. Article name
L14003138 RG-69000-220 TÜV
Technical data
Recovery capacity (gaseous): 30 kg/h (66.14 lbs/h)
Recovery capacity (liquid): 84 kg/h (185.2 lbs/h)
Connections: 1/4" SAE
Safety pressure limiter: 38 bar (550 psi)
Pressures in: bar and psi
Power supply:: 220/240 V – 50/60 Hz
L x H x D in mm (inch): 432 x 254 x 305 (17 x 10 x 12)
Weight: 16 kg (2.2 lbs)
RECOVERY, EVACUATION, CHARGING | 11
RECOVERY UNITSCOMPACT RECOVERY UNIT
World‘s smallest, fully adequate recovery unit for all common, non-flammable refrigerants (excluding NH3).
Safety pressure limiter with automatic reset function.
Simple 2-valve control.
Oil-free compressor for the disposal of liquid and gaseous refrigerants.
Integrated dirt filter.
Article no. Article name
L14004102 RG3000E
Technical data
Recovery capacity (gaseous): 7 kg/h (15.4 lbs/h)
Recovery capacity (liquid): 40 kg/h (88.2 lbs/h)
Connections: 1/4" SAE
Safety pressure limiter: 38 bar (550 psi)
Pressures in: bar and psi
Power supply:: 220/240 V – 50/60 Hz
L x H x D in mm (inch): 310 x 235 x 175 (12.2 x 9.25 x 6.9)
Weight: 8 kg (17.64 lbs)
VACUUM PUMP STATION WITH VACUUM PUMP DIP-402
For the evacuation and charging of refrigerant circuits.
2-stage vacuum pump DIP-402 (80 l/min).
Gauge with 80 mm (3.15") diameter.
Compartment for refrigerant scales.
2 charging hoses 1.5 m (39.4").
Article no. Article name Low pressure gauge High pressure gauge
L13005289 VPS-DIP-402/MN-11/MH-11/V80 R290, R600a R290, R600a
Technical data
Power supply: 220/240 V – 50/60 Hz
L x H x D in mm (inch): 430 x 270 x 360 (16.93 x 10.6 x 14.17)
Weight: 18.5 kg (40.78 lbs)
For the evacuation and charging of refrigerant circuits.
2-stage vacuum pump RD.2D (35 l/min).
Gauge with 80 mm (3.15") diameter.
Compartment for refrigerant scales.
2 charging hoses 1.5 m (39.4").
Article no. Article name Low pressure gauge High pressure gauge
L13001863 VPS-RD.2D/MN-01/MH-01/V80 R600a R600a
L13005316 VPS-RD.2D/MN-11/MH-11/V80 R290, R600a R290, R600a
Article no. Article name Low pressure gauge High pressure gauge
L13001851 VPS-RD.2D/MN-01/MN-07/V80 R600a R134a
Technical data
Power supply: 220/240 V – 50/60 Hz
L x H x D in mm (inch): 345 x 265 x 360 (13.6 x 10.4 x 14.2)
Weight: 12.2 kg (26.9 lbs)
12 | RECOVERY, EVACUATION, CHARGING
VACUUM PUMP STATIONSVACUUM PUMP STATION WITH VACUUM PUMP RD.2D
VACUUM PUMP RD.2D
Has a gas ballast valve and thermal overload protection.
Article no. Article name
L14002963 RD.2D
Technical data
Capacity: 35 l/min
Final partial pressure: 0.01 mbar (0.15 psi)
Connection power: 120 Watt
Power supply: 220/240 V – 50/60 Hz
L x H x D in mm (inch): 247 x 110 x 210 (9.72 x 4.33 x 8.27)
Weight:: 6 kg (13.23 lbs)
VACUUM PUMP DIP-402
Has a gas ballast valve and thermal overload protection.
Article no. Article name
L14001731 DIP-402
Technical data
Capacity: 80 l/min
Final partial pressure: 0.01 mbar (0.15 psi)
Connection power: 300 Watt
Power supply: 220/240 V – 50/60 Hz
L x H x D in mm (inch): 285 x 150 x 260 (11.22 x 5.9 x 10.24)
Weight:: 10 kg (22.05 lbs)
RECOVERY, EVACUATION, CHARGING | 13
MINERAL VACUUM PUMP OIL
1 litre mineral vacuum pump oil. Article no. Article name For vacuum pumps
L13003161 M032 RD.2D
L14000010 M068 DIP-402
VACUUM PUMPS
1-VALVE MANIFOLD GAUGES
Gauge with 80 mm (3.15") diameter.
Article no. Article name For refrigerant
L13002106 PA-1/MN-01 R600a
2-VALVE MANIFOLD GAUGES
Gauges with 80 mm (3.15") diameter.
Article no. Article name For refrigerant
L13001562 PA-2/MN-01/MH-01 R600a
5-VALVE MANIFOLD GAUGES
Gauges with 80 mm (3.15“) diameter and V80 vacuum meter.
Article no. Article name Low pressure gauge High pressure gauge
L13001542 PA-5/MN-01/MH-01/V80 R600a R600a
Article no. Article name Low pressure gauge 1 Low pressure gauge 2
L13001549 PA-5/MN-01/MN-02/V80 R600a R22, R134a, R404A, R407C
14 | RECOVERY, EVACUATION, CHARGING
MANIFOLD GAUGES
BASIC BODIES FOR MANIFOLD GAUGES
Basic bodies for manifold gauges. PA-1/N/GK PA-1/H/GK
PA-2/GK PA-5/GK
Article no. L14000832 L14000833 L14000835
Article name PA-1/N/GK PA-2/GK PA-5/GK
Description Basic body for Basic body for Basic body for
1-valve manifold gauge ND 2-valve manifold gauge 5-valve manifold gauge
Article no. L14000837
Article name PA-1/H/GK
Description Basic body for
1--valve manifold gauge HD
RECOVERY, EVACUATION, CHARGING | 15
16 | RECOVERY, EVACUATION, CHARGING
GAUGES & VACUUM METERS
VACUUM METER
Precision scale from 0 to 1000 mbar.
Diameter 80 mm (3.15").
Connection thread 1/8" NPT.
Article no. Article name
L14000704 V80
GAUGES
Adjustable and vibration-free
Diameter 80 mm (3.15")
Connection thread 1/8" NPT
01 02 07 08 11
R600a R22 R134a R410A R290
R134a R600a
R404A
R407C
Article no. Article nameScale
[ bar ]Scale [ psi ]
L14000690 MN-01 - 1 to 3 -14.5 to 42
L14000691 MN-02 - 1 to 15 -14.5 to 215
L14000696 MN-07 - 1 to 10 -14.5 to 140
L14000779 MN-08 - 1 to 30 -14.5 to 450
L14002928 MN-11 - 1 to 10 -14.5 to 140
Article no. Article nameScale
[ bar ]Scale [ psi ]
L14000697 MH-01 - 1 to 10 -14.5 to 140
L14000698 MH-02 - 1 to 35 –
L14000703 MH-07 - 1 to 30 -14.5 to 450
L14000778 MH-08 - 1 to 50 –
L14002929 MH-11 - 1 to 30 -14.5 to 430
RECOVERY, EVACUATION, CHARGING | 17
COMPLETE DIAPHRAGM SET FOR MANIFOLD GAUGES
Consists of:
Diaphragm
Spring
Brass head
Brass ring
Article no. Article name
L14000137 WK-G03
DIGITAL VACUUM METER
For simple and precise vacuum metering between 0 mbar and 16 mbar.
Trend display (rising or sinking pressure) where there is more than 16 mbar.
Auto switch off after 10 minutes, if the measurement value is greater than 16 mbar.
Delivered in a robust plastic case.
Article no. Article name
L14001096 VG64
Technical data
Measuring range: 0 to 16 mbar (0 to 12000 Microns)
Resolution: 0.001 mbar (where measurement value < 0.260 mbar)
1 micron (where measurement value < 200 microns)
Accuracy: ± 10 % (where measurement value < 1000 microns)
Display updates: 2 x per second
Units: [micron], [psi], [inHg], [mbar] [Pascal], [torr], [mTorr]
Overpressure protection: up to 20 bar (290 psi)
Connections: 1/4" SAE
Working temperature: 2°C to 52°C (35°F to 125°F)
Power supply: 1 x 9 V alkaline battery (not included)
Operation time: approx. 35 h
Dimensions, vacuum meter (L x W x H): 140 x 76 x 32 mm (5.51" x 2.99" x 1.26")
Weight, vacuum meter: 190 g (6.7 oz)
DIAPHRAGM SET FOR MANIFOLD GAUGES
Article no. Article name
L14000274 WK-G04
VALVE SET FOR MANIFOLD GAUGES
Article no. Article name Description
L14000493 WK-07H HIGH
L14000494 WK-07L LOW
L14000272 WK-07R REF
L14000492 WK-07V VAC
Portable charging device for precise charging of refrigerant circuits.
Article no. Article name
L13005734* LOKBOX FE charging device
Also available separately
Article no. Article name Description
L14003840 DSL 5000 Compact digital scales
L14000009 16-C Quick-coupler
L13005321 EV-600 Extraction valve
L13000953 FE-600a-SK PVC hose - 1.1 m (3.61")
L13000950 FE-600a-ESK Discharge hose - 5 m (16.4")
L14000244 121/T-VK Ball valve
L13001971 HDS-A-G+G-260 Charging hose
L14000131 NRV-6 Non-return valve
L13001521 HFFB-1 Holder for liquid charging
*Suitable refrigerant cartridges can be found on page 27.
18 | RECOVERY, EVACUATION, CHARGING
CHARGING DEVICECHARGING DEVICE
COMPACT DIGITAL SCALES
For precise removal of refrigerant from cartridges or aluminium compressed gas cylinders.
Developed especially for VULKAN Lokring by SOEHNLE PROFESSIONAL, the leading company in measurement and weighing technology.
Straightforward operation with three buttons.
Easily readable LCD display: Digit height 15 mm (0.59").
Without zero-tracking.
Without automatic switch off.
Unit toggle switch kg/lb.
Easy-care ABS plastic housing.
Battery operated 2 x 1.5V AA batteries*.
Working temperature: 0°C to 40°C (32°F to 104°F).
Article no. Article name
L14003840 DSL 5000
Technical data
Weighing range:: 5,000 g (176.37 oz)
Intervals: 0.5 g (0.02 oz)
Platform size: ø120 mm (4.72")
Dimensions (L x W x H): 140 x 190 x 45 mm (5.51" x 7.48" x 1.77")
Weight: 500 g (17.64 oz)
* (not included)
DIGITAL SCALES
For the exact determination of refrigerant removal amounts or refrigerant charging amounts.
Robust weighing platform with overload protection.
Separate operating and display unit with large display.
Saves last weight display.
Easy adjustment through integrated spirit level.
USB connection.
Delivered in a robust plastic case.
Article no. Article name
L14001836 SC 98210
Technical data
Weighing range: 110 kg (242.51 lbs)
Resolution: 0.01 kg (0.02 lbs)
Weight units: [kg], [lbs], [oz]
Accuracy: ± 0.01 kg, ± 0.01 lbs, ± 0.16 oz
Working temperature range: 0°C to 49°C (32°F to 120°F)
Platform size: 220 x 220 mm (8.66" x 8.66")
Power supply: 9 V alkaline battery
RECOVERY, EVACUATION, CHARGING | 19
DIGITAL SCALES
20 | RECOVERY, EVACUATION, CHARGING
CHARGING HOSE; 1/4" SAE CONNECTIONS (1 X STRAIGHT, 1 X 45°) AND BALL VALVE
Connections
1/4" SAE F straight with valve opener and ball valve.
1/4" SAE F with 45° elbow.
Article no. Article name Description
L13001841 HDS-A-G+W-900-B-V 900 mm (35.43"), blue
L13002048 HDS-A-G+W-900-R-V 900 mm (35.43"), red
L13001889 HDS-A-G+W-900-Y-V 900 mm (35.43"), yellow
L13001869 HDS-A-G+W-1500-B-V 1500 mm (59.06"), blue
L13001868 HDS-A-G+W-1500-R-V 1500 mm (59.06"), red
L13001867 HDS-A-G+W-1500-Y-V 1500 mm (59.06"), yellow
L13001843 HDS-A-G+W-1800-B-V 1800 mm (70.87"), blue
L13001840 HDS-A-G+W-1800-R-V 1800 mm (70.87"), red
L13001919 HDS-A-G+W-1800-Y-V 1800 mm (70.87"), yellow
CHARGING HOSE; 1/4" SAE CONNECTIONS (STRAIGHT)
Connections
1/4" SAE F straight with valve opener.
1/4" SAE F straight.
Article no. Article name Description
L13002285 HDS-A-G+G-600-B 600 mm (23.62"), blue
L13002286 HDS-A-G+G-600-R 600 mm (23.62"), red
L13002287 HDS-A-G+G-600-Y 600 mm (23.62"), yellow
CHARGING HOSE; 1/4" SAE CONNECTIONS (1 X STRAIGHT, 1 X 45°)
Connections
1/4" SAE F with 45° elbow and valve opener.
1/4" SAE F straight.
Article no. Article name Description
L13002304 HDS-A-G+W-600-B 600 mm (23.62"), blue
L13002305 HDS-A-G+W-600-R 600 mm (23.62"), red
L13002306 HDS-A-G+W-600-Y 600 mm (23.62"), yellow
L13002111 HDS-A-G+W-900-B 900 mm (35.43"), blue
L13002018 HDS-A-G+W-900-R 900 mm (35.43"), red
L13002113 HDS-A-G+W-900-Y 900 mm (35.43"), yellow
L13002023 HDS-A-G+W-1500-B 1500 mm (59.06"), blue
L13002024 HDS-A-G+W-1500-R 1500 mm (59.06"), red
L13002154 HDS-A-G+W-1500-Y 1500 mm (59.06"), yellow
L13002114 HDS-A-G+W-1800-B 1800 mm (70.87"), blue
L13002115 HDS-A-G+W-1800-R 1800 mm (70.87"), red
L13002116 HDS-A-G+W-1800-Y 1800 mm (70.87"), yellow
CHARGING HOSES
REPLACEMENT SEALS MADE OF PLASTIC
Article no. Article name
L14001360 KD-1/4''
L14001361 KD-3/8"
REPLACEMENT SEALS MADE OF RUBBER
Article no. Article name
L14000407 GD-1/4"
L14000408 GD-3/8"
VALVE OPENER
Article no. Article name
L14000575 D19302
VALVE CORE REMOVER WITH 3 VALVE CORES
Article no. Article name
L14000013 E-6200
HOSE ADAPTER FOR R410A
Article no. Article name Thread
L14001083 HA-R410A 1/4" SAE M x
5/16" SAE F
VALVE CORE
Article no. Article name
L14000113 E-6200a
CHARGING HOSE ACCESSORIES
121-RG-410A
BALL VALVES
Ball valves. Article no. Article name Thread
L14000447 121-RG-4 1/4" SAE M x 1/4" SAE F
L14003205 121-RG-410A 1/4" SAE M x 5/16" SAE F
L14000783 121-S4 1/4" SAE M x 1/4" SAE M
L14000583 270015 1/4" SAE M x 1/8" NPT F
RECOVERY, EVACUATION, CHARGING | 21
22 | QUICK-COUPLERS
QUICK-COUPLERS
QAA-04 QUICK-COUPLER FOR STRAIGHT TUBES
QCF-04 QUICK-COUPLERU1-4K SCREW-IN CONNECTION PIECE
QCM-04 SEALING NIPPLE
HDS-A-G+G CHARGING HOSE
QUICK-COUPLER SYSTEM
PAGE 23 QUICK-COUPLERS
EXTENSION FOR R134a HIGH PRESSURE SERVICE PORT
To extend high pressure service ports that are difficult to access e.g. for BMW E60 (5 Series), Volvo S80 and some Ford models.
Article no. Article name
L14002876 QC-134A
R134a QUICK-COUPLERS
Connection M14 x 1,5.
Tested according to SAE J497 (R134a).
Article no. Article name Description
L14002485 QC-134A-BF Low pressure quick-coupler
L14002484 QC-134a-RF High pressure quick-coupler
1234YF QUICK-COUPLER, CONNECTION M12 X 1.5
Enables the connection of LOKTRACE leak detecti-on kits in vehicle air conditioning systems with the refrigerant HFO-1234yf.
An A-1234 fitting is also required to connect to the charging hose of the LOKTRACE leak detection kit.
Tested according to SAE J2888 (1234yf).
Connection: M12 x 1,5
Article no. Article name Connections
L14004188 QC-1234YF-BF Low pressure quick-coupler
L14004187 QC-1234yf-RF High pressure quick-coupler
R134a QUICK-COUPLERS
Connection 1/4" SAE M.
Tested according to SAE J497 (R134a).
Article no. Article name Description
L14002502 QC-134A-BM Low pressure quick-coupler
L14002503 QC-134a-RM High pressure quick-coupler
QUICK-COUPLERS | 23
QUICK-COUPLERS
QUICK-COUPLER FOR SCHRADER VALVES
To open Schrader valves without a loss of refrigerant.
When the quick-coupler is removed, the hose is sealed by the valve.
No valve opener is required in the end of the hose.
Quick-couplers 26-C and 27-C are suitable for R410A.
Article no. Article name Description
L14000009 16-C 1/4" SAE M, straight
L14000053 17-C 1/4" SAE M, 90° angle
L14002677 26-C 5/16" SAE M, straight
L14002678 27-C 5/16" SAE M, 90° angle
Available separately
L14000317 16-C/RM Knurled nut for 16-C and 17-C
L14000264 OR-16C O-Ring for 16-C and 17-C
L14000265 16-C/D Seal for 16-C and 17-C
L14002926 OR-26C O-Ring for 26-C and 27-C
L14002927 26-C/D Seal for 26-C and 27-C
L14002925 26-C/RM Knurled nut for 26-C and 27-C
QUICK-COUPLER FOR STRAIGHT TUBES
For clamping straight tubes.
Seals at tube intersection and around entire tube circumference.
Suitable for pressure tests and evacuation as well as refrigerant charging.
Article no. Article name For ø
L14001655 PCV-600-2-HNBR 6 mm
L14001849 PCV-630-2-HNBR 6,35 mm (1/4")
Technical data
Vacuum-tight up to 0.013 mbar (10 micron)
Pressure resistant up to 45 bar (650 psi)
Working temperature -20°C to 80°C (-4°F to 176°F)
Minimum tube length / minimum tube wall thickness 19 mm (3/4") / 0.8 mm (0.03")
QUICK-COUPLER FOR STRAIGHT TUBES
For clamping straight tubes.
Seals around entire tube circumference.
Ensures maximum flow when flushing air conditioning systems.
Suitable for pressure tests and evacuation as well as refrigerant charging.
Article no. Article name For ø
L13002869 SK-40-2 2 mm
L13001369 SK-40-5 5 mm
L13001368 SK-40-6 6 mm
L13001406 SK-40-6,35 6.35 mm (1/4")
L13001431 SK-40-8 8 mm (5/16")
L13001312 SK-40-10 10 mm
Technical data
Vacuum-tight up to 0.013 mbar (10 micron)
Pressure resistant up to 52 bar (754 psi)
24 | QUICK-COUPLERS
QUICK-COUPLERS
QUICK-COUPLER FOR STRAIGHT TUBES
The two adapters have the same structure, but differ in the quick-coupler inserts and seals used.
Article no. Article name For ø
L14000030 QAA-04 6 mm
L14000142 QAA-05 8 mm (5/16")
Available separately
L14000082 QAI-04 Quick-coupler insert
L14000028 QAI-05 Quick-coupler insert
L14000083 QAG-04 Seal
L14000021 QAG-05 Seal
QUICK-COUPLER FOR SEAL NIPPLE QCM
Anvil with internal thread. Article no. Article name Connection
L14000045 QCF-04 1/4" NPT F
L14001808 QCF-04-H.NBR Rc 1/4"
SEAL NIPPLE FOR QUICK-COUPLER QCF
Connection adapter. Article no. Article name Connection
L14000046 QCM-04 1/4" NPT F
L14001795 QCM-04-H.NBR Rc 1/4"
QUICK-COUPLERS | 25
26 | REFRIGERANTS
REFRIGERANTSRECOVERY
PAGE 27 REFRIGERANTS
EV-600a EXTRACTION VALVE
HFFB-1 HOLDER FOR LIQUID CHARGING
ADAPTER FOR NON-FLAMMABLE REFRIGERANT
Article no. Article name Connections
L14000689 W21,8-14 W21,8-14 x 1/4" SAE M
R290 REFRIGERANT CARTRIDGE
Article no. Article name Contents
L14004254 REF-R290-03* 370 g (13.05 oz)
*NOTE: Cartridge does not fit into the carrying case of LOKBOX FE (L13005734).
R600a REFRIGERANT CARTRIDGE
Article no. Article name Contents
L14000125 REF-R600a** 420 g (14.82 oz)
**NOTE: Cartridge fits into the carrying case of LOKBOX FE (L13005734).
HOLDER FOR LIQUID CHARGING
Article no. Article name
L13001521 HFFB-1
EXTRACTION VALVE FOR R290 CARTRIDGES
Article no. Article name
L14004255 EV-290-03
EXTRACTION VALVE FOR R600a CARTRIDGES
Article no. Article name
L13005321 EV-600a
REFRIGERANTS | 27
REFRIGERANTS
LIT 11TC INFRA-RED THERMOMETER
INFRA-RED THERMOMETER
PAGE 29 INFRA-RED THERMOMETER
PAGE 30 DIGITAL QUICK RESPONSE THERMOMETER
PAGE 31 PROBE
PAGE 31 TEMPERATURE LOGGER
28 | MEASUREMENT AND DIAGNOSTIC DEVICES
MEASUREMENT AND DIAGNOSTIC DEVICES
°C
For precise, non-contact temperature measurement on non-reflective surfaces.
With additional K-type thermocouple.
Article no. Article name
L14002969 LIT 11TC
Technical data
Optical resolution: 11:1
Temperature range: -60°C to 500°C (-76°F to 932°F)
Resolution: 0.1°C (0.1°F)
Accuracy: ± 1°C (1.8°F)
Emission coefficient: 0.95 adjustable
K-type thermocouple: yes (probe included)
Probes included in the temperature range: 14°C to 250°C (57°F to 482°F)
Total temperature range: -64°C to 1400°C (-83°F to 2552°F)
Temperature accuracy: ± 1% or 2°C (3.6°F)
Display: LCD, lit
Automatic switch off: Yes
Power supply: 2 x AA batteries (included)
Weight: 179 g (6.31 oz)
Dimensions: 175 x 39 x 71 mm (6.89" x 1.54" x 2.80")
INFRA-RED THERMOMETER
MEASUREMENT AND DIAGNOSTIC DEVICES | 29
INFRA-RED THERMOMETER
K GTH-1150 Carry case kit includes probe
Digital quick response thermometer
Probe GTF-300 GS
Alkaline battery 9 V
Plastic carry case
Digital quick response thermometer, freely combinable with the probes shown on the right.
Digital quick response thermometer
Alkaline battery 9 V
K GTH-1160 Carry case kit includes probe
Digital quick response thermometer
Probe GTF-300 GS
Alkaline battery 9 V
Plastic carry case
Digital quick response thermometer, freely combinable with the probes shown on the right.
Digital quick response thermometer
Alkaline battery 9 V
K GTH-1100/2DIF Carry case kit includes probe
Digital quick response thermometer
Probe GTF-300 GS
Alkaline battery 9 V
Plastic carry case
Digital quick response thermometer, freely combinable with the probes shown on the right.
Digital quick response thermometer
Alkaline battery 9 V
Article no.
Article name
L13002102
K GTH-1150
L13001858
K GTH-1160
L13002103
K GTH-1100/2DIF
Probe (not included): 1 1 2
Number of measuring ranges: 1 2 1
Measuring range 1: -50°C to 1150°C -50°C to 1150°C -50°C to 1150°C
Measuring range 2: – -50°C to 199.9°C –
Accuracy of measuring range 1: ± 1.0%: 20°C to 550°C; 920°C to 1150°C
± 1.5%: 550°C to 920°C
± 1.0%: 20°C to 550°C; 920°C to 1150°C
± 1.5%: 550°C to 920°C
± 1.0%: 20°C to 550°C; 920°C to 1150°C
± 1.5%: 550°C to 920°C
Accuracy of measuring range 2: – ± 1.0%: 20°C to 199°C –
Resolution of measuring range 1: 1°C 1°C 1°C
Resolution of measuring range 2: – 0,1°C –
Temperature difference measurement: No No Yes
Working temperature: 0°C to 45°C (32°F to 113°F) 0°C to 45°C (32°F to 113°F) 0°C to 45°C (32°F to 113°F)
Power supply: 1 x 9 V alkaline battery 1 x 9 V alkaline battery 1 x 9 V alkaline battery
Dimensions (L x W x H): 106 x 67 x 30 mm (4.17" x 2.64" x 1.18") 106 x 67 x 30 mm (4.17" x 2.64" x 1.18") 150 x 86 x 30 mm (5.91" x 3.89" x 1.18")
Weight (including battery): 150 g (5.29 oz) 150 g (5.29 oz) 230 g (8.11 oz)
Article no.
Article name
L14000527
GTH-1150
L14000817
GTH-1160
L14000745
GTH-1100/2DIF
Quick response measurement of surfaces, liquids, soft plastic materials, air, gases, very small objects etc. Only functional with freely selectable probes.
GTH-1150 GTH-1160 GTH-1100/2DIF
DIGITAL QUICK RESPONSE THERMOMETER
30 | MEASUREMENT AND DIAGNOSTIC DEVICES
DIGITAL QUICK RESPONSE THERMOMETER
PROBE FOR DIGITAL QUICK RESPONSE THERMOMETER
Article no. L14000777 L14001898 L14000889
Article name GES 1000 GOF 500 GTF-300 GS
Technical data
Measuring range: -50°C to 550°C (-58°F to 1022°F) -265°C to 500°C (-445°F to 932°F) -65°C to 400°C (-85°F to 752°F)
Area of application:: Soft plastic materials Gases, liquids and Gases, solid surfaces
and liquids solid surfaces (not just liquids)
Length: 1 m (3.28") 1 m (3.28") 1 m (3.28")
TEMPERATURE LOGGER
Standalone USB-based mini-data logger for
measurements in critical climatic conditions.
Performance features
Delayed start or recording review via a push button.
Temperature alarm with optical display on request.
User can select stop when memory is full, or memory roll-over for continuous recording.
Real-time monitoring.
USB connection.
Windows compatible software.
Scope of supply
SL 300 T temperature logger.
Windows-based software compatible with 98SE, ME, 2000, XP, VISTA 32-bit Version (not compatible with Windows 95, NT, VISTA 64-bit Version, Windows 7 and Windows 10).
USB connection cable.
3 V alkaline batteries.
Article no. Article name Description
L14003035 SL 300 T Temperature logger
Technical data
Measuring points 44,344
Sampling rate 1 second to 18 hours
Alarm Over and under-range alarm
Temperature measuring range -40°C to 85°C (-40°F to 185°F)
Temperature accuracy ± 0.5°C (1°F)
Temperature resolution 0.01°C (0.02°F)
Calibration One-point offset calibration through software
Time Accuracy ± 100 ppm at 24°C (75.2°F)
Dimensions (L x W x H) 76 x 40 x 15 mm (2.99" x 1.57" x 0.59")
Power supply 3 V lithium battery (CR 2035)
Battery lifespan approx. 6 years
PROBE AND TEMPERATURE LOGGER
MEASUREMENT AND DIAGNOSTIC DEVICES | 31
SCREW-ON CONNECTION PIECE WITH SCHRADER VALVE
Article no. Article name Connections
L14000097 AVU-44 1/4" SAE F - 1/4" SAE M*
*(with Schrader valve)
SCREW-ON CONNECTION PIECE
Article no. Article name Connections
L12002408 U1-5K 1/4" SAE F - Rc 1/4"
L12002418 U1-7K Rc 1/4" - 1/4" SAE M
L14000116 U3-4A 1/8" NPT F - 1/4" SAE M
L14000092 U3-4B 1/4" NPT F - 1/4" SAE M
ELBOW CONNECTORS
Article no. Article name Connections
L14000812 ES4-44 1/4" SAE F - 1/4" SAE M
L14000300 ES4-66 3/8" SAE F - 3/8" SAE M
SCREW-IN CONNECTION PIECE
Article no. Article name Connections
L14000047 U2-4 1/4" SAE M - 1/4" SAE M
L14000322 U1-4A 1/4" SAE M - 1/8" NPT
L14000091 U1-4B 1/4" SAE M - 1/4" NPT
L14000023 U1-4C 1/4" SAE M - 3/8" NPT
SLEEVES
Article no. Article name Connections
L14000445 U4-4 1/4" SAE F - 1/4" SAE F
FITTINGS | 33
FITTINGS
COMPRESSOR
PAGE 35 R600a COMPRESSORS
PAGE 35 COMPRESSOR PRESSURE TESTING DEVICE
34 | COMPRESSORS
COMPRESSORS
R600a COMPRESSORS
For refrigeration and freezer devices.
Complete with all electrical parts as well as rubber feet and humidifier tray.
The compressors are compatible with other types of compressors (see compatibility chart).
Power supply: 220/240 V, 50 Hz.
The compatibility list was created based on the manufacturer information. We therefore recommend that only the compressors specified are used; and exclude all liability for consequential damages where any other compressors are used.
Article no. L14000485 L14000483 L14000482
Article name C-R600a-1/4 C-R600a-1/6 C-R600a-1/8
Technical data
PS: 1/4 1/6 1/8
Refrigeration capacity kcal/h: 100 116 104
Refrigeration capacity watts: 233 135 121
Volumetric delivery cm3: 14.28 7.96 7.23
Nom. power consumption watts: 175.0 102.0 91.0
Dimensions L x W x D mm (inch): 220 x 250 x 180 (8.66 x 9.84 x 7.09) 180 x 220 x 150 (7.09 x 8.66 x 5.91) 170 x 230 x 150 (6.69 x 9.06 x 5.91)
Weight kg (lbs): 10.7 (23.6) 7.7 (17.0) 7.1 (15.7)
Compatible with
Aspera NBM1118Y BPK1111Y BPK1084Y
Danfoss NLE15K/NL15K TLES9K/TLS9K TLES7K/TLS7K
Elektrolux HP16AH HL99AH/HL99AA/ HL70AH/HL70AA/HL67AH
HL90AH/HL90AA
Matsushita SD65E
Embraco EMI40CEP/EMI40CSC EMI30CEP/EMI30CSC
COMPRESSOR PRESSURE TESTING DEVICE
To check the performance of compressors.
Scope of supply
Pressure vessel with gauge (16 bar, filled with glycerine).
adjustable safety valve.
Charging hose NFS-A-G+W-1500-B.
Case.
Article no. Article name
L13002291 KP-DG
COMPRESSORS | 35
COMPRESSORS AND COMPRESSOR PRESSURE TESTING DEVICE
DIGITAL CALIPER
PAGE 37 USEFUL ACCESSORIES
MEASURING RANGE 0 TO 150 MM (0" TO 5.91")
MEASURING RESOLUTION 0.01 MM (0.001")
36 | USEFUL ACCESSORIES
USEFUL ACCESSORIES
TUBE CUTTER: 3 TO 28 MM (5/32" TO 1 1/8")
With roller bearing technology, which allows easy and fast cutting of tubes.
Diameter range: 3 to 28 mm (5/32" to 1 1/8").
Article no. Article name Description
L14003600 TC3-28 Tube cutter
L14003603 CW3-28 Cutting blade
COLD RATCHET
Cold ratchet with usable spanners on both sides
for 9/16" and 1/2" hexagon heads and 1/4"
and 3/16" squares.
Article no. Article name
L14001251 KN-70081
FLARING TOOL
For easy and fast expansion of soft copper, aluminium or brass tubes with metric or imperial diameters.
Suitable for tube outer diameters of 5 to 16 mm (3/16" to 5/8").
Article no. Article name
L14002017 VRC2.D
USEFUL ACCESSORIES | 37
USEFUL ACCESSORIES
38 | USEFUL ACCESSORIES
USEFUL ACCESSORIESDIGITAL CALIPER
Measuring range: 0 to 150 mm (0" to 5.91") Measurement units: Metric / imperial.
Article no. Article name
L14003948 DGMS 150
COOLING SPRAY
In spray cans, for testing thermostats up to -50°C (-58°F).
Article no. Article name Contents
L14000311 BR-400 400 ml
REPAIR KIT
For sealing aluminium evaporators. Temperature resistant from -35°C to 120°C (-31°F to 248°F) and pressure resistant up to 84 N/mm2.
Article no. Article name Contents
L14000688 AL-115 57 g (2 oz)
FIN COMB SET
For smoothing and cleaning of evaporator and condenser fins.
Article no. Article name
L14001031 FCR6
40 | ONLINE-SERVICE
FOR FURTHER INFORMATION, PLEASE REFER TO OUR WEBSITE WWW.VULKAN.COM.
ONLINE-SERVICE
AUTHORISED DISTRIBUTORSwww.vulkan.com/en-us/lokring/contact/
VIDEOS www.vulkan.com/en-us/lokring/videos/
TECHNICAL DOCUMENTATION AND SUBMITTALwww.vulkan.com/en-us/lokring/downloads/technical-documentation-and-submittal
CATALOGUES & BROCHURES www.vulkan.com/en-us/lokring/downloads/
CERTIFICATES www.vulkan.com/en-us/lokring/downloads/certificates/
IMPRINT | 41
IMPRINT
VALIDITY CLAUSE The LOKRING® tube connection technology represents a proven method of producing hermetically sealed metal-to-metal tube connections. The LOKRING® tube connections are mainly used in the refrigeration and air conditioning industries. The use of LOKRING® tube connection technology in other fields is to be discussed with VULKAN Lokring. VULKAN Lokring as the supplier is responsible for the qualitative delivery of the tube connections and tools which are ordered from this catalogue.
The purchaser is responsible for the use of the LOKRING® tube connections and tools as directed. The assembly has to be done accordingly to the instructions and exclusively with original LOKRING® parts. The present Vehicle Air Conditioning catalogue shall replace all previous editions, any previous printings shall no longer be valid. The data contained in this catalogue refers to the valid state of affairs in time of the copy deadline. Any changes due to technical progress are reserved.
Status: 08/2018
All duplication, reprinting and translation rights are reserved. Further remarks for the LOKRING® assembly are available on request.
Article no.: L19000322
PUBLISHER:VULKAN Lokring Rohrverbindungen GmbH & Co. KGHeerstraße 66, 44653 Herne / GermanyTel.: + 49 (23 25) 922-155Fax: + 49 (23 25) 51222 E-mail: [email protected]
CONCEPT AND DESIGN:Hackforth Holding GmbH & Co. KG VULKAN MarketingHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
PREPRESS:Hackforth Holding GmbH & Co. KG VULKAN MarketingHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
www.vulkan.com
For a list of our Authorised Distributors, please refer towww.vulkan.com/en-us/lokring/contact/
www.vulkan.com/en-us/lokring/videos/
FOR THE LAST 40 YEARS, VULKAN LOKRING HAS DEVELOPED, MANUFACTURED AND MARKETED MECHANICAL TUBE JOINING SYSTEMS FOR REFRIGERANT LINES.
CUSTOMERVALUE
QUAL
ITY
APPROVED SOLUTION
GLOBAL
KNOW–HOW
COST ADVANTAGE
VULKAN Lokring is a company that belongs to the VULKAN Group,
which is a medium-sized family-owned enterprise for technical
industrial applications with its head office in Germany. As a
developer of the LOKRING technology, VULKAN Lokring is a market
leader in the field of solder-free and non-detachable tube joints.
Developed originally for the most extreme conditions encountered
in manned space travel, the LOKRING tube joining technique has
undergone constant advanced development for applications in
commercial refrigeration and air conditioning technology.
have been successfully used in the industrial volume production
of refrigerators, freezers and air conditioning systems.
APPROVED SOLUTION
2,000,000,000 LOKRING® CONNECTIONS
are produced in the 5 international manufacturing facilities of
VULKAN Lokring on modern multi-spindle automatic lathe
machines and shipped to 83 destination countries.
GLOBAL
500,000 LOKRINGS PER DAY
optimise their international competitive edge by using LOKRING
tube connections as cost and quality benefit compared to
brazed ones.
COST ADVANTAGE
7,000 CUSTOMERS
of LOKRING based on automated industrial image
processing as part of the certified VULKAN Lokring quality
management system.
QUALITY
100% QUALITY INSPECTION
are used at present by customers in order to optimally join tubes
made of different materials and combinations of diameters.
KNOW–HOW
650 UNIQUE TYPES OF LOKRING
Therefore, VULKAN Lokring nowadays provides customised
solutions for tube connections in the fields of the manufactur-
ing, installation and servicing of refrigeration and air condition-
ing technology.
All from a single source – from separate development for
customers to their own production range and right up to sales
& service by local subsidiaries or authorised business partners.
CONTENTS
VULKAN LOKRING
02 LOKRING® & LOKCLIP
08 STARTER KIT
10 ASSEMBLY TOOLS
12 LOKPREP
14 LOKRING® TUBE CONNECTIONS
18 LOKCLIP HOSE CONNECTIONS
22 O-RING REPAIR FITTINGS
24 TUBES AND ELBOWS
26 ACCESSORIES
28 LOKRING® ASSEMBLY
29 LOKCLIP ASSEMBLY
32 ONLINE-SERVICE
33 IMPRINT
VULKAN LOKRING. LOKRING tube connections and tools are made by VULKAN Lokring in-house: Development,
construction, manufacture as well as sales & service. For the customers, this means „all from a single source“ and
directly from the manufacturer: customised planning and consultancy, supervision at the time of introduction, and
support and service locally wherever required.
PRODUCT AND MANAGEMENT CERTIFICATION. TÜV and UL product
certification. ISO 9001 certification of the quality management system.
ISO 14001 certification of the environment management system.
AEO certification. Leak-proof tests. Expert survey reports.
PRODUCTION. Approximately 500,000 LOKRINGs per day are
produced on modern multi-spindle automatic machines in Germany,
Brazil, India, USA and China. Therefore, for customers, LOKRING is
the optimal partner when it comes to safety, flexibility and logistics.
RESEARCH AND DEVELOPMENT. VULKAN Lokring is the inventor
and developer of the patented LOKRING tube joint. For the last 40
years, experienced engineers have built new solutions for
customers‘ applications in the development centre in Germany.
CLIMATE PROTECTION. Since our tube connections are hermetically
sealed, we can ensure that no climate damaging refrigerants leak into the
environment. Furthermore, LOKRING makes the use of environmental
friendly but flammable refrigerants (HC) safer and allows the use of CO2
(R744). Thus, by using LOKRING tube connections you make a
contribution to the active protection of the environment.
GERMANPRECISION ENGINEERING
QUALITY. The German standard of quality management is the
benchmark for the international production of LOKRING. The certified
quality management and the deployment of highly advanced industrial
image processing systems facilitate 100% quality control.
SERVICE. Whether you are seeking planning and consultancy for
optimising the refrigeration cycle system by using solder-free tube
connections, support with the introduction of the LOKRING technology
in production or after-sales service – everything is available locally with
competent VULKAN Lokring technicians.
VULK
AN LO
KRIN
G CO
MPA
CT
CUSTOMER REFERENCES. A small selection from more than 7,000 satisfied customers:
THE BEST CONNECTION – WORLDWIDE. Operating with five international production locations, with 17 subsidiary companies and an
additional 13 agencies worldwide, we ensure that VULKAN Lokring expertise is available on site throughout the world. This means that
our customers have rapid access to our specialists and that the necessary solutions are quickly available exactly where they are needed.
VULKAN production facility Subsidiary
02 | LOKRING & LOKCLIP
THE PATENTED LOKRING® TUBE CONNECTION SYSTEM PROVIDES AN INNOVATIVE SYSTEM OF SOLDER-FREE TUBE CONNECTIONS FOR EVERY REPAIR SITUATION IN VEHICLE AIR CONDITIONING SYSTEMS.
THE BENEFITS
For universal use, independent of the vehicle type and model year
No waiting for expensive original spare parts
No welding, soldering or thread cutting necessary
In many cases, the faulty line may not even have to be removed
For more than 30 years tried-and-trusted by OEMs
In compliance with EU directive 2006/40/EG
LOKRING tube connections can be made without a great deal of force being
necessary, using simple hand assembly tools. LOKRING ensures an absolutely
clean, permanent and purely mechanical tube connection with long-term hermetic
air-tightness. This is confirmed by the special TÜV test and approval. All this
makes LOKRING tube connections one of the most economical and reliable
methods of connecting refrigerant tubes.
LOKRING® & LOKCLIP
Type-examination tested
WITH LOKRING & LOKCLIP YOU CAN REPAIR:
Straight tubes and elbows
Hoses
Hose-to-Tube connections
Pressure switch connections
Service ports
Threaded connections
LOKRING & LOKCLIP | 03
REPAIR THE LEAK!
04 | LOKRING & LOKCLIP
THE TYPICAL LOKRING union joint consists of two LOKRINGs and one tubular joint for the acceptance of the two tube ends. Thanks to the conical inner contour of the LOKRING and the special outer contour of the joint, the diameter of the connection is reduced during assembly to such an extent that the joint and the tube
create a hermetically sealed metal-to-metal connection. The lifetime gas-tightness of the fitted connection is ensured by the state of permanent elastic pre-tension, which is produced by the radial forces of the LOKRINGs acting in the opposite direction to the tube-joint connection.
TECHNICAL SPECIFICATIONS
Reference standards:EN 378-2 and ISO 14903
Max. operating pressure:25 bar (360 psi)
Admissible refrigerants: Suitable for R134a and HFO-1234y.Other refrigerants on request.
Temperature range: -50°C up to 150°C (-58°F up to 302°F)
MATERIAL COMBINATIONS
Aluminium
Tube diameter range:8 to 19 mm (5/16" to 3/4")
Material combinations:For joining aluminium tubes. Other tube materials on request.
Approvals:TÜV, UL (File SA12004)
LOKPREP
LOKRING®
JOINT
LOKRING®
LOKRING & LOKCLIP | 05
LOKCLIP TECHNOLOGY provides you with a simple and low-cost alternative to pressed and screwed connections for hoses. LOKCLIPs can be used to set up both hose-to-hose and hose-to-tube connections for all conceivable repair situations. The system,
comprising stainless steel clips, clip position holder and contoured joint practically excludes application mistakes during assembly. Alongside the important SAE J2064, LOKCLIPs meet all the required standards.
TECHNICAL SPECIFICATIONS
Max. operating pressure:25 bar (360 psi)
Admissible refrigerants: Suitable for R134a and HFO-1234y.Other refrigerants on request.
Temperature range: -40°C up to 135°C (-40°F up to 275°F)
MATERIAL COMBINATIONS
HoseAluminium
Tube diameter range:8 to 19 mm (5/16" to 3/4")
Material combinations:For joining LOKCLIP RH refrigerant hose and aluminium tube. Other tube materials on request.
JOINTPLASTIC CLIP HOLDER
STAINLESS STEEL CLIP
LOKRING®
LOKCLIP
08 | STARTER KIT
STRAIGHT REDUCING CONNECTORS45° ALUMINIUM ELBOWS90° ALUMINIUM ELBOWSHOSE-TO-TUBE CONNECTORSHOSE-TO-LOKRING CONNECTORS
HAND ASSEMBLY TOOLASSEMBLY JAWSLOKPREPABRASIVE MATSTRAIGHT CONNECTORS
STARTER KIT
LOKRING® & LOKCLIP STARTER KIT
For a perfect start in the world of quick, easy and, above all, low-cost repairs to tubes and hoses in vehicle air conditioning systems.
Article no. Article name
L13005830 LOKBOX SK-VAC-01
Scope of supply
Article no. Article name Description Quantity
L13002811 LOKTOOL MZ-V Hand assembly tool 1
L20000304 LOKTOOL MB 8 EVP Assembly jaws 2
L20000305 LOKTOOL MB 10 EVP Assembly jaws 2
L20000306 LOKTOOL MB 12 EVP Assembly jaws 2
L20000307 LOKTOOL MB 16 EVP Assembly jaws 2
L20000308 LOKTOOL MB 19 EVP Assembly jaws 2
L14000878 LOKPREP 65G Anaerobic sealant 1
L14002211 AM-SV Abrasive mat 1
L13005445 LOKRING 8 NK Al 50 Straight connectors 4
L13005446 LOKRING 9,53 NK Al 50 Straight connectors 4
L13005502 LOKRING 10 NK Al 50 Straight connectors 2
L13005616 LOKRING 12 NK Al 50 Straight connectors 2
L13005447 LOKRING 12,7 NK Al 50 Straight connectors 2
L13005448 LOKRING 16 NK Al 50 Straight connectors 2
L13005501 LOKRING 18 NK Al 50 Straight connectors 2
L13005449 LOKRING 19 NK Al 50 Straight connectors 2
L13005664 LOKRING 9,53/8 NR Al 50 Straight reducing connectors 2
L13005668 LOKRING 10/9,53 NR Al 50 Straight reducing connectors 2
L13005670 LOKRING 12,7/12 NR Al 50 Straight reducing connectors 2
L13005671 LOKRING 19/18 NR Al 50 Straight reducing connectors 2
L14002234 LOKRING Al 90-EB 9,53 90° aluminium elbows 1
L14002235 LOKRING Al 90-EB 12,7 90° aluminium elbows 1
L14002236 LOKRING Al 90-EB 16 90° aluminium elbows 1
L14002231 LOKRING Al 45-EB 9,53 45° aluminium elbows 1
L14002232 LOKRING Al 45-EB 12,7 45° aluminium elbows 1
L14002233 LOKRING Al 45-EB 16 45° aluminium elbows 1
L13003869 LOKCLIP Al NK9,53-06 Hose-to-LOKRING connectors 2
L13003870 LOKCLIP Al NK12,7-08 Hose-to-LOKRING connectors 2
L13003871 LOKCLIP Al NK16-10 Hose-to-LOKRING connectors 2
L13003872 LOKCLIP Al NK19-12 Hose-to-LOKRING connectors 2
L13004400 LOKCLIP Al 9,53-06 Hose-to-tube connectors 2
L13004401 LOKCLIP Al 12,7-08 Hose-to-tube connectors 2
L13004402 LOKCLIP Al 16-10 Hose-to-tube connectors 2
L13004403 LOKCLIP Al 19-12 Hose-to-tube connectors 2
STARTER KIT | 09
LOKTOOL MZ-V
Our patented hand assembly tools were developed especially for LOKRING assembly. You only need one tool,
because the assembly jaws can be exchanged quickly and easily. Since the handles are offset on both sides, the
MZ-V is also suitable for flexible use during work in the engine compartment.
10 | ASSEMBLY TOOLS
ASSEMBLY TOOLS
LOKRING ASSEMBLY JAWS
Suitable for the LOKTOOL MZ-V hand assembly tool. Article no. Article name For tube outer-ø[ mm | " ]
L20000304 LOKTOOL MB 8 EVP 6 – 8 | 1/4 – 5/16
L20000305 LOKTOOL MB 10 EVP 9 – 11 | 3/8
L20000306 LOKTOOL MB 12 EVP 12 – 13 | 1/2
L20000307 LOKTOOL MB 16 EVP 14 – 17 | 5/8
L20000308 LOKTOOL MB 19 EVP 18 – 20 | 3/4
LOKRING HAND ASSEMBLY TOOL
Specially developed for the LOKRING assembly.
Patented lever mechanism for assembly with minimum effort.
Assembly jaws are easy to change for different tube diameters.
Both handles bend for use in hard-to-reach areas.
Made in Germany!
IMPORTANT: Assembly jaws not included.
Article no. Article name
L13002811 LOKTOOL MZ-V
LOKCLIP HAND ASSEMBLY TOOL
For crimping the stainless steel clips of a LOKCLIP hose connection.
Suitable for all LOKCLIP hose connections.
Compact design makes it easy to access even in hard-to-reach areas.
Article no. Article name
L14003352 LOKTOOL LC flex
ASSEMBLY TOOLS | 11
ASSEMBLY TOOLS
LOKPREP 65G
Metal tubes can have longitudinal grooves on the surface from production. These production-related
faults can be compensated quite easily by moistening the tube ends to be connected with LOKPREP
fluid before assembly. Thanks to its capillary characteristic, it can even flow into microscopic
cavities and fill these out completely. LOKPREP is not an adhesive, rather an anaerobic sealant
which hardens under oxygen exclusion and in contact with free metal ions.
POSSIBILITY A Move the nozzle 360° around the tube to distribute the LOKPREP evenly.
POSSIBILITY B Rotate the moistened tube through 360° inside the joint.
POSSIBILITY C Rotate the joint through 360° around the end of the tube.
12 | LOKPREP
LOKPREP APPLICATION
ANAEROBIC SEALANT
Specially developed for the LOKRING assembly.
Must be used for all LOKRING assemblies.
Compensates for any unevenness in the tube surface.
Ensures that every LOKRING connection is hermetically sealed.
IMPORTANT: LOKPREP 65G is suitable for aluminium tubes. Other tube materials on request.
Article no. Article name Content [ml]
L14000878 LOKPREP 65G 15
LOKPREP | 13
LOKPREP
14 | LOKRING TUBE CONNECTIONS
LOKRING®
LOKRING STRAIGHT CONNECTORS
CORROSION TEST ACCORDING TO ISO 9227 NSS
TEMPERATURE CHANGE CYCLE TEST
TENSILE TEST ACCORDING TO DIN EN 10 002
TESTED ACCORDING TO EU DIRECTIVE 2006/40/EG
ALTERNATING PRESSURE TEST WITH 250,000 CYCLES
BURST PRESSURE TEST UP TO 200 bar (2,900 psi)
REFERENCE STANDARDS EN 378-2 AND ISO 14903
MAX. OPERATING PRESSURE 25 bar (360 psi)
STRAIGHT CONNECTORS
For connecting aluminium tubes with identical outer diameters.
Article no. Article name For tube outer-ø[ mm | " ]
L13005445 LOKRING 8 NK Al 50 8 | 5/16
L13005446 LOKRING 9,53 NK Al 50 9.53 | 3/8
L13005502 LOKRING 10 NK Al 50 10 | –
L13005616 LOKRING 12 NK Al 50 12 | –
L13005447 LOKRING 12,7 NK Al 50 12.7 | 1/2
L13005564 LOKRING 15 NK Al 50 15 | –
L13005448 LOKRING 16 NK Al 50 16 | 5/8
L13005501 LOKRING 18 NK Al 50 18 | –
L13005449 LOKRING 19 NK Al 50 19 | 3/4
LOKRING TUBE CONNECTIONS | 15
STRAIGHT CONNECTORS
CONNECTORS WITH PRESSURE SWITCH CONNECTIONS
For replacing defective pressure switch connections.
Thread: M7/16"-20
End cap included.
Article no. Article name For tube outer-ø[ mm | " ]
L14003301 LOKRING Al SP M1/4-NK9,53 9.53 | 3/8
STRAIGHT REDUCING CONNECTORS
For connecting aluminium tubes with different outer diameters.
Article no. Article name Outer-ø tube 1 Outer-ø tube 2[ mm | " ] [ mm | " ]
L13005664 LOKRING 9,53/8 NR Al 50 9.53 | 3/8 p 8 | –
L13005668 LOKRING 10/9,53 NR Al 50 10 | – p 9.53 | 3/8
L13005452 LOKRING 12,7/9,53 NR Al 50 12.7 | 1/2 p 9.53 | 3/8
L13005670 LOKRING 12,7/12 NR Al 50 12.7 | 1/2 p 12 | –
L13005453 LOKRING 16/12,7 NR Al 50 16 | 5/8 p 12.7 | 1/2
L13005663 LOKRING 16/15 NR Al 50 16 | 5/8 p 15 | –
L13005454 LOKRING 19/16 NR Al 50 19 | 3/4 p 16 | 5/8
L13005671 LOKRING 19/18 NR Al 50 19 | 3/4 p 18 | –
16 | LOKRING TUBE CONNECTIONS
LOKRING® TUBE CONNECTIONS
CONNECTORS WITH R134a LOW PRESSURE PORT CONNECTIONS
For replacing defective R134a low pressure port connections.
Also suitable for converting an air conditioning system from R12 to R134a.
End cap included.
Article no. Article name For tube outer-ø[ mm | " ]
L13001733 LOKRING Al LP-NK10 10 | –
L13001428 LOKRING Al LP-NK12,7 12.7 | 1/2
L13001377 LOKRING Al LP-NK16 16 | 5/8
CONNECTORS WITH R134a HIGH PRESSURE PORT CONNECTIONS
For replacing defective R134a high pressure port connections.
Also suitable for converting an air conditioning system from R12 to R134a.
End cap included.
Article no. Article name For tube outer-ø[ mm | " ]
L13001374 LOKRING Al HP-NK10 10 | –
LOKRING TUBE CONNECTIONS | 17
18 | LOKCLIP HOSE CONNECTIONS
LOKCLIPLOKCLIP STRAIGHT CONNECTORS
TESTED ACCORDING TO EU DIRECTIVE 2006/40/EG
TEMPERATURE RANGE -40°C UP TO 135°C (-40°F UP TO 275°F)
BURST PRESSURE TEST UP TO 121 bar (1755 psi)
MAX. OPERATING PRESSURE 25 bar (360 psi)
HOSE-TO-LOKRING® CONNECTORS
For assembling hose-to-tube connections.
Plastic clip holder and two stainless steel clips included.
IMPORTANT: The LOKCLIP hose connections have been specially designed for the LOKCLIP RH refrige-rant hose. We cannot accept any liability for use with other refrigerant hoses.
Article no. Article name For tube outer-ø For hose size[ mm | " ]
L13003869 LOKCLIP Al NK9,53-06 9.53 | 3/8 06
L13003870 LOKCLIP Al NK12,7-08 12.7 | 1/2 08
L13003871 LOKCLIP Al NK16-10 16 | 5/8 10
L13003872 LOKCLIP Al NK19-12 19 | 3/4 12
LOKCLIP HOSE CONNECTIONS | 19
HOSE-TO-LOKRING® CONNECTORS
HOSE-TO-TUBE CONNECTORS FOR STANDARD BARRIER HOSE
For assembling hose-to-tube connections.
Can be used with LOKRING aluminium connectors and reducing connectors.
Suitable for refrigerant hoses with standard wall thickness.
Not suitable for film tubes.
A special clamping tool is required for assembling the hose connection.
Article no. Article name Tube outer-ø For hose size[ mm | " ]
L14000751 HOSELOK Al 9,53-06 9.53 | 3/8 p 06
L14000872 HOSELOK Al 12,7-08 12.7 | 1/2 p 08
L14000879 HOSELOK Al 16-10 16 | 5/8 p 10
L14000873 HOSELOK Al 19-12 19 | 3/4 p 12
HOSE-TO-TUBE CONNECTORS
For assembling hose-to-tube connections.
Can be used with LOKRING aluminium connectors and reducing connectors.
Plastic clip holder and two stainless steel clips included.
IMPORTANT: The LOKCLIP hose connections have been specially designed for the LOKCLIP RH refrige-rant hose. We cannot accept any liability for use with other refrigerant hoses.
Article no. Article name Tube outer-ø For hose size[ mm | " ]
L13004400 LOKCLIP Al 9,53-06 9.53 | 3/8 p 06
L13004401 LOKCLIP Al 12,7-08 12.7 | 1/2 p 08
L13004402 LOKCLIP Al 16-10 16 | 5/8 p 10
L13004403 LOKCLIP Al 19-12 19 | 3/4 p 12
HOSE CONNECTORS (SPLICER)
For connecting hoses with identical inner diameters.
Two plastic clip holders and four stainless steel clips included.
IMPORTANT: The LOKCLIP hose connections have been specially designed for the LOKCLIP RH refrige-rant hose. We cannot accept any liability for use with other refrigerant hoses.
Article no. Article name For hose size
L13004219 LOKCLIP Splicer 06-06 06
L13004220 LOKCLIP Splicer 08-08 08
L13004221 LOKCLIP Splicer 10-10 10
L13004222 LOKCLIP Splicer 12-12 12
20 | LOKCLIP HOSE CONNECTIONS
LOKCLIP HOSE CONNECTIONS
PLASTIC CLIP HOLDERS FOR LOKCLIP HOSE CONNECTIONS
Ensures the stainless steel clips of a LOKCLIP hose connection are in the right place.
Article no. Article name For hose size
L14002808 LOKCLIP PCH 06 06
L14002809 LOKCLIP PCH 08 08
L14002810 LOKCLIP PCH 10 10
L14002811 LOKCLIP PCH 12 12
STAINLESS STEEL CLIPS FOR LOKCLIP HOSE CONNECTIONS
For crimping the LOKCLIP RH refrigerant hose with the joint of a LOKCLIP hose connection.
Article no. Article name For hose size
L14002804 LOKCLIP SSC 06 06
L14002805 LOKCLIP SSC 08 08
L14002806 LOKCLIP SSC 10 10
L14002807 LOKCLIP SSC 12 12
REFRIGERANT HOSE FOR LOKCLIP HOSE CONNECTIONS
Refrigerant hose in OEM quality specially designed for the LOKCLIP hose connections.
Temperature range -40°C up to 135°C (-40°F up to 275°F) Operating pressure 34.50 bar (500 psi) Material sold by the metre.
IMPORTANT: If this refrigerant hose is used correctly in conjunction with the LOKCLIP hose connections, we guarantee 100 percent quality and tightness. We cannot accept any liability for products from other manufacturers.
Article no. Article name Hose inner-ø Hose outer-ø Burst pressure Bending radius Hose size[ mm ] [ mm ] [ bar | psi ] [ mm ]
L14002664 LOKCLIP RH R134a R06 7.90 – 8.60 14.20 – 15.20 172 | 2495 25 06
L14002665 LOKCLIP RH R134a R08 10.20 – 11.20 16.80 – 17.80 172 | 2495 38 08
L14002666 LOKCLIP RH R134a R10 12.50 – 13.50 18.90 – 19.90 121 | 1755 51 10
L14002667 LOKCLIP RH R134a R12 15.60 – 16.50 23.10 – 24.10 121 | 1755 76 12
REFRIGERANT HOSE SET FOR LOKCLIP HOSE CONNECTIONS
Two-metre length of hose in each of the four sizes: 06, 08, 10 and 12.
Article no. Article name
L13004937 LOKCLIP GA LCS
LOKCLIP HOSE CONNECTIONS | 21
REPLACEMENT OF FAULTY THREADSO-RING REPAIR FITTING
You can use these connections together with LOKRING or LOKCLIP connectors
to replace faulty threads. If you should damage a thread during servicing (e.g.
while replacing a condenser), it is no longer necessary to replace the whole
tube. You can simply repair this again with the O-ring repair connections.
STRAIGHT CONNECTION WITH INNER THREAD
22 | O-RING REPAIR FITTINGS
O-RING REPAIR FITTINGSSTRAIGHT CONNECTIONS WITH INNER THREAD
LOKRING aluminium O-ring repair connections with union nut (female thread).
Article no. Article name Tube outer-ø Thread[ mm | " ]
L14002599 LOKRING Al OR 5/8-F-9,53 9.53 | 3/8 5/8" – 18
L14002600 LOKRING Al OR 3/4-F-12,7 12.7 | 1/2 3/4" – 16
L14004083 LOKRING Al OR M20x1,5-F-12.7 12.7 | 1/2 M20 – 1.5
L14002601 LOKRING Al OR 7/8-F-16 16 | 5/8 7/8" – 14
L14002602 LOKRING Al OR 1 1/16-F-19 19 | 3/4 1 1/16" – 14
L14004105 LOKRING Al OR M27x1,5-F-19 19 | 3/4 M27 – 1.5
STRAIGHT CONNECTIONS WITH OUTER THREAD (MALE INSERT)
LOKRING aluminium O-ring repair connections “male insert” with union nut (male thread).
Article no. Article name Tube outer-ø Thread[ mm | " ]
L14002595 LOKRING Al OR 5/8-MI-9,53 9.53 | 3/8 5/8" – 18
L14002596 LOKRING Al OR 3/4-MI-12.7 12.7 | 1/2 3/4" – 16
L14002597 LOKRING Al OR 7/8-MI-16 16 | 5/8 7/8" – 14
L14002598 LOKRING Al OR 1 1/16-MI-19 19 | 3/4 1 1/16" – 14
90° ELBOWS WITH INNER THREAD
LOKRING aluminium O-ring repair connections with 90° elbow and union nut (female thread).
Article no. Article name Tube outer-ø Thread[ mm | " ]
L14003335 LOKRING Al OR 90° 5/8-F-9,53 9.53 | 3/8 5/8" – 18
L14003336 LOKRING Al OR 90° 3/4-F-12,7 12.7 | 1/2 3/4" – 16
L14003337 LOKRING Al OR 90° 7/8-F-16 16 | 5/8 7/8" – 14
O-RINGS FOR O-RING REPAIR FITTINGS
Suitable for LOKRING aluminium O-ring repair fittings.
Cross section: 1.78 mm
Article no. Article name Outer-ø[ mm ]
L14003399 O-Ring 06 7.65
L14003400 O-Ring 08 10.82
L14003401 O-Ring 10 14.00
L14003402 O-Ring 12 17.17
O-RING REPAIR FITTINGS | 23
TUBES AND ELBOWS
TUBES AND ELBOWS
Aluminium tubes in OEM quality. For replacing aluminium tubes. Can be used with
all LOKRING aluminium connectors as well as LOKCLIP connectors.
90°
45°
24 | TUBES AND ELBOWS
TUBES AND ELBOWS
ALUMINIUM TUBES
Aluminium tubes in OEM quality.
Length: 1 metre
Article no. Article name Tube outer-ø Article no. Article name Tube outer-ø[ mm | " ] [ mm | " ]
L14000898 LOKRING Al TU 8 8 | 5/16 L14000767 LOKRING Al TU 12,7 12.7 | 1/2
L14000766 LOKRING Al TU 9,53 9.53 | 3/8 L14000765 LOKRING Al TU 16 16 | 5/8
L14003343 LOKRING Al TU 10 10 | – L14003780 LOKRING Al TU 18 18 | –
L14000716 LOKRING Al TU 12 12 | – L14000768 LOKRING Al TU 19 19 | 3/4
ALUMINIUM TUBE SET
One-metre length of aluminium tube in each of the eight most popular diameters: 8 mm (5/16"); 9.53 mm (3/8"); 10 mm; 12 mm; 12.7 mm (1/2"); 16 mm (5/8"); 18 mm and 19 mm (3/4").
Article no. Article name
L13004936 LOKRING GA LRR
90° ALUMINIUM ELBOWS
For replacing aluminium tubes with a 90° elbow.
Can be used with all LOKRING aluminium connectors as well as LOKCLIP connectors.
Article no. Article name Tube outer-ø[ mm | " ]
L14002234 LOKRING Al 90-EB 9,53 9.53 | 3/8
L14002235 LOKRING Al 90-EB 12,7 12.7 | 1/2
L14002236 LOKRING Al 90-EB 16 16 | 5/8
L14002654 LOKRING Al 90-EB 19 19 | 3/4
45° ALUMINIUM ELBOWS
For replacing aluminium tubes with a 45° elbow.
Can be used with all LOKRING aluminium connectors as well as LOKCLIP connectors.
Article no. Article name Tube outer-ø[ mm | " ]
L14002231 LOKRING Al 45-EB 9,53 9.53 | 3/8
L14002232 LOKRING Al 45-EB 12,7 12.7 | 1/2
L14002233 LOKRING Al 45-EB 16 16 | 5/8
TUBES AND ELBOWS | 25
TUBE DEBURRER
GRATFIX N-E TUBE DEBURRER
ACCESSORIES
For quick and clean deburring of tubes, edges and steel plates.
26 | ACCESSORIES
ABRASIVE MAT
For cleaning tube ends without scratching.
Suitable for all surfaces.
Solvent-resistant.
Dimensions: 158 mm x 224 mm
Highest quality from 3M.
Article no. Article name
L14002211 AM-SV
HOSE CUTTER
For cutting refrigerant hoses.
Suitable for all common hose diameters in vehicle air conditioning systems.
Not suitable for foil hoses.
Article no. Article name
L14000672 HC 6.12
TUBE CUTTER
Diameter range: 3 to 16 mm (1/8" to 5/8") Article no. Article name Description
L14001102 TC-1050 Tube cutter
L14001103 TCS-1050 Cutting blade
TUBE CUTTER
Diameter range: 6 to 28 mm (1/4" to 1 1/8") Article no. Article name Description
L14000022 TC-1000 Tube cutter
L13003601 TCS-1000 Cutting blade
ACCESSORIES
TUBE DEBURRER
For quick and clean deburring of tubes, edges and steel plates.
Article no. Article name Description
L14001362 GRATFIX N-E Tube deburrer
L14001363 N-E100 Replacement blade
ACCESSORIES | 27
28 | LOKRING ASSEMBLY
LOKRING® ASSEMBLY TYPE 50
01. TUBE DEBURRER 02. ABRASIVE MAT 03. STABILISATION INSERTS 04. PERMANENT MARKER 05. LOKPREP 06. JOINT 07. LOKRINGS 08. HAND ASSEMBLY TOOL WITH ASSEMBLY JAWS MB EVP
01.02.
03.
05.06.
08.
07.
04.
Insert a stabilisation insert (03) suitable for the material, the outer tube diameter Ø and tube wall thickness S. Stabilisation inserts (03) may not be necessary in case of use with refrigerants with an operating pressure lower than 25 bar (e.g. R134a car A/C systems or refrigerator cabinets).
Clean the tube end by rubbing it in rotary movements using the abrasive mat (02).
Determine the tube wall thickness S and the outer tube diameter Ø on the basis of tube coding or using a slide gauge.
S
Ø = outer tube diameter S = tube wall thickness01. 02.
1
Deburr the tube end all the way round using a tube deburrer (01). Use different deburring tools for different materials.
Choose the correct LOKPREP (05) for the tube material and the ambient temperature.Apply LOKPREP (05) all the way round the sealing area of the tube end. Respect the correct curing time of the LOKPREP (05).
2 Before applying the LOKPREP (05), push the joint (06) onto the tube until you can feel the inner stop. Mark (04) the correct insertion depth on the tube.
Push the joint (06) onto the tube until it reaches the inner stop .
Put the assembly jaws (08) in place behind the LOKRING (07) and the assembly stop of the joint (06). Press the tube connection together. Do not change the insertion depth of the tube and joint (06). Press the tube connection until the LOKRING (07) is flush to the assembly stop of the joint (06). Respect the curing time of the LOKPREP (05) before applying forces to the connection.
Check the correct assembly/insertion depth on the basis of the position marking.
03. 04.
05.
3
06.
4
5
06.
06.
08.07.
LOKCLIP ASSEMBLY | 29
Insert the two stainless steel clips (02) into the clip position holder (01). Insert the hose into the clip position holder (01) as far as it will go.
Lubricate the joint (03) with a little refrigerant oil (05). Push the joint (03) into the hose as far as it will go.
01. 02. 01. 02.
03. 05. 03.
LOKCLIP ASSEMBLY
01. CLIP POSITION HOLDER 02. STAINLESS STEEL CLIPS 03. JOINT 04. LOKRING 05. REFRIGERANT OIL 06. HAND ASSEMBLY TOOL
03. 05.04.01. 02. 06.
1
3
2
4
Press the stainless steel clips (02) using the hand assembly tool (06). Start with the clip positioned at the side of the hose. As an alternative to the hand assembly tool (06) LOKTOOL MZ-V you can also use the LOKTOOL LC flex (L14003352).
06.02.
1. 2.
5
04.
Now you can make the LOKRING® connection. Respect the assembly instructions for LOKRING® tube connection assembly version 50 on www.vulkan.com. 6
32 | ONLINE-SERVICE
FOR FURTHER INFORMATION, PLEASE REFER TO OUR WEBSITE WWW.VULKAN.COM.
ONLINE-SERVICE
AUTHORISED DISTRIBUTORSwww.vulkan.com/en-us/lokring/contact/
VIDEOS www.vulkan.com/en-us/lokring/videos/
CATALOGUES & BROCHURES www.vulkan.com/en-us/lokring/downloads/
CERTIFICATES www.vulkan.com/en-us/lokring/downloads/certificates/
TECHNICAL DOCUMENTATION AND SUBMITTALwww.vulkan.com/en-us/lokring/downloads/technical-documentation-and-submittal
VALIDITY CLAUSE The LOKRING® tube connection technology represents a proven method of producing hermetically sealed metal-to-metal tube connections. The LOKRING® tube connections are mainly used in the refrigeration and air conditioning industries. The use of LOKRING® tube connection technology in other fields is to be discussed with VULKAN Lokring. VULKAN Lokring as the supplier is responsible for the qualitative delivery of the tube connections and tools which are ordered from this catalogue.
The purchaser is responsible for the use of the LOKRING® tube connections and tools as directed. The assembly has to be done accordingly to the instructions and exclusively with original LOKRING® parts. The present Vehicle Air Conditioning catalogue shall replace all previous editions, any previous printings shall no longer be valid. The data contained in this catalogue refers to the valid state of affairs in time of the copy deadline. Any changes due to technical progress are reserved.
Status: 03/2018
All duplication, reprinting and translation rights are reserved. Further remarks for the LOKRING® assembly are available on request.
Article no.: L19000095
PUBLISHER:VULKAN Lokring Rohrverbindungen GmbH & Co. KGHeerstraße 66, 44653 Herne / GermanyTel.: + 49 (23 25) 922-155Fax: + 49 (23 25) 51222 E-mail: [email protected]
CONCEPT AND DESIGN:Hackforth Holding GmbH & Co. KG VULKAN MarketingHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
PREPRESS:Hackforth Holding GmbH & Co. KG VULKAN MarketingHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
IMPRINT | 33
IMPRINT
www.vulkan.com
For a list of our Authorised Distributors, please refer to www.vulkan.com/en-us/lokring/contact/
www.vulkan.com/en-us/lokring/videos/
FOR THE LAST 40 YEARS, VULKAN LOKRING HAS DEVELOPED, MANUFACTURED AND MARKETED MECHANICAL TUBE JOINING SYSTEMS FOR REFRIGERANT LINES.
CUSTOMERVALUE
QUAL
ITY
APPROVED SOLUTION
GLOBAL
KNOW–HOW
COST ADVANTAGE
VULKAN Lokring is a company that belongs to the VULKAN Group,
which is a medium-sized family-owned enterprise for technical
industrial applications with its head office in Germany. As a
developer of the LOKRING technology, VULKAN Lokring is a market
leader in the field of braze-free and non-detachable tube joints.
Developed originally for the most extreme conditions encountered
in manned space travel, the LOKRING tube joining technique has
undergone constant advanced development for applications in
commercial refrigeration and air conditioning technology.
have been successfully used in the industrial volume production
of refrigerators, freezers and air conditioning systems.
APPROVED SOLUTION
2,000,000,000 LOKRING® CONNECTIONS
are produced in the 5 international manufacturing facilities of
VULKAN Lokring on modern multi-spindle automatic lathe
machines and shipped to 83 destination countries.
GLOBAL
500,000 LOKRINGS PER DAY
optimise their international competitive edge by using LOKRING
tube connections as cost and quality benefit compared to
brazed ones.
COST ADVANTAGE
7,000 CUSTOMERS
of LOKRING based on automated industrial image
processing as part of the certified VULKAN Lokring quality
management system.
QUALITY
100% QUALITY INSPECTION
are used at present by customers in order to optimally join tubes
made of different materials and combinations of diameters.
KNOW–HOW
650 UNIQUE TYPES OF LOKRING
Therefore, VULKAN Lokring nowadays provides customised
solutions for tube connections in the fields of the
manufacturing, installation and servicing of refrigeration and
air conditioning technology.
All from a single source – from separate development for
customers to their own production range and right up to sales
& service by local subsidiaries or authorised business partners.
LOKRING SINGLE RING
02 THE BEST CONNECTION 04 FUNCTIONAL PRINCIPAL 05 THE BENEFITS 06 TREND OF RAW MATERIALS
02
VULKAN LOKRING COMPANIES 54
ONLINE-SERVICE 56
LOKRING SERVICE SOLUTIONS 48
REFRIGERATOR APPLICATIONS
10 THE CYCLE SYSTEM OF A REFRIGERATOR 12 EVAPORATOR SECTION16 CONDENSER SECTION20 DRYER SECTION24 COMPRESSOR SECTION
08
AREAS OF NEW APPLICATIONS28
TOOLS & FUNCTION
36 LOKRING SINGLE RING38 LOKPREP40 PINCH-OFF AND ASSEMBLY TOOL 42 HYDRAULIC FLARING TOOL 44 HYDRAULIC ASSEMBLY TOOL46 HYDRAULIC AGGREGATE R2.5
34
VULKAN LOKRING COMPACT
VULKAN LOKRING IN BRIEFVULKAN LOKRING WORLDWIDEVULKAN LOKRING REFERENCES
CONTENTS
VULKAN LOKRING. LOKRING tube connections and tools are made by VULKAN Lokring in-house: Development,
construction, manufacture as well as sales & service. For the customers, this means „all from a single source“ and
directly from the manufacturer: customised planning and consultancy, supervision at the time of introduction, and
support and service locally wherever required.
PRODUCT AND MANAGEMENT CERTIFICATION. TÜV and UL product
certification. ISO 9001 certification of the quality management system.
ISO 14001 certification of the environment management system.
AEO certification. Leak-proof tests. Expert survey reports.
PRODUCTION. Approximately 500,000 LOKRINGs per day are
produced on modern multi-spindle automatic machines in Germany,
Brazil, India, USA and China. Therefore, for customers, LOKRING is
the optimal partner when it comes to safety, flexibility and logistics.
RESEARCH AND DEVELOPMENT. VULKAN Lokring is the inventor
and developer of the patented LOKRING tube joint. For the last 40
years, experienced engineers have built new solutions for
customers‘ applications in the development centre in Germany.
CLIMATE PROTECTION. Since our tube connections are hermetically
sealed, we can ensure that no climate damaging refrigerants leak into the
environment. Furthermore, LOKRING makes the use of environmental
friendly but flammable refrigerants (HC) safer and allows the use of CO2
(R744). Thus, by using LOKRING tube connections you make a
contribution to the active protection of the environment.
GERMANPRECISION ENGINEERING
QUALITY. The German standard of quality management is the
benchmark for the international production of LOKRING. The certified
quality management and the deployment of highly advanced industrial
image processing systems facilitate 100% quality control.
SERVICE. Whether you are seeking planning and consultancy for
optimising the refrigeration cycle system by using braze-free tube
connections, support with the introduction of the LOKRING technology
in production or after-sales service – everything is available locally with
competent VULKAN Lokring technicians.
VULK
AN LO
KRIN
G CO
MPA
CT
CUSTOMER REFERENCES. A small selection from more than 7,000 satisfied customers:
THE BEST CONNECTION – WORLDWIDE. Operating with five international production locations, with 17 subsidiary companies and an
additional 13 agencies worldwide, we ensure that VULKAN Lokring expertise is available on site throughout the world. This means that
our customers have rapid access to our specialists and that the necessary solutions are quickly available exactly where they are needed.
VULKAN production facility Subsidiary
02 | THE BEST CONNECTION
THE BEST CONNECTIONTHE LOKRING SINGLE RING TECHNOLOGY is a method for connecting metallic refrigerant lines without brazing so that they are
permanent and hermetically sealed. For this purpose, VULKAN Lokring constructs customised LOKRING tube connections
for any application based on the tube materials, dimensions and tolerances and the associated assembly tools. The primary
area of application is the manufacture of the refrigerant circuit in the series production of refrigerators and freezers. There
are other applications for the manufacture of evaporators for automotive air-conditioning systems, for heat exchangers in
refrigeration and air-conditioning technology (e.g. manufacture of heat pumps) or with the serial installation of refrigeration
and air-conditioning technology (e.g. air-conditioning for buses). Whether it is a matter of optimising costs, improving quality
or solving a problem – LOKRING SINGLE RING is the answer!
REFRIGERATORS AND FREEZERS. This is where the use of LOKRING has been proven
a billion times over for the last 40 years. Nonetheless, it is in this segment that many
LOKRING SINGLE RINGs are being constructed at present for new applications so that
an increasing number of brazed connections are being replaced by LOKRING.
AUTOMOTIVE AIR-CONDITIONING. LOKRING has been a supplier of tube connections
for the initial fitting of air-conditioning components to leading suppliers in the auto-
motive industry for many years. The LOKRING SINGLE RING is being used for the
series manufacture of evaporators and heat exchangers made of aluminium.
You can find more information on pages 08 – 27.
You can find more information on pages 30 – 31.
THE BEST CONNECTION | 03
HEAT EXCHANGERS / HEAT PUMPS. Situations may arise while installing heat
exchangers into a refrigerant circuit, resulting from construction-related or material-
related constraints that make brazing impossible or uneconomical. An example of
the solution for such a Cu–Ti tube connection in a Heat pump using
LOKRING SINGLE RING is illustrated on page 33.
HOW CAN WE CONNECT YOU? Would you like to cut costs, improve the quality or solve a problem while
manufacturing a refrigerant circuit? Would you like to dispense with brazing at a
specific connection or dispense with it completely?
BUS AIR-CONDITIONING. Aluminium lines are increasingly being used in
the installation of bus air-conditioning systems due to cost and weight
considerations. This is facilitated by the use of LOKRING SINGLE RING as
an efficient and reliable alternative to brazing.
braze-freetube solutions
Please contact VULKAN Lokring and we will find a solution for your application.
You will find contact information on pages 54 – 55.
You can find more information on page 32.
You can find more information on page 33.
04 | FUNCTIONAL PRINCIPAL
FUNCTIONAL PRINCIPALTHANKS TO THE CONICAL INNER CONTOUR of the LOKRING, the diameter of the outer tube is reduced during assembly to
such an extent that the inner tube and the outer tube create a hermetically sealed metal-to-metal connection. The lifetime
gas-tightness of the fitted connection is ensured by the state of permanent elastic pretension, which is produced by the
radial forces of the LOKRING acting in the opposite direction to the connection between the outer tube and the inner tube.
THE BENEFITS | 05
THE BENEFITS
LOKRING IS FASTER
A LOKRING joint needs just 10 seconds irrespective of
the material combination. And the more LOKRINGs that
are applied, the more significant becomes the time
advantage.
MATERIAL COMBINATIONS
As LOKRING can join any tube materials with the same
level of quality, you can switch the components and tubes
of the cycle system to the most feasible and most cost
effective material – regardless of brazing standards.
FORWARD – LOOKING SOLUTIONS
As it is the preferred material for brazing, Cu material
is extensively used in refrigerant cycle systems.
However, Cu is heavy and expensive. For example, in
the highly innovative automotive industry, all refrigerant
lines are Al material. By “joining” LOKRING you can
finally consider the new possibilities!
LOKRING is the preferred alternative to brazing as it is
more cost effective, delivers better quality with less
failure and leak rates, as well as being faster.
Furthermore, it provides an excellent opportunity to
switch tubes and components of the cycle system
to cost saving materials (e.g. aluminium).
LOKRING IS BETTER
€€€LOKRING directly saves the costs for silver solder and
highly trained operators. Meanwhile, LOKRING indirectly
reduces potential brazing cost implications that might
occur through leaks, corrosion, harmful fumes, damage,
burns or tube preparations. LOKRING may even reduce
the number of joints needed and the consumption of
expensive Cu components.
LOKRING IS COST EFFECTIVE
A correctly made LOKRING joint ensures both a zero
failure rate and zero leak rate in both plant and field. In
addition, the LOKRING joint is very clean both inside and
outside and there is no possibility of damage and burns
occurring from brazing inside a cabinet. Finally, it ensures
that there is no corrosion on grinded St tubes and no
hazardous brazing fumes.
LOKRING IS BETTER QUALITY
AlCu
St
Al
TiCu Cu St
Ti
StSt
Ti
06 | PRICE HISTORY AND TREND OF RAW MATERIALS
TREND OF RAW MATERIALSCOPPER, ALUMINIUM AND STEEL RAW MATERIAL. The applied raw materials for components and tubes in a refrigerant
cycle system are an essential input factor behind the cost of production. The following price chart shows the price of
raw materials from 2005 to December of 2017, as well as anticipated price trends up to 2020, on the assumption
that there will be consistency in the historical rate of price increases.
COPPER VERSUS ALUMINIUM AND STEEL. As copper material is used for many components and refrigerant lines in the
refrigeration industry, it plays a significant role in the cost of production. Since 2005, the price of copper material has
increased with an average yearly increase of 7%. On top, the price has been fluctuating greatly which makes cost planning
very difficult. The prices for aluminium and steel on the other hand have not been fluctuating so much. The price of
aluminium material has increased with an average yearly increase of 2.5% and the price of steel material has increased with
an average yearly increase of 1.7%.
For obvious reasons, the automotive industry – which is particularly known for high cost pressure – is using only aluminium
material, which when taking into consideration the light weight (1/3 the weight of steel), is the most economical material
for components and refrigerant lines. However, with aluminium comes the problem of brazing. With LOKRING, this is not a
problem as it can easily join tubes of any material. Therefore, LOKRING can help you to reduce your production costs!
Copper
Aluminium
Steel
FIGURE 1: chart of copper, aluminium and steel raw material/kg in Euro (03.2018).
COPPER, ALUMINIUM, STEEL: CHART OF RAW MATERIAL PRICE | kg in Euro
Price in Euro 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2020
7.00
6.00
5.00
4.00
3.00
2.00
1.00
0
PRICE HISTORY AND TREND OF RAW MATERIALS | 07
SILVER BRAZING. The cost of silver brazing is dependent on the following factors: silver price, gram (g) of silver solder per
joint and the percentage (%) of silver in the solder. The following chart shows the exemplary costs of one brazed joint of
minimum quality (0.6 g / 20%) and one of maximum quality (1.0 g / 30%) and the corresponding anticipated cost trends
to 2020, once again assuming the silver price increases consistency in line with historical trends.
LOKRING VERSUS SILVER BRAZING: Silver brazing has become increasingly expensive. Furthermore the silver price has
been fluctuating greatly which makes the cost planning for brazing very difficult. The exposure to the anticipated future
price increases of silver represents a significant risk in terms of any cost planning. Meanwhile, the price for LOKRING
SINGLE RING is not only cost effective but should also prove to be constant in the long term!
Price in Euro 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2020
0.30
0.25
0.20
0.15
0.10
0.05
0.00
Joint max. quality1.0g / 30%
Joint min. quality 0.6g / 20%
SILVER BRAZING: CHART OF PRICE PER JOINT | in Euro
FIGURE 2: chart of costs for soldered joints with 0.6 g / 20 % and 1.0 g / 30 % in Euro (03.2018).
10 | REFRIGERATORS AND FREEZERS
REFRIGERATORS AND FREEZERS
09.
10.
11.
12.
Suction line > Compressor
Compressor > Hot gas line
Compressor charging tube sealing
Compressor > Charging tube
03.01.
EVAPORATOR SECTION CONDENSER SECTION DRYER SECTION COMPRESSOR SECTION
04.02.
05.
Back plate condenser > Liquid line
Evaporator > Suction line
Side plate condenser > Back plate condenser
Capillary tube > Evaporator
Hot gas line > Side plate condenser
06.
07.
08.
Dryer service tube sealing
Dryer > Capillary tube
Liquid line > Dryer
THE CYCLE SYSTEM OF A REFRIGERATOR can be segmented into four sections: evaporator, condenser, dryer and
compressor. The segmented cycle system below is a no frost model comprising two condensers and it is displaying
the maximum quantity of 12 LOKRING SINGLE RING applications (10 tube joinings and 2 tube sealings). As the cycle
system is the heart of every refrigerator, these 12 points are essential as regards operability, reliability and thus the
overall success of a refrigerator. In the following chapters of this catalogue we will discuss and outline the advantages
of choosing LOKRING SINGLE RING solutions rather than opting for brazing each section and individual application.
09.
10.
12.
11.
02.01.
03.
05.
06.
04.07.
08.
12 | EVAPORATOR SECTION
EVAPORATOR SECTIONEVAPORATOR SECTION Generally, the evaporator is made of aluminium and as it is not possible to braze Al to Cu in the
plant, the evaporator supplier has to supply the evaporator with Al to Cu connectors at suction, as well as on the capillary
side. The manufacturer is then brazing the Cu suction tube and Cu capillary tube to the Al to Cu connectors inside the
cabinet in the plant. Therefore, the conventional way results in a total of 4 joints: 2 Al to Cu connectors made by the eva-
porator supplier and 2 Cu to Cu joints brazed by the manufacturer. However, by choosing LOKRING you can reduce the
total number of joints to 2 Al to Cu joints or even 2 Al to Al joints and also experience plenty of associated advantages!
01. Evaporator > Suction line 02. Capillary tube > Evaporator
02.01.
14 | EVAPORATOR SECTION
EVAPORATOR SECTIONLOKRING SINGLE RING. When using LOKRING, no
Al to Cu connectors by the evaporator supplier are
required. The manufacturer can directly join the Al
evaporator to the Cu suction line and to the Cu
capillary tube with just 2 joints. There is no chance
of damage, burning or health hazards due to brazing
inside the cabinet and no skilled operator is required.
THE
LOKR
ING
SOLU
TIONS
Easy connection of Al evaporator to the Cu
suction line and to the Cu capillary tube.
MATERIAL COMBINATION
EVAPORATOR > SUCTION LINE. Straightforward Al to Cu joint.
01.
No heat generation.
No fire protection requirements or safety requirements.
No use of nitrogen to prevent oxygenation.
Rotary swaging of Al tube on capillary side of the
evaporator is required.
BRAZE-FREE TUBE SOLUTIONS
50% less potential of leaks, as the number of joints
is reduced from 4 to 2.
No chance of damage and burns from brazing
inside the cabinet.
Very clean both outside and inside.
No risk of choking of capillary tube due to brazing.
QUALITY
No need for skilled operator.
As the manufacturer is reducing the costs of 2 joints
(no Al to Cu connectors by the evaporator supplier)
the supplier of the evaporator can reduce the price
for the evaporator.
COSTS€€€
EVAPORATOR SECTION | 15
EVAPORATOR > SUCTION LINE. Straightforward Al to Cu joint.
As the material costs for copper tubes are constantly
increasing, it becomes a critical cost factor (see page
06 – 07). The fact that LOKRING can easily connect
Al to Al tubes means that the suction tube and capillary
tube can be replaced by cheaper Al tubes. Save costs
and improve the quality at the same time.
Change the suction line and capillary tube
from expensive Cu to cheaper Al material.
Join Al evaporator with Al Suction tube and Al
capillary tube in a straightforward manner.
CAPILLARY TUBE > EVAPORATOR. Straightforward Al to Cu joint.
02.
FORWARD-LOOKING SOLUTION
03.
05.
04.
16 | CONDENSER SECTION
CONDENSER SECTIONCONDENSER SECTION. This model of refrigerator has two condensers – a back plate condenser and an additional
side plate condenser. Therefore, in total, the condenser section has 3 critical joints. One St to St joint from the
back plate condenser to the liquid line and a second St to St joint from the side plate condenser to the back plate
condenser. The third joint from the hot gas line to the side plate condenser is a Cu to St or St to St joint. All 3 joints
are brazed with expensive silver solder, which necessitates the preparation of the St tube and protection of the
connection point against corrosion, and they all have a maximum leak rate.
03. Back plate condenser > Liquid line
05. Hot gas line > Side plate condenser04. Side plate condenser > Back plate condenser
THE
LOKR
ING
SOLU
TIONS
18 | CONDENSER SECTION
CONDENSER SECTIONBACK PLATE CONDENSER > LIQUID LINE. St to St joint.
03.
SIDE PLATE CONDENSER > BACK PLATE CONDENSER. St to St joint.
04.
HOT GAS LINE > SIDE PLATE CONDENSER. Cu to St or St to St joint.
05.
CONDENSER SECTION | 19
For brazing these joints, silver solder of 30%
is typically used.
Due to critical joint, generally speaking, the most
skilled operator is used to braze these joints.
Maximum rate of leakages both in the plant
and in the field.
The potential to overlook faults at the solder
seam of the St tubes is quite high.
If tubes with a different kind of St material are
preheated for brazing, the “weaker” tube gets
brittle, resulting in damage.
To avoid corrosion after removing the zinc
coating, the connection points have to be painted
or protected by a shrinking hose.
The joint looks very unclean after brazing
and scale removal is required.
Protective equipment against harmful
brazing fumes is necessary.
PROBLEMS OF BRAZING
As LOKRING is a cold connection you do not
face any problems induced by brazing a
St to St or Cu to St joint.
The switch from brazing to LOKRING is easy
and can be implemented immediately as
no major changes are required.
BRAZE-FREE TUBE SOLUTIONS
Joining both St to St and St to Cu with LOKRING
is a reliable, fast and easy operation that takes
just 10 seconds.
MATERIAL COMBINATION
No need for expensive silver solder.
No skilled operators required.
No extra costs through leaks in plant or after
sales service costs.
No protective equipment required against
harmful brazing fumes.
COSTS€€€
No leakages either in field or in production.
Very clean both inside and outside.
No hazardous brazing fumes.
QUALITY
No additional operation of applying paint or using
shrinking hose for protection against corrosion.
No scale removal of the soiled joint after brazing
is required.
TIME
FORWARD-LOOKING SOLUTION
Using LOKRING on the condenser(s) can reduce
material costs as the wall thickness of tubes
can be reduced to 0.3 mm.
As the weight of Al is 1/3rd of St and the price is
nearly double, costs can be reduced by using LOKRING
and switching the condenser(s) from St to Al.
06.
07.
08.
20 | DRYER SECTION
DRYER SECTION
06. Dryer service tube sealing 07. Dryer > Capillary tube 08. Liquid line > Dryer
DRYER SECTION. The dryer has 2 critical joints. One is the dryer to the capillary tube joint (Cu to Cu) which,
when brazing, is most critical for choking or leakages, and this is worsened by the high rate of leakages
from the field which result in extra costs in terms of after sales servicing. The second joint is the liquid line to
the dryer joint (St to Cu), which is brazed with silver solder. A third application on the dryer is the LOKRING
stopper for sealing off the charging tube.
22 | DRYER SECTION
DRYER SECTION
THE
LOKR
ING
SOLU
TIONS
DRYER SERVICE TUBE SEALING. The conventional method for sealing the service tube is ultrasonic welding.
06.
Look for more information about LOKRING stopper in the compressor section on page 27.
DRYER > CAPILLARY TUBE. Cu to Cu joint with maximum quality problems from leaks or chokes.
07.
FORWARD-LOOKING SOLUTIONS
As the LOKRING technology can easily join Al to Al or St to Al it is possible to switch the material of the capillary tube and dryer from Cu to Al.
€€€
For proper brazing the joint needs to be
preheated. As the capillary is very soft
and its wall thickness is just 0.5 mm,
the ID of the capillary may collapse and
choke while preheating.
Preheating and brazing this joint requires
the most skilled of operators.
Without an even preheating the capillary
suffers micro porosity in the brazing
flux, which results in very minute leaks
occurring in the field.
No need for silver solder.
No high extra costs through blockages,
leaks in the plant or after sales service.
PROBLEMS OF BRAZING
Neither leakages in the field nor
in production.
No choking of the capillary tube by high
temperature of brazing with silver solder.
Very clean both inside and outside.
No harmful brazing fumes.
QUALITY
COSTS
As LOKRING is a cold connection, you
will not experience any chokes or leaks
induced by preheating, uneven preheating
or high temperature of brazing.
Modification of the dryer with extension
of neck length to 12 mm is required.
BRAZE – FREE TUBE CONNECTION
When brazing with the high temperature
required by silver solder, the capillary
tube can collapse and choke.
Protective equipment is required
against harmful brazing fumes.
After brazing the capillary becomes
brittle and may crack while handling
resulting in leakages.
No need for skilled operators.
No protective equipment required
against harmful brazing fumes.
DRYER SECTION | 23
DRYER SERVICE TUBE SEALING. The conventional method for sealing the service tube is ultrasonic welding.
LIQUID LINE > DRYER. St to Cu joint with high costs for silver solder and skilled operators.
08.
Look for more information about LOKRING stopper in the compressor section on page 27.
FORWARD-LOOKING SOLUTIONS
As the LOKRING technology can easily join Al to Al or St to Al it is possible to switch the material of the capillary tube and dryer from Cu to Al.
PROBLEMS OF BRAZING
To avoid corrosion after removing the zinc
coating, the connection point has to be
painted or protected by a shrinking hose.
For brazing this joint, typically silver solder
of 30 % is used – this is very expensive!
As LOKRING is a cold connection you do
not face any problems induced by brazing
a Cu to St joint.
Modification of the dryer with extension
of neck length to 12 mm is required.
BRAZE-FREE TUBE SOLUTIONS
€€€
No additional operation of applying paint
or using shrinking hose for protection
against corrosion.
No scale removal of the soiled joint after
brazing is required.
No need for silver solder.
No need for skilled operators.
Joining St to Cu with LOKRING is a
reliable, fast and easy operation
lasting just 10 seconds.
TIME
Very clean both inside and outside.
No hazardous fumes from burning St
tube coatings.
QUALITY
COSTS
MATERIAL COMBINATION
The joint looks very unclean after brazing
and scale removal is required.
Protective equipment against harmful
brazing fumes is necessary.
24 | COMPRESSOR SECTION
COMPRESSOR SECTION
09. Suction line > Compressor
10. Compressor > Hot gas line
COMPRESSOR SECTION. There are 3 joints and 1 sealing of the charging tube on the compressor. All 3 joints on our
(frost free) model are Cu to Cu joints. Brazing Cu to Cu joints is less critical and less expensive than joints comprising
different tube materials. However, what appears to be an advantage for brazing comes at the cost of a high consumption
of expensive Cu tube on the suction line and hot gas line. And if this is not enough, the brazing fumes are unhealthy and
brazing becomes a risk in cases where hydrocarbons are used. Furthermore, the compressor is the most visible part of
the cycle system and therefore brazing looks unprofessional, dirty and is often perceived as a low quality solution.
09.
10.
12.
11.
12. Compressor > Charging tube
11. Compressor charging tube sealing
26 | COMPRESSOR SECTION
COMPRESSOR SECTION
THE
LOKR
ING
SOLU
TIONS
SUCTION LINE > COMPRESSOR. Cu to Cu joint.
COMPRESSOR > HOT GAS LINE. Cu to Cu joint.
09.
10.
As LOKRING can easily join Cu to Al, you
can save material costs and switch the
suction tube from Cu to Al!
As LOKRING can easily join Cu to St, you
can save material costs and switch the
hot gas line from Cu to St!
BRAZE-FREE TUBE SOLUTIONS
BRAZE-FREE TUBE SOLUTIONS
Look for more information about Al suction line at evaporator section page 15.
LOKRING SINGLE RING. Through using LOKRING,
there is the possibility of achieving reasonable cost
savings by switching the material of the suction tube
from Cu to Al and of the hot gas line from Cu to St.
And of course with LOKRING there are no unhealthy
fumes and no fire risks. LOKRING joints are clean
both inside and outside and in the visible compres-
sor section and therefore the refrigerator will look
entirely professional and of the very highest quality.
COMPRESSOR SECTION | 27
COMPRESSOR CHARGING TUBE SEALING. The conventional method for sealing the charging line is ultrasonic welding.
COMPRESSOR > CHARGING TUBE. Cu to Cu joint.
11.
12.
Initial investment for LOKRING
stopper application is low.
No expensive spare parts required,
such as crimping jaws.
No maintenance of the pneumatic
stopper tool required.
No safety issue in case of hydrocarbon gas.
No potential for leakages.
Looks much more professional.
Remove brazing completely from the production line by switching
to LOKRING, even though this joint is a Cu to Cu joint.
Initial investment for ultrasonic welding is high.
Jaws for ultrasonic welding are expensive and
have to be changed periodically.
When jaws are worn-out or Cu tube quality is not
perfect it causes leakages at the sealing point.
In case of hydrocarbon gas, ultrasonic welding
is not without any risk.
PROBLEMS OF ULTRASONIC WELDING
COSTS QUALITY
BRAZE-FREE TUBE SOLUTIONS
€€€
36 | TOOLS & FUNCTION
DESIGN AND CALCULATION
DESIGN, CALCULATION AND ARTICLE CODE. Based on the information provided by the customer, VULKAN Lokring will
be able to both calculate and design the most suitable LOKRING SINGLE RING. VULKAN Lokring will supply an
application drawing to the customer that will confirm the tube dimensions and tolerances, as well as the suitable
LOKRING SINGLE RING, by article code. This will be tested on the tube samples that are provided in their final
configuration (flared, rotary swaged, straight) by the customer according to VULKAN Lokring’s application drawing or
just straight, for aluminium tubes that the customer will flare with VULKAN Lokring’s flaring tool.
REQUESTED INFORMATION. Due to the wide range of
size and tolerance of tubes, it is unfortunately not pos-
sible to catalogue all of the available LOKRING sizes in
this brochure. The individually required LOKRING
SINGLE RING is designed according to the tube sam-
ples and details that are provided by the customer. To
enable the design and calculation of the most suitable
LOKRING the following information is required:
tube materials, tube dimensions, dimensional
tolerances and the wall thickness of tubes.
location of the joining, which may cause stress such
as vibration or torsion to the connection point.
any physical or thermal manipulation on the tubes
following the assembly of the LOKRING like bending
or brazing.
the refrigerant that is used in the system.
* Depending on tube materials.
LOKRING 8 N Al 52
2 4
1 3MATERIAL (AL: ALUMINUM)
TUBE SIZE
VERSIONNUMBER
NOMINAL PRESSURE(N: 25 bar UP TO 50 bar)
Operating pressure:* PN (nominal pressure) = 25 bar (362.5 psi) up to 50 bar (725 psi)
Test pressure: PP (4 x PN) = 100 bar (1450 psi) up to 200 bar (2900 psi)
Temperature range: -50 °C up to +150 °C (-58 °F up to 302 °F)
Tube wall thickness: 0.3 mm up to 1.5 mm
Tube diameter: 1.6 mm up to 16 mm
PERMISSIBLE AREAS OF APPLICATION
TOOLS & FUNCTION | 37
LOKRING SINGLE RING
LOKRING SINGLE RING
LOKRING SINGLE RING is a custom designed product for each application. Its design takes into account the tube materi-
als that are being joined, the wall thickness and the diameters of the tubes. It is both an approved and certified system for
the joining of metallic tubes.
Permanent hermetically metal-to-metal sealing.
Enables tubes consisting of different tube
materials to be easily connected.
High reliability.
No special preparation of the tubes required.
Easy and fast assembling in 10 seconds.
Handy assembly tools.
Considerable tolerances in dimensions are permitted.
Clean joint both inside and outside.
No welding, brazing or screw cutting.
Ecologically and health wise harmless system.
38 | TOOLS & FUNCTION
LOKPREP FUNCTION
Metal tubes can have production-related longitudinal grooves or
surface scratches. However, these faults can be compensated for
by moistening the surfaces of the tube ends that are to be
connected with LOKPREP fluid prior to assembly. Thanks to its
capillary characteristic, it automatically covers the surfaces of the
inserted tubes and flows into microscopic cavities and fills these
out completely.
Rather than being an adhesive, LOKPREP is in fact an anaerobic
sealant that hardens under oxygen exclusion and when in contact
with free metal ions. At the end of the hardening process the
LOKPREP sealant retains a permanently elastic structure. This
means that it does not get brittle and therefore compensates for
material-specific deformations.
There are different types of LOKPREP in order to achieve an optimal
effect that is primarily dependent on the materials used, the
installation conditions and the ambient temperature. The choice of
the LOKPREPs to be used is defined by VULKAN Lokring after the
customer specifies the application.
EXTERNAL TUBELOKRING
LOKPREP
INTERNAL TUBE
TOOLS & FUNCTION | 39
LOKPREP
LOKPREP
LOKPREP was developed especially for LOKRING assembly
and must always be used wherever LOKRINGs are to be
fitted. LOKPREP is used to provide additional safety in
LOKRING connection technology and it compensates for
possible unevenness in the tube surface, such as longitudi-
nal grooves or surface porosity. Consequently, it guarantees
that every LOKRING connection is hermetically sealed.
Article name Quantity
LOKPREP 61AL 50 ml
LOKPREP 61S 50 ml
LOKPREP is developed and manufactured exclusively for VULKAN Lokring. No other product has the specific material characteristics required in order to ensure fault-free and sealed LOKRING tube connections permanently and reliably.
40 | TOOLS & FUNCTION
OPERATIONAL INSTRUCTION
After finishing the charging, simply enter the
tube into the recess of tool jaws and pinch
off the tube by closing the sliding valve situ-
ated at the end of the tool. You can release
the tool by opening the sliding valve.
Add LOKPREP (approximately 3 mm from
the tube end). Put on the LOKRING stopper
with a slight motion of rotation to ensure a
better distribution of the LOKPREP.
Insert the stopper which is placed on the
tube in the tool jaws to ensure that the
tube is fully inserted into the stopper. By
operating the sliding valve, the LOKRING is
pressed over the collet and seals the tube.
01STEP
02STEP
03STEP
PINCH-OFF AND ASSEMBLY JAWSSLIDING VALVE TUBE
LOKRING STOPPERSYNTHETIC CASING
TOOLS & FUNCTION | 41
PINCH-OFF AND ASSEMBLY TOOL
PINCH-OFF AND ASSEMBLY TOOL
Pneumatic pinch-off and assembly tool for the leak-proof,
clean and rapid sealing of the tube ends after charging the
system with refrigerant agent, without welding or brazing.
Pneumatic pinch-off and assembly tool with two single
acting pistons and exchangeable jaws. The actuation is set
off through the sliding valve. Please note that only through
using the LOKRING stopper can one guarantee
the absolute closure of the sealed tube.
Technical data
Suitable tube material: Soft copper
Outer diameter of tube: 6 and 6.35 mm
Min. wall thickness of tube: 0.7 mm
Working pressure: 8–9 bar (116–130 psi)
Weight: 1.9 kg
Dimensions: 400 x 73 mm
42 | TOOLS & FUNCTION
OPERATIONAL INSTRUCTION
The clamping jaws have to be opened
by hand and the tube end that needs to
be flared must be inserted between the
clamping jaws up to the flaring insert.
Through the actuation of the push button
the tube is clamped by the clamping jaws
and flared by the flaring insert.
The flared tube can be removed from the
tool after the flaring process has been
completed.
01STEP
02STEP
03STEP
TUBECLAMPING JAWSFLARING INSERTPUSH BUTTONHYDRAULIC SUPPLY
TOOLS & FUNCTION | 43
HYDRAULIC FLARING TOOL
HYDRAULIC FLARING TOOL
The hydraulic flaring tool is designed for the flaring of
aluminium tubes for the production of LOKRING SINGLE
RING tube joinings. It is connected to the LOKRING
hydraulic aggregate by two 2.8 m hydraulic hoses. The
forward and backward movement of the flaring insert is
enabled by means of a double acting cylinder. The size
of the clamping jaw and the flaring insert depends on the
outside tube diameter.
Technical data
Suitable tube material: Aluminium
Max. tube outside diameter: 1/2“ / 12.7 mm*
Max. tube wall thickness: 1.0 mm*
Working pressure: up to 320 bar
Flaring time: approx. 1 sec.
Weight: approx. 1.7 kg
Dimensions: 45 x 74 x 250 mm
* Further dimensions on special request.
44 | TOOLS & FUNCTION
OPERATIONAL INSTRUCTION
Slide the LOKRING over the inner tube so that
the chamfer faces towards the tube end to be
joined. Move the inner tube into the outer tube
to at least “the length of the LOKRING + 3 mm”
(in cases involving flared tubes, it should be up
to the stop) and apply LOKPREP between the
mated tubes. Place the tool in such a way that
the clamping jaws are positioned on the side of
the outer tube and the LOKRING can be pushed
to the end of the outer tube.
Following the actuation of the push button, the
outer tube is clamped by the clamping jaws
and the LOKRING is pushed over the outer
tube. After the assembly, the tool switches off
automatically and can be removed from the
tube joining.
01STEP
02STEP
LOKRING SINGLE RINGJAW CONSTANTPUSH BUTTON
INNER TUBE OUTER TUBEHYDRAULIC SUPPLY JAW VARIABLECLAMPING JAWS
TOOLS & FUNCTION | 45
HYDRAULIC ASSEMBLY TOOL
HYDRAULIC ASSEMBLY TOOL
The hydraulic assembly tool enables the LOKRING
connection of tubes with similar or different tube
diameters. The production of the joining requires no
special preparation of the tubes and can be carried out by
unskilled workers.The tool is connected to the LOKRING
hydraulic aggregate by a 2.8 m hydraulic hose. The sizes
of the clamping and assembly jaws are dependent on the
dimensions of the tubes that are to be joined.
Technical data
Max. tube outside diameter: 7/8“ / 22 mm*
Max. tube wall thickness: 1.5 mm*
Working pressure: up to 320 bar
Assembly time: approx. 2 sec.
Weight: approx. 2.0 kg up to 4.5 kg
Dimensions: approx. 50 x 80 x 255 mm
up to 55 x 100 x 320 mm
* Further dimensions on special request.
46 | TOOLS & FUNCTION
LIST OF PARTS
Article Article no. Voltage Tools
HA-1-R2,5L13000889
L13000890
230V, 1 Phase
400V, 3 Phase1 hydraulic assembly tool
HA-2-R2,5L13000895
L13000896
230V, 1 Phase
400V, 3 Phase1 hydraulic flaring tool
HA-2-R2,5
L13000892
L13000891
L13000893
230V, 1 Phase
230V, 3 Phase
400V, 3 Phase
2 hydraulic assembly tools
HA-3-R2,5
L13000898
L13000897
L13000899
230V, 1 Phase
230V, 3 Phase
400V, 3 Phase
1 hydraulic assembly tool
1 hydraulic flaring tool
HA-3-R2,5L13000901
L13000902
230V, 1 Phase
400V, 3 Phase3 hydraulic assembly tools
HA-4-R2,5 L13000905 400V, 3 Phase 2 hydraulic flaring tools
HA-4-R2,5L13001760
L13001761
230V, 1 Phase
400V, 3 Phase
2 hydraulic assembly tools
1 hydraulic flaring tool
HA 43 R2.5L13000907
L13000908
230V, 1 Phase
400V, 3 Phase4 hydraulic assembly tools
+
+
TYPE HA
R2,5
HYDR
AULI
C AS
SEM
BLY
TOOL
HYDR
AULI
C FL
ARIN
G TO
OL
TOOLS & FUNCTION | 47
HYDRAULIC AGGREGATE R2,5
HYDRAULIC AGGREGATE R2,5
The LOKRING hydraulic aggregate produces the required
working pressure for the flaring and assembly tools.
The aggregate is transportable and, according to its
application, it is available at each workplace. The
LOKRING tools are connected to the hydraulic aggregate
by quick connections and hydraulic hoses. To actuate the
aggregate, simply push the remote control switch that can
be found on the tool. The hydraulic pressure is controlled
by a switch and control gear, as well as control valves to
the tools.
Technical data
Power: 1.8 kW
Power supply: 230 V or 400 V
Number of revolutions: 2850 min-1
Frequency: 50 Hz
Current consumption: 5 A
Protection class: IP 54
Output: 2.45 l/min
Working pressure: 350 bar
Maximal sound pressure level LP: 78 dB (A)
Dimensions: 400 x 300 x 400 mm
Weight: 28 kg (including oil)
50 | LOKRING SERVICE SOLUTIONS
CO
MPLY W
ITH THE APPLICABLE REQUIREMENTS
LOKRING TUBE CONNECTIONS Type-examination tested
LOKRING TUBE CONNECTIONS
R134
a – R290 – R404A – R407C – R410A –
R60
0a
LOKRING SERVICE SOLUTIONS
02.
03.
04.
01.
LOKRING SERVICE SOLUTIONS | 51
ENDLESS POSSIBILITIESTHE PATENTED LOKRING® TUBE CONNECTION SYSTEM provides an innovative system of braze-free tube connections for every
repair situation in refrigeration appliances. LOKRING tube connections can be made without a great deal of force being
necessary, using simple hand assembly tools. LOKRING ensures an absolutely clean, permanent and purely mechanical
tube connection with long-term hermetic gas-tightness. This is confirmed by the special TÜV test and approval. All this
makes LOKRING tube connections one of the most economical and reliable methods of connecting refrigerant tubes.
THE BENEFITSDue to the wide range of
Also suitable for flammable refrigerants
Customer-friendly onsite service
Absolutely clean, efficient and reliable
Repair work during business hours and public access
Repair work in situations where there is a fire hazard
Light hand assembly tool without energy exertion
No brazing related quality problems
ONE SYSTEM – ENDLESS POSSIBILITIES:
Straight connections
Straight reducing connections
Connections with schrader valve
Capillary connections
Elbows
T-connections
Stoppers
AREAS OF APPLICATION to the wide
Household refrigeration appliances (refrigerators, freezers, wine coolers)
Ready-to-use refrigeration equipment (refrigeration cabinets, bars, lockers, chillers)
Refrigeration equipment for catering (sales counter refrigerators, flow-through coolers, portable cooling systems)
01.
02.
03.
04.
WITH LOKRING YOU CAN:
Replace a compressor
Replace a dryer
Replace a charging tube
Repair leaky tubes
52 | LOKRING SERVICE SOLUTIONS
COMPONENTS
JOINT LOKRING JOINT LOKRING
MATERIAL COMBINATIONS
COPPER BRASS STEEL
COMPONENTS
COPPER STEELALUMINIUM
MATERIAL COMBINATIONS
01.01.
02.02.
01. 01.
02. 02.
LOKRING SERVICE SOLUTIONS
LOKRING SERVICE SOLUTIONS | 53
TECHNICAL SPECIFICATIONS
Reference standards:EN 378-2 and ISO 14903
Max. operating pressure:25 bar* (360 psi*)
Admissible refrigerants: Suitable for all HCs, HFCs and mixtures. Not suitable for NH3.
Temperature range: -50°C up to 150°C (-58°F up to 302°F)
Tube diameter range:1.6 to 11 mm (1/16" to 3/8")
Minimum tube wall thickness:0.5 mm
Approvals:TÜV, UL (File SA12004)
TECHNICAL SPECIFICATIONS
Reference standards:EN 378-2 and ISO 14903
Max. operating pressure:25 bar (360 psi)
Admissible refrigerants: Suitable for all HCs, HFCs and mixtures. Not suitable for NH3.
Temperature range: -50°C up to 150°C (-58°F up to 302°F)
Tube diameter range:2 to 9 mm (5/64" to 5/16")
Minimum tube wall thickness:0.5 mm
Approvals:TÜV, UL (File SA12004)
BRASS / ALUMINIUM CONNECTORSTHE TYPICAL LOKRING union joint consists of two LOKRINGs and one tubular joint for the acceptance of the two tube
ends. Thanks to the conical inner contour of the LOKRING and the special outer contour of the joint, the diameter of the
connection is reduced during assembly to such an extent that the joint and the tube create a hermetically sealed metal-
to-metal connection. The lifetime gas-tightness of the fitted connection is ensured by the state of permanent elastic pre-
tension, which is produced by the radial forces of the LOKRINGs acting in the opposite direction to the tube-joint connection.
*Solutions for higher operating pressures on request.
ITALY
VULKAN Italia SrlVia dell‘Agricoltura 2 15067 Novi Ligure (AL) Phone +39 0143 310 211 Mail [email protected]
UNITED STATES OF AMERICA
American VULKAN Corporation2525 Dundee Road 33884 Winter Haven, Florida Phone +1 863 324 2424Mail [email protected]
SOUTH AFRICA
VULKAN South Africa (Pty) Ltd4 Sedgewick Road, Founders View South 1609 Lethabong, EdenvalePhone +27 21 5515194Mail [email protected]
BRAZIL
VULKAN do Brasil Ltda.Rodovia Engenheiro Constâncio Cintra, km 9113252-200 Bairro da Ponte, Itatiba -SPPhone +55 11 4894 7300Mail [email protected]
SPAIN
VULKAN Española S.A.Avda. Montes de Oca 19, Nave 7 28709 San Sebastián de los Reyes, MadridPhone +34 91 359 09 71 Mail [email protected]
NETHERLANDS
VULKAN BeneluxVan Coulsterweg 32952 CB AlblasserdamPhone +31 78 6810780 Mail [email protected]
GREAT BRITAIN
VULKAN Industries Ltd.Archer Road Armytage Road Industrial Estate HD6 1XF Brighouse, West YorkshirePhone +44 14 84 712 273 Mail [email protected]
FRANCE
VULKAN France SA12, Avenue Emile Zola, Zac de L̀ Agavon 13170 Les Pennes Mirabeau Phone +33 4 42 02 21 06Mail [email protected]
THE BEST CONNECTION – WORLDWIDE
54 | VULKAN LOKRING COMPANIES
CHINA
WUXI VULKAN Technologies Co., Ltd.Xinzhou Road, Lot 93D-3 in Wuxi Science & Technology Industrial Park214028 Jiangsu Prov. P.R.ChinaPhone +86 0510 8534 2222Mail [email protected]
KOREA
VULKAN Korea Corporation6F, Haeundae I-Park C1 Unit, 38 Marine City 2-ro Haeundae Gu, Busan, 48120, KoreaPhone +82 51 256 2473 Mail [email protected]
AUSTRALIA
VULKAN Australia PTY LTD35 Pile Road NSW 2250 Somersby Phone + 61 (02) 4340 2278 Mail [email protected]
GERMANY
VULKAN Lokring Rohrverbindungen GmbH & Co. KGHeerstraße 66, 44653 HernePhone + 49 23 25 92 21 55 Mail [email protected]
JAPAN
Nippon VULKAN Co., LTD. 6-28 Nishikobari, Ina-machi Kitaadachi-gun 362-0811 Saitama Phone + 81 4 8729 0202 Mail [email protected]
SINGAPORE
VULKAN Industries Far East Pte Ltd
37C Benoi Road, Pioneer Lot 627796, Singapore Phone +65 6578 9690 Mail [email protected]
INDONESIA
Hackforth Holding GmbH & Co. KG – Indonesia Representative Office
Graha Telkomsigma suite 4200 Jl. Kapten Soebijanto Blok COA No. 1 BSD City, 15321 – Tangerang Selatan Phone +6 22 15 37 62 48 Mail [email protected]
TURKEY
VULKAN Turkey Engineering, Marine and Industrial Products Trading Ltd. StiYesilbaglar Mahallesi, Fener Sokak No.2Beyaz Ofis B Blok No.31834893 Pendik – IstanbulPhone +90 216 680 0535 36Mail [email protected]
INDIA
VULKAN Technologies Pvt. LtdGat No. 1097/1102, Urawade RoadPirangut Industrial Area412 115 Tal. Mulshi, Dist. PunePhone + 91 20 6676 5527Mail [email protected]
VULKAN LOKRING COMPANIES | 55
56 | ONLINE-SERVICE
FOR FURTHER INFORMATION, PLEASE REFER TO OUR WEBSITE WWW.VULKAN.COM.
ONLINE-SERVICE
AUTHORISED DISTRIBUTORSwww.vulkan.com/en-us/lokring/contact
VIDEOS www.vulkan.com/en-us/lokring/videos/
TECHNICAL DOCUMENTATION AND SUBMITTALwww.vulkan.com/en-us/lokring/downloads/technical-documentation-and-submittal
CATALOGUES & BROCHURES www.vulkan.com/en-us/lokring/downloads/
CERTIFICATES www.vulkan.com/en-us/lokring/downloads/certificates/
CONCEPT AND DESIGN:Hackforth Holding GmbH & Co. KG VULKAN MarketingHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
VALIDITY CLAUSE The LOKRING® tube connection technology represents a proven method of producing hermetically sealed metal-to-metal tube connections. The LOKRING® tube connections are mainly used in the refrigeration and air conditioning industries. The use of LOKRING® tube connection technology in other fields is to be discussed with VULKAN Lokring. VULKAN Lokring as the supplier is responsible for the qualitative delivery of the tube connections and tools which are ordered from this catalogue.
The purchaser is responsible for the use of the LOKRING® tube connections and tools as directed. The assembly has to be done accordingly to the instructions and exclusively with original LOKRING® parts. The present LOKRING Single Ring catalogue shall replace all previous editions, any previous printings shall no longer be valid. The data contained in this catalogue refers to the valid state of affairs in time of the copy deadline. Any changes due to technical progress are reserved.
Status: 04/2018
All duplication, reprinting and translation rights are reserved. Further remarks for the LOKRING® assembly are available on request.
Article no.: L19000007
PUBLISHER:VULKAN Lokring Rohrverbindungen GmbH & Co. KGHeerstraße 66, 44653 Herne / GermanyTel.: + 49 (23 25) 922-155Fax: + 49 (23 25) 51222 E-mail: [email protected]
PREPRESS:Hackforth Holding GmbH & Co. KGVULKAN MarketingHeerstraße 66, 44653 Herne / GermanyE-mail: [email protected]
IMPRINT | 57
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