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Edward Valves

Maintenance Manual for Edward

Equiwedge

Gate Valves V-378 R1

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Flow Control Division

Edward Valves Introduction and Scope

IntroductionThis manual has been prepared to serve asa guide for maintenance of EdwardEquiwedge gate valves, all of whichfeature the pressure seal bonnet jointconstruction. Although rigid metallurgical,non-destructive examination, physical andvisual inspection is standard procedure forEdward Valves products, it is inevitablethat some valves, after a period of time,will require repairs. This manual will assistyou in restoring the valve to good workingcondition with a minimum of time andexpense.

ScopeBefore starting any repairs, it will behelpful to have some understanding of thevalves physical construction. Consequently,the five basic types of pressure seal con-struction are discussed and illustrated first.All Equiwedge gate valves employ one ofthese five basic types.The next major section of this manualdiscusses the more common serviceproblems, and explains the reason forcertain failures. The reason for the problemshould be understood before work is actu-ally started.Then, the procedure to be followed in mak-ing the repair is explained. This section

includes normal valve maintenance as wellas major valve repairs. Field repair equip-ment available from Edward Valves isdescribed and illustrated. Valve lubrication

and welding rod recommendations arealso included. These procedures should beadequate for almost any Equiwedge gatevalve repair or maintenance problem thatmay arise.Following is a section describing thedisassembly procedure for the various

valve components; for example, manualhandwheel, manual geared actuators orelectric actuators, valve yokes, and the fivebasic bonnet types. It is very important thatthis manual be studied before anydisassembly work is done to avoid need-less work and loss of time by selecting theimproper procedures.The last sections include reassembly instruc-

tions and available maintenance equip-ment and information on the various typesof actuators, both manual and electrical.

Figure No. Class Pressure Seal Type Size

1611-1611Y 600 I & II 2 1 2 to 28

1711Y Special Class 600 I & II 2 1 2 to 28

1911-1911Y 900 III, IV, & V 2 1 2 to 28

14311Y Special Class 900 III, IV, & V 2 1 2 to 28

11511-11511Y 1500 III, IV, & V 2 1 2 to 24


12511-12511Y 2500 III, IV, & V 2 1 2 to 24


Gate Valve Figure Numbers Described in this Manual

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Edward Valves Description of Equiwedge Gate Valve Types

Type I is a flanged yoke design with aseparate gasket retainer ring, both ofwhich are held to the body by capscrews. The bonnet retainer is screwedonto the bonnet and cap screws arescrewed down on top of the body to forcethe bonnet into contact with the gasket.See illustration No. 1 .

Type II is a flanged yoke design with orwithout a separate bonnet retainer ring,both of which are held on the body bycap screws or studs and nuts. The bonnetis pulled up into contact with the gasketwith studs and hex nuts. See illustrations N os. 2A and 2B, pgs. 4 and 5 .

Type III is a wishbone yoke design boltedto the body. It has a segmental retainingring, spacer ring and a screwed onbonnet retainer equipped with push downbolts to pull the bonnet up into contactwith the gasket. See illustration No. 3,pg. 5 .

Type IV is a wishbone yoke designed bolt-ed to the body. It has a segmentalretaining ring, spacer ring and separatebonnet retainer with pull up studs screwedinto the bonnet to contact the gasket. See illustration No.4, pg. 5 .

Type V has a yoke lock ring connection tothe body with a segmented ring, gasketretainer and a separate bonnet retainerwith studs screwed into the bonnet to pullup the bonnet against the gasket. See illustration No. 5, pg. 5 .

Illustration No. 1 Illustration No. 2ASize 2-1/ 2 & 3 - Figure 1611 and 1611Y Size 4 -Figure 1611 and 1611YSize 2-1/ 2 & 3 - Figure 1711Y Size 4 - Figure 1711Y

Valve Type I Valve Type IIA

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Edward Valves Description of Equiwedge Gate Valve Types (cont.)

Illustration No. 2BSize 6 - 28 - Figure 1611 and 1611YSize 6 - 28 - Figure 1711YNOTE: Size 6 and 8 valves are wishbone yoke design with flange.

Valve Type IIB

Illustration No. 4Size 4 - 8 - Figure 1911-1911Y-14311YSize 4 - 8 - Figure 11511-11511Y-12011YSize 4 - 8 - Figure 12511-12511Y-14411Y

Valve Type IV

Illustration No. 3Size 2-1/ 2 - 3 - Figure 1911-1911Y-14311YSize 2-1/ 2 - 3 - Figure 1151 1-11511Y-12011 YSize 2-1/ 2 - 3 - Figure 1251 1-12511Y-14411 Y

Valve Type III

Illustration No. 5Size 10 - 28 - Figure 1911-1911Y-14311YSize 10 - 24 - Figure 11511-11511Y-12011YSize 10 - 24 - Figure 12511-12511Y-14411Y

Valve Type V

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Edward Valves Disassembly Procedure for Equiwedge Gate Valves

IntroductionStep-by-step disassembly procedures aredescribed below for all types ofEquiwedge pressure seal gate valves,including those with manual and motoractuators. It is important that thefollowing instructions be read and under-stood before any specific disassemblywork is attempted.First determine the problem area.Maintenance problems can be divided intothree major areas, and the area involvedwill affect the disassembly procedure.These areas,in general, are:

Area 1 The handwheel, or a manual orelectric motor actuator.

Area 2 The yoke assembly including theyoke, yoke bushing, and bearings.

Area 3 The valve internals including thebonnet, body, pressure seal gas-ket, stem, gate, and seats.

If the problem is in Area 1, usually a man-ual or electric actuator will be involvedand not a handwheel; see Appendix A,pg. 29.

If the problem is in Area 2, it will benecessary to remove the valve actuatoronly if the valve is handwheel actuated orhas a torque-only manual or electricactuator. See procedure on pgs. 28 and29 and select the proper one.If the problem is in Area 3, two methodsare available. In method 1 the yoke andactuator assembly may be removed fromthe valve body as a unit. This saves time,but requires adequate clearance. Inmethod 2 the actuator and yoke areremoved separately.

If problems are suspected to exist in anycombination of Area 1, 2 or 3, then eachof the respective procedures must befollowed.

CAUTIONAS A GEN ERAL REMIN DER, MAKE SURE ALL THE PRESSURE IS RELIEVED, BOTH UPSTREAM AN D DO W NSTREAM AN D IN THECENTER CAVITY, BEFORE DISASSEMBLY WORK IS STARTED. Exceptions to this rule are noted below.1. For service In Area 1

If pressure is to be maintained in the valve, backseat to full open position. The actuator, both manual or electrical, torque-only andtorque and thrust types, may be removed. The blowout force on the stem due to pressure in the line will keep the stem on the backseat.

2. For service in Area 2If pressure is to be maintained in the valve, the yoke may be removed on Types III, IV, and V. The blowout force on the stem dueto pressure in the line will keep the stem on the backseat. UN DER N O CIRCUMSTAN CES SHOULD THE YOKE BE REMOVED ONTYPES I AN D II W HILE UNDER PRESSURE.

3. For service In Area 3

Close the valve fully and then open 1/ 8 (3mm) . SERVICE AREA 3 W ITHOUT PRESSURE IN LIN E.

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Edward Valves

IntroductionThe reassembly procedures in this manualare not as detailed as the disassemblyprocedures since, in most cases, just thereverse procedure is used. However, step-by-step instructions are provided for eachof the five bonnet types. In addition, thefollowing general points should beconsidered:

1. The most important consideration inthe reassembly of pressure sealvalves is cleanliness. All flaky rustand dirt should be removed from allparts with a wire brush and emerycloth. Oil and grease should beremoved with a suitable solvent toprevent any foreign material from col-lecting on the sealing and seatingsurfaces.

2. All threaded parts should be relubri-cated, such as cap screws, nuts,studs, and bonnet retainer threads,wi th a product such as N ever-Seez .The stem threads should be washedwith solvent, dried, and a new appli-cation of high temperature EP(extreme pressure) grease applied tothe threads. See pg. 8 for recommendations .

3. An important feature of Equiwedgegate valves is the two piece gate witha spacer ring between the twohalves, illustrated in figure 13A . Thisspacer can be increased in thicknessto compensate for material removedfrom the seats and gates by normalor extensive refinishing of these sur-faces. This is a unique design feature.For every .005 (.13mm) (total) that

is removed from the seating surfaces,the gate seats lower in the bodyapproximately 0.032 (.81mm) . Thisamount of metal removal will notrequire any adjustment to the gatespacer ring thickness.But, for example, if 0.050(1.27mm) were removed from thecombined seating surfaces, the gatewill seat 0.312 (7.92mm) lower inthe body and this wear can be com-pensated for by making a new spac-er ring. In addition, the guide railson each gate half will require grind-ing by half the amount added to thespacer ring to restore an adequateamount of clearance. The gate spac-

er ring material is stainless steel type410 heat treated to 26 to 32 RC.

Reassembly Procedures for Equiwedge Gate Valves

Stem-Gate Spacer Ring Assembly

Illustration No. 13A

STEM

GATE HALF

GATE HALF

SPACER RING

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Edward Valves Exploded View

Illustration No. 13B

34

21

20

191817

16

15

14

1211

13

10

9

8

7

65

4

3

2

1

33

32

31

30

29

28

27

26

25

24

23

22

Typical Exploded View of Equiwedge Gate ValvePart Names for Exploded View of Typical Equiwedge Gate Valves

1. Body2. Test Nipple3 . Seat Ring4. Gate5. Gate Spacer Ring6. Stem7. Hex N ut8. Yoke Lock Ring9. Stud

1 0. Bonnet11. Pressure Seal Gasket12. Spacer Ring13. Segmental Retaining Ring14. Cap Screws

15. Bonnet Retainer Ring16. Junk Ring17. Gland Stud18. Packing19. Gland20. Gland Bushing21. Gland N uts22. Yoke23. Grease Seal

2 4. Bearing25. Key26. Yoke Bushing2 7. Bearing28. Preload Shim Kit29. Bearing Retainer30. Grease Seal31. Cap Screws32. Handwheel33. Handwheel Locknut34. Set Screw

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Edward Valves Reassembly Instructions

The yoke bushing threads should becleaned in the same manner as the otherthreaded parts and regreased. The samelubricant should be used to regrease theyoke bushing bearings through the lubefitting. See pg. 8 for lubricant recommendations . Follow these guidelines:

1. Replace the stem packing.2. Replace the pressure seal gasket with a

new gasket.3. Observe all match marks assigned dur-

ing disassembly so that part orientationis maintained.

4. Reassemble stud nuts and cap screwsusing a torque wrench. See Table 2 , pg.7, for recommended torque values .

5. W hen reassembling the bearings in theyoke assembly, use the following proce-dure to obtain the proper clearance orpreload.

Handwheel Actuated Valves1. Equiwedge gate valves with stems

1-7/ 8 (47.6mm) diameter and smallerare equipped with needle bearings. See illustration No. 14 . One bearing set isplaced below the yoke bushing collarand one set above. All parts areretained by a screwed-in bearing retain-er. This bearing retainer has spannerwrench holes on the top face for adjust-ment and is locked in place with anylock set screw on the side of the yokenear the top.

2. The needle bearings should not have apreload. Rather, a slight amount ofclearance is recommended. Tightendown the bearing retainer using a span-ner wrench until the bearing retainer issnug, then back it off 15 to 20 degrees.This is equal to 0.004 to 0.005(.10mm to .13mm) clearance.

3. Tighten the set screw and relube throughthe lube fitting.

4. On valves with stem diameters 2(50.8mm) and greater, the yoke assem-bly is equipped with tapered roller bear-ings. One bearing set is placed belowthe yoke bushing collar and one set isplaced above this collar. All parts areretained by a bolted-on bearingretainer.

5. Tapered roller bearings do require apreload, See illustration No.15 .Preloading is accomplished by using ashim kit. If the bearings are not to bereplaced, use all the shims that were inthe original assembly. If the bearings

are to be replaced, a new shim kitshould be used.

Yoke Assembly With Needle Bearings

Illustration No. 14

Yoke Assembly With Taper Roller Bearings

Illustration No. 15 20

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Edward Valves Reassembly instructions (cont.)

Tapered Roller BearingPreload Instructions

1. Bearing Assembly - Install the bear-ings, grease seals and yoke bushingin the yoke.

2. BEARING PRELOAD WARNIN G FAILURE TO FOLLOW IN STRUC-

TIONS MAY RESULT IN BEARIN GFAILURE. See illustration No. 16 .a. Use a micrometer to measure the

thickness of the bearing retainerflange at each measurement hole.N umber each measurement holewith a grease pencil. Record themeasurements.

b. Mark the bearing retainer flangeand yoke with a grease pencil inorder to know the relative positionof parts and remove the bearingretainer flange.

c. Use a micrometer to measure thethickness of the bearing preloadwasher and record the measure-ment.

d. Install a bearing preload washer(tool). See Table 4 for dimensions.Install the bearing retainer flange(make certain that mating surfacesare clean) at alignment positionmarks and align the bolt holes.Install 3 or 4 cap screws to securethe bearing retainer at 90 or12 0 intervals. Use a depthmicrometer to level the bearingretainer flange and take readingsto ensure that the flange remainslevel as the torque is increased in

small increments. The preloadtorque is indicated in Table 5 foreach applicable cap screw size.Rotate the yoke bushing after eachincrease in torque.

e. Extend a depth micrometer intoeach of the holes located in aabove until it hits the top of theyoke. Record the measurements.Calculate the average dimensionand record.

f. Remove the bearing retainerflange, cap screws and bearingpreload washer (tool).

g. Add the average dimensionrecorded in a to the measure-

ment recorded in c and recordthe result.h. Subtract the measurement record-

ed in efrom the average dimen-sion recorded in g and recordthe result.

i. Shim stock thickness equal to theresult recorded in h must beinstalled between the top bearing

and the bearing retainer flange.

Illustration No. 16

Bearing Preload Instruction

PRELOAD CAP SCREW STORQUE FROM TABLE 5

PRELOAD WASHER

TABLE 4

CAP SCREW S TORQUEFROM TABLE 5

BEAR RETAIN ERFLAN GE

YOKE

SHIM STOCK

YOKE BUSHING

3 M EASURING HOLES

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Edward Valves Reassembly Instructions (cont.) j. Install the bearing retainer flange on

the yoke (make certain that the matingsurfaces are clean), align the positionmarks and align the holes in the bear-ing retainer flange with the holes inthe yoke. Install 3 or 4 cap screws at900 intervals. Use a depth micrometerto level the bearing retainer flange

and take readings to ensure that theflange remains level while the torque

is increased in small increments.Rotate the yoke bushing after eachincrease in torque. Apply a preloadtorque indicated on Table 5 to the capscrews, use a depth micrometer totake measurements and compare themeasurements with those taken in step(a) above. If the measurements are the

same as those recorded i n step a ,then the flange has bottomed on the

yoke. If the measurements are greaterthan a measurements, then theflange has not bottomed and the bear-ing preload procedure should berepeated. Install the remaining capscrews and tighten in a star patternuntil the torque indicated in Table 6 isdeveloped. Be careful to keep the

bearing retainer flange level whiletorque is applied to the cap screws.

Table 4Dimensions For Bearing Preload Washer - in inches (mm)

Valve Stem Diameter Washer OD Washer ID Washer Thickness+.005 (.13) +.010 (.25) +.001 (.03)2.000 (50.80) 5.100 (129.54) 4.56 (115.8) .187 (4.75)2.125 (53.98) 5.100 (129.54) 4.56 (115.8) .187 (4.75)

2.250 (57.15) 5.687 (144.45) 5.15 (130.8) .187 (4.75)2.375 (60.32) 6.090 (154.69) 5.38 (136.7) .187 (4.75)2.500 (63.50) 7.110 (180.59) 6.40 (162.6) .187 (4.75)2.625 (66.68) 7.075 (179.70) 6.36 (161.5) .187 (4.75)2.750 (69.85) 6.985 (177.42) 6.30 (160.0) .187 (4.75)2.875 (73.02) 8.110 (205.99) 7.34 (185.9) .187 (4.75)3.000 (76.20) 8.985 (228.22) 8.12 (206.2) .187 (4.75)3.250 (82.55) 9.985 (253.62) 9.00 (228.6) .187 (4.75)3.500 (88.90) 11.360 (288.54) 10.25 (260.3) .187 (4.75)

3.750 (95.25) 12.485 (317.12) 11.25 (285.8) .187 (4.75)4.250 (107.95) 12.485 317.12) 11.25 (285.8) .187 (4.75)

Table 5Bearing Retainer Preload TorqueCap Screws Threads Per Torque In Ft. Torque No. of Cap

Diameter Inch Pounds In NM Screws3/ 4 10 20 27 3 or 47/ 8 9 35 47 3 or 4

1 8 50 68 41-1/ 4 7 135 183 4

Table 5ACap Screws Pitch Torque No. of Cap

Diameter in NM Screws16 2 120 3 or 420 2.5 240 3 or 4

24 3 400 3 or 430 3.5 880 4

Table 6Bearing Retainer Final TorqueCap Screws Threads Per Torque in Ft. Torque

Diameter Inch Pounds in NM3/ 4 10 165 2247/ 8 9 265 360

1 8 405 5501-1/ 4 7 895 1215

Table 6ACap Screws Pitch TorqueDiameter in NM

16 2 12020 2.5 24024 3 40030 3.5 880

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Edward Valves

Reassembly Instructions for Valves with Metal Gaskets Only(cont.)

4. Assemble a new pressure seal gas-ket, the spacer ring, junk ring andgland on the bonnet. Lift the bon-net using a hoist if necessary, andplace it over the stem and lowerinto the body. Be very careful notto mar the pressure seal gasket orother machined surfaces.

5. Install the gasket retainer ring seg-ments in the body groove. Placethe bonnet retainer over the stemonto the top of the body.

6. Lift the stem and bonnet assemblyup through the gasket retainer andrealign the studs with the bonnetretainer and match marks.

7. Assemble the nuts on the bonnetretainer studs and snug them up.

8. Lift the yoke assembly over thestem and engage the stem threadsby turning the yoke bushing coun-terclockwi se. W hen the yoke con-tacts the body, align the bolt holes(or match mark) and continue toturn the yoke bushing until the stemcontacts the backseat firmly.

9. Install the cap screw (or yoke lockring) and tighten the cap screws(or studs and nuts) to the torquevalues shown on Table 2, pg. 7 .See step 13 below.

10. Tighten the bonnet retainer nutscarefully using a torque wrench ina star pattern to the values shownon Table 2, pg. 7.

11. Install new packing following theinstructions on pg. 6. Place thegland in position and tighten thegland bolts evenly.

12. Reassemble the handwheel (oractuator) using the reverse of theinstructions for disassembly.

13. After the valve has been pressur-ized,retighten the bonnet retainernuts to the same torque valuesused in step 10. This is important.

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Edward Valves

Procedures For Removing ManualAnd Electro-mechanical ActuatorsFrom Valve YokesEquiwedge pressure seal gate valves areoften equipped with a variety of manualand/ or electro-mechanical actuators. Anumber of these are illustrated in this sec-tion. Basically, there are two types of actu-ators:

(a) Those which take both torque andthrust forces.

(b) Those which supply only the torqueto open or close the valve.

In type (a), the actuator is equipped with astem nut and thrust bearings that can with-stand the thrust and torque loads imposed.

THIS TYPE SHO ULD N OT BE REMOVEDW ITH PRESSURE IN THE VALVE.In type (b),the actuator is connected to thevalve yoke bushing by a key or spline, orby other means, and delivers only thetorque load.

The most common is type (a) because ofthe non-revolving, rising stem. This type isused in both manual and electro-mechani-cal actuators.

TYPE (a) TORQUE AND THRUSTACTUATOR DISASSEMBLYLimitorque Actuator Illustration No. 18

Rotork Units Illustration No. 19 Torkmatic units (Manual)Illustration No. 20, pg. 29

Auma units Illustration No. 21, pg. 29 Follow these guidelines:

1. Position the valve gate just off theseat.

2. Disconnect the electrical wiring to theactuator.

3. Make sure the packing gland nutsare tight.

4. Position a chain hoist of suitablecapacity to support the actuator sothat the handwheel can be rotated.The pull point must be directly in linewith the stem.

5. Remove all nuts or cap screws fromthe under side of the yoke flange.

6. Turn the actuator handwheel to closethe valve. This will cause the actuatorto rise and unthread the stem nutfrom the stem. As this takes place, theweight of the actuator should betaken by the hoist to prevent damageto the stem threads.

7. W hen the stem threads are disen-gaged, lift the actuator clear of thestem and place it down on a cleanarea for further disassembly, ifrequired. If there is additional workto do on the valve, refer to the prop-er valve type and proceed to disas-semble the valve.

Appendix A

Limitorque Actuator Rotork Actuator

Illustration No. 18 Illustration No. 19

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Edward Valves

Appendix A (cont.) TYPE (b) TORQUE ONLYDISASSEMBLY PROCEDURELimitorque Illustration N o.22 AUMA Illustration N o.23

1. Position the valve gate just off theseat.

2. Disconnect the electrical wiring to theactuator.

3. Position a chain hoist of adequatecapacity to the actuator. The pullpoint must be directly in line with thevalve stem.

4. Remove all nuts or cap screws fromunder the flange.

5. Using a hoist, raise the actuatorabove the yoke bushing and positionaway. If the actuator is keyed to theyoke bushing, remove the key so itwill not be lost.

If there is further work to do on thevalve, refer to the proper valve type andproceed with disassembly.

CAUTION:

UPON REASSEMBLY OF A VALVE EQUIPPEDW ITH AN ELECTRO-MECHANICAL

ACTUATOR, THE OPEN AND CLOSED LIMITSWITCHES MUST BE RESET. PLEASE REFER

TO THE MAIN TENAN CE MAN UAL PRO-VIDED BY THE ACTUATOR MANUFACTURER

FOR APPROPRIATE IN STRUCTIONS.

WA R N I N G

SHOULD IT BECO ME NECESSARYTO CHANGE THE TORQUE SW ITCHSETTING FOR AN Y REASON, YOUR

LOCAL EDWARD VALVES REPRESENTATIVESHOULD BE CONTACTED IN ORDERTHAT A CORRECT NEW SET CAN BE

OBTAINED FROM THE FACTORY.

The torque switch of the motor actuatedvalve is set during factory assembly toclose the valve against the specified differ-ential pressure and requires the same spe-cial attention for resetting.

Illustration No. 20

Illustration No. 21

Illustration No. 23Illustration No. 22

Torkmatic Manual Actuator

Auma Actuator

Limitorque Actuator Auma Actuator

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Edward Valves

Valve Tools Available For RentalThe following tools are available from theEdward Valves Raleigh plant on a rentalbasis:

Dexter Seat Refinishing Machines forvalves sizes 3 to 28. See illustration N o.24 .

Portable boring machines that can be usedto machine the pressure seal area of thebody in case of damage or because ofweld repair. See illustration no. 25.Contact your local Edward Valvesrepresentative for details on cost andavailability.

A group of skilled service representatives isalso available to assist in repairs.

Appendix BTypical Dexter Gate Valve Seat

Refinishing MachinePortable Boring Machine

Attached To Gate Valve Body

Illustration No. 25Illustration No. 24

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Edward Valves

Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life.However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous applications under a wide variety of industrial service conditions. Although Flowserve can (and often does)provide general guidelines, it cannot provide specific data and warnings for all possible applications. The purchaser/user must therefore assume the ultimate responsibility for the proper sizing and selection, installation, operation,and maintenance of Flowserve products. The purchaser/user should read and understand the Installation Operation Maintenance (IOM) instructions included with the product, and train its employees and contractors in the safe use ofFlowserve products in connection with the specific application.

While the information and specifications contained in this literature are believed to be accurate, they are supplied for informative purposes only and should not be considered certified or as a guarantee of satisfactory results by

reliance thereon. Nothing contained herein is to be construed as a warranty or guarantee, express or implied, regarding any matter with respect to this product. Because Flowserve is continually improving and upgrading its productdesign, the specifications, dimensions and information contained herein are subject to change without notice. Should any question arise concerning these provisions, the purchaser/user should contact Flowserve Corporation at anyone of its worldwide operations or offices.

2003 Flowserve Corporation, Irving, Texas, USA. Flowserve and Edward Valves are registered trademarks of Flowserve Corporation. V-378 R1 3/03 Printed in USA

FLOWSERVE CORPORATIONFLOW CONTROL DIVISIONEdward Valves1900 South Saunders StreetRaleigh, NC 27603 USA

Toll- Free Telephone Service(U. S. and Canada)Day: 1-800-225-6989

After Hours Customer Service1-800-543-3927

US Sales OfficesPhone: 919-832-0525Facsimile: 919-831-3369Facsimile: 919-831-3376

Visit Our Websitewww.edwardvalves.com

For more information about Flowserve Corporation, contact www.flowserve.com or call USA 1-800-225-6989.

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