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Fisher

r

A41 High Performance Butterfly Valve

Contents

Introduction

1

...............................................................

Scope of Manual

1

.................................................

Description

1

.........................................................

Specifications

2

....................................................

Educational Services

2

...........................................

Installation

5

................................................................

Valve Orientation

6

...............................................

Maintenance

9

.............................................................

Packing Maintenance

12

........................................

Seal Ring Maintenance for NPS 3 through 12

13

.....

Seal Ring Maintenance for NPS 2

19

.......................

Disc, Drive Shaft and Bearing Maintenance for

NPS 3 through 12

20

.........................................

Disc, Drive Shaft and Bearing Maintenance for

NPS 2

24

.............................................................

Actuator Mounting

26

...........................................

Parts Ordering

27

.........................................................

Retrofit Kits for ENVIRO-SEAL

t

Packing

27

............

Repair Kits for ENVIRO-SEAL Packing

28

..................

Parts List

28

...............................................................

Figure 1. Fisher A41 Valve

W9269

Introduction

Scope of Manual

This instruction manual includes installation, maintenance, and parts information for Fisher A41 high performance

butterfly valves (figure 1). Refer to separate instruction manuals for information covering the power on-off actuator

and accessories.

Do not install, operate, or maintain A41 valves without being fully trained and qualified in valve, actuator, and

accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to

carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings. If you

have any questions about these instructions, contact your Emerson Process Management sales office before

proceeding.

Description

The A41 high performance butterfly valves have eccentrically mounted discs to reduce wear and reduce torque

requirements. The valve includes filled-PTFE or graphite packing rings that electrically bond the shaft to the valve

body. This valve has a Double D drive shaft end, and soft or metal seal rings for use in a wide variety of applications.

Instruction Manual

A41 Valve

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Содержание A41

Страница 1: ...d and qualified in valve actuator and accessory installation operation and maintenance To avoid personal injury or property damage it is important to carefully read understand and follow all the contents of this manual including all safety cautions and warnings If you have any questions about these instructions contact your Emerson Process Management sales office before proceeding Description The ...

Страница 2: ...II Seal No visible leakage for this bidirectional seal per MSS SP 61 For optional Phoenix III Fire Tested seal consult your Emerson Process Management sales office Flow Characteristic Approximately linear Flow Direction See figure 4 Disc Rotation Clockwise to close when viewing the drive shaft end through 90 degrees of disc rotation see figure 7 Valve Classification Face to face dimensions of NPS ...

Страница 3: ...et Pressure for M35 1 and CW2M Valve Bodies 1 TEMPERATURE M35 1 CW2M _C Bar 46 to 38 93 149 204 260 15 8 13 8 13 1 12 7 11 7 41 3 36 5 34 1 33 1 32 8 82 7 72 7 68 2 65 8 65 5 20 0 17 9 15 9 13 8 11 7 51 7 51 7 50 3 48 6 45 9 103 4 103 4 100 3 97 2 91 7 TEMPERATURE CL150 CL300 CL600 2 CL150 CL300 CL600 2 _F Psig 50 to 100 200 300 400 500 230 200 190 185 170 600 530 495 480 475 1200 1055 990 955 950...

Страница 4: ...325 to 1000 Disc Material S31600 CG8M 198 to 538 198 to 538 325 to 1000 325 to 1000 Shaft Material S20910 S17400 198 to 538 62 to 427 325 to 1000 80 to 800 Bearing Material PEEK PTFE lined Metal 73 to 260 198 to 538 100 to 500 325 to 1000 Packing Material PTFE V rings Graphite rings 46 to 232 198 to 438 50 to 450 325 to 1000 Seal Ring PTFE Standard 46 to 232 50 to 450 Reinforced PTFE Soft Seal Rin...

Страница 5: ...heel mounted on the valve If the valve or actuator have been purchased separately or if the actuator has been removed for maintenance mount the actuator on the valve and adjust actuator travel before inserting the valve body into the line This is necessary due to the measurements that must be made during the actuator calibration adjustment process Refer to the Actuator Mounting section of this man...

Страница 6: ...en installing the valve it is highly recommended that the valve drive shaft be horizontal as shown in figure 4 Valve Direction The high performance butterfly valve is designed to allow flow in either direction when in the open position When in the closed position high pressure should be applied to a specific side of the disc to provide best performance and optimal valve life see list of seal types...

Страница 7: ...ed the disc will open rapidly 2 With the disc in the closed position install line flange gaskets and insert the valve between the pipeline flanges WARNING If spiral wound gaskets are to be used with an NPS 3 or 4 CL150 or 300 single flange valve special spiral wound gaskets conforming to the dimensions listed in table 5 MUST be used Improperly sized gaskets may increase the likelihood of 1 excessi...

Страница 8: ...Systems will not require this initial re adjustment Refer to the separate ENVIRO SEAL Packing System for Rotary Valves Instruction Manual D101643X012 for repair and adjustment procedures 3 For hazardous atmosphere or oxygen service valves read the following Warning and provide the bonding strap assembly mentioned below if the valve is used in an explosive or hazardous atmosphere WARNING The valve ...

Страница 9: ...FLOW ARROW SHOWS FLOW DIRECTION FOR NOVEX METAL SEAL AND PREFERRED FLOW DIRECTION FOR PHOENIX METAL SEAL Maintenance Valve parts are subject to normal wear and must be inspected and replaced as necessary The frequency of inspection and replacement depends upon the severity of service conditions Instructions are given in this section for replacing packing seal ring disc shaft bearings and other val...

Страница 10: ...des of the valve D Vent the pneumatic actuator loading pressure and relieve any actuator spring precompression D Use lock out procedures to be sure that the above measures stay in effect while you work on the equipment D The valve packing box may contain process fluids that are pressurized even when the valve has been removed from the pipeline Process fluids may spray out under pressure when remov...

Страница 11: ...ge is caused by scratches on the packing box wall Carefully inspect the packing box bore and valve drive shaft when the packing is removed Use the following steps to remove the actuator and to remove and replace the packing parts Removing the Actuator WARNING Refer to the WARNING at the beginning of the Maintenance section in this instruction manual 1 Isolate the control valve from the line pressu...

Страница 12: ...t and the valve body with respect to the actuator drive shaft Refer to the Actuator Mounting section and figure 7 for the location of the mark on the actuator end of the valve drive shaft Additional information is provided in the actuator manual to assist with disassembly re assembly and travel adjustments 6 Remove the actuator mounting screws key 14 7 Remove the actuator from the valve and remove...

Страница 13: ...rsonal injury or property damage 1 Install the new packing parts see figure 6 Install the packing follower and finger tighten the packing flange nuts onto the studs only enough to stop leakage 2 If the valve was equipped with a bonding strap assembly figure 5 re install the assembly 3 Refer to the Actuator Mounting section of this manual If necessary refer to the separate actuator instruction manu...

Страница 14: ...RICANT KEY 113 PACKING FLANGE STUD KEY 100 PACKING BOX RING KEY107 PTFE V RING PACKING GRAPHITE RIBBON PACKING ENVIRO SEAL PTFE PACKING SYSTEM ENVIRO SEAL GRAPHITE PACKING SYSTEM STANDARD PACKING NOTE INCLUDES ZINC WASHERS FOR GRAPHITE RIBBON PACKING ONLY 11B5895 A 10B6817 A B2435 C0785 2 1 1 VALVE BODY KEY 1 SHAFT STEP SPRING COMPRESSED REDUNDANT SHAFT RETENTION REDUNDANT SHAFT RETENTION PACKING ...

Страница 15: ...SURFACE AS SHOWN LOCATION OF C MARKINGS FOR NPS 2 ONLY DISC IN THE CLOSED POSITION DISC IN THE OPEN POSITION TO OPEN DISC STOP INDICATES APPROXIMATE DISC POSITION ACTUATOR END OF SHAFT RETAINER RING KEY 2 Figure 8 Removing the Retainer Ring A6359 KNOCK OUT FLAT FLAT END PUNCH CAUTION During any of the following steps do not rotate the disc past 90 degrees in the open direction Rotating the disc pa...

Страница 16: ...g screws key 23 If necessary use two of the retainer screws in the tapped holes in the retainer ring key 2 to jack the retainer ring loose from the valve body surface 2 Remove the seal ring from the valve body seal ring slot D For valves with PTFE seal rings remove the spring key 5 as it may be necessary to re install the spring into the new PTFE seal ring D For valves with metal seals remove the ...

Страница 17: ...ring and work the spring into the recess in the PTFE seal ring c Install the seal ring key 4 assembly into the slot in the valve body as shown in figure 9 Refer to installing the retainer ring steps below 2 Installing metal seals Note For metal seals only it may be necessary to apply dry film lubricant or equivalent moly disulfide to the sealing surfaces of the disc seal and the seal retainer groo...

Страница 18: ...1558 3 NPS 2 METAL SEAL 3 Installing the retainer ring a Valves with PTFE seal rings do not require a retainer ring gasket key 16 b Valves with metal seals require a retainer ring gasket key 16 The gasket is not pre punched for insertion of retainer screws The holes are not necessary for press fit retainer rings CAUTION When handling the new retainer ring gasket be sure to avoid kinking cracking o...

Страница 19: ...o drive the disc closed Also you may need to use the hammer to drive the disc open for the first few times 5 For valves with screwed retainer rings a Match the retainer ring with the holes in the valve by punching two holes in the gasket to locate where the screw holes are in the valve b Lay the retainer ring over the gasket while lining it up with the punched holes Also insert two retainer screws...

Страница 20: ...or adjustment process Refer to the Actuator Mounting section of this manual and to the separate actuator instruction manual for mounting and adjusting instructions 7 The valve should be closed during seal ring installation to permit accurate centering of the seal To install the new seal ring For a PTFE seal if the spring key 5 was disassembled hook the spring ends together Work the spring into the...

Страница 21: ...ve body cavity To avoid personal injury and damage to disc sealing surfaces support the disc to prevent it from falling as the shaft is being removed 8 Pull the shaft out of the valve body and remove the disc key 3 from the valve body bore 9 If the packing is to be replaced remove all packing parts from the valve body Upon re assembly of the valve refer to the Packing Maintenance procedures to rep...

Страница 22: ...to be held in place when installing the disc and inserting the shaft through the valve body bearings bearing spacer and disc To help hold the spacer in place apply lubricant 2 Position the disc to be certain that the holes in the disc are towards the actuator side of the valve Carefully insert the disc into the valve body bore while protecting the disc sealing surfaces 3 Install the shaft key 8 D ...

Страница 23: ... 127 0 4 83 15 88 12 7 4 57 7 62 127 0 4 83 19 05 12 7 5 23 8 89 127 0 4 83 25 4 12 7 7 00 10 41 127 0 4 83 31 75 19 05 10 00 13 59 146 0 6 35 38 1 19 05 11 56 15 24 146 0 6 35 44 45 19 05 31 21 16 76 146 0 6 35 Inch 0 5 0 50 0 145 0 250 5 00 0 19 0 625 0 50 0 180 0 300 5 00 0 19 0 75 0 50 0 206 0 350 5 00 0 19 1 0 50 0 275 0 410 5 00 0 19 1 25 0 75 0 395 0 535 5 75 0 25 1 5 0 75 0 455 0 600 5 75 ...

Страница 24: ...oothly 9 Install the seal ring assembly using the appropriate instructions in the Seal Ring Maintenance procedures 10 Install the packing parts using the appropriate instructions provided in the Packing Maintenance procedures Refer to the Actuator Mounting and Adjustment procedures before installing the valve in the pipeline Disc Shaft Assembly and Bearing Maintenance for NPS 2 This procedure is t...

Страница 25: ...of taper pin holes weakens the shaft and may cause it to fail in service 10 Clean the packing boxes and metal packing box parts Assembly 1 Drop in the new bearings Make sure to orient the tab in the bearing with the slot in the seal 2 Insert the disc into the valve body Be certain the taper pin holes in the disc are on the actuator side of the valve Also be certain the letter C stamped on either f...

Страница 26: ...ppropriate bolt torque from table 6 CAUTION The valve disc travel stop in the valve body bore is not to be used as a power actuator travel stop see figure 7 Use the actuator travel stops to limit the rotation of the valve disc It is possible damage to the valve component parts may occur if full actuator thrust is applied to the valve disc travel stop Note To obtain proper shutoff the closed positi...

Страница 27: ... to the ENVIRO SEAL Packing System for Rotary Valves Instruction Manual D101643X012 or contact your Emerson Process Management sales office for assistance Retrofit Kits for ENVIRO SEAL Packing Retrofit kits include new parts for the key numbers listed in the table below see figure 6 for part locations PARTS INCLUDED IN KIT Key Description 100 Packing stud 101 Packing nut 102 Packing flange 103 Spr...

Страница 28: ...003X012 NPS 8 75B0311X012 NPS 10 75B0312X012 NPS 12 75B0313X012 UHMWPE NPS 2 75B0387X022 NPS 3 75B0020X022 NPS 4 75B0042X022 NPS 6 75B0003X022 NPS 8 75B0311X022 NPS 10 75B0312X022 NPS 12 75B0313X022 Glass filled PTFE NPS 2 75B0387X032 NPS 3 75B0020X032 NPS 4 75B0042X032 Key Description Part Number NPS 6 75B0003X032 NPS 8 75B0311X032 NPS 10 75B0312X032 NPS 12 75B0313X032 NOVEX S31600 SST NPS 2 17A7...

Страница 29: ...ngs CL150 only NPS 3 75B1137X012 NPS 4 75B1137X022 NPS 6 75B1137X032 NPS 8 75B1137X042 NPS 10 75B1137X052 NPS 12 75B1137X062 Key Description Part Number 14 Hex Head Cap Screw Steel 14 Stud Bolt SST 15 Backup Ring See following table 16 Gasket Graphite w Metal and Phoenix III seals NPS 3 75B1124X022 NPS 4 75B1124X032 NPS 6 75B1124X042 NPS 8 75B1545X012 NPS 10 75B1545X022 NPS 12 75B1545X032 17 Hex S...

Страница 30: ...ng ENVIRO SEAL PTFE 1 2 inch 12B7054X012 5 8 inch 12B7406X012 3 4 inch 12B7418X012 Key Description Part Number 1 inch 12B7442X012 1 1 4 inch 12B7454X012 1 1 2 inch 12B7466X012 1 3 4 inch 14B3045X012 107 Packing Box Ring Standard and ENVIRO SEAL Packing 1 2 inch 16A6082X012 5 8 inch 16A6083X012 3 4 inch 16A6084X012 1 inch 16A6085X012 1 1 4 inch 16A6086X012 1 1 2 inch 16A6087X012 1 3 4 inch 12A9058X...

Страница 31: ...75B0060X062 75B0060X052 10 75B0067X012 75B0067X022 75B0067X032 75B0067X042 75B0067X062 75B0067X052 12 75B0074X012 75B0074X022 75B0074X032 75B0074X042 75B0074X062 75B0074X052 NOVEX and Phoenix III Seal Ring Single Flange 3 75B1047X132 75B1047X072 75B1047X082 4 75B1048X132 75B1048X072 75B1048X082 6 75B1049X132 75B1049X072 75B1049X082 8 75B1542X012 75B1542X022 75B1542X032 10 75B1543X012 75B1543X022 7...

Страница 32: ... 12A9019X032 12A9019X072 12A9019X052 12A9019X042 12A9019X032 3 19A3749X012 19A3749X042 19A3749X032 F14119X0052 F14119X0062 F14119X0072 F14119X0082 4 F14119X0052 F14119X0062 F14119X0072 F14119X0082 G11299X0032 G1129940092 G1129940152 G1129940022 6 G11299X0032 G1129940092 G11299400152 G1129940022 F13668X0022 F1366840092 F13668X0032 F1366840022 8 F13668X0022 F1366840092 F13668X0032 F1366840022 G13725...

Страница 33: ...33 Figure 12 Wafer Valve Assembly for the NPS 3 through 12 75B0094 B NOTE KEYS 21 22 AND 28 ARE NOT SHOWN ALLOY FOLLOWER ASSY METAL BEARING CL150 SIZE 12 CL300 PTFE SEAL NOVEX SEAL PHOENIX III SEAL ...

Страница 34: ...er Valve Assembly for the NPS 3 through 12 continued 75B0096 B NOTE KEYS 21 22 AND 28 ARE NOT SHOWN ALLOY FOLLOWER ASSY METAL BEARING CL150 SIZE 12 CL300 PTFE SEAL NOVEX SEAL PHOENIX III SEAL GRAPHITE PACKING 34B5064 A ...

Страница 35: ...35 Figure 13 Valve Assembly for NPS 2 NOTE PARTS 21 AND 22 NOT SHOWN 75B0625 34B5064 A PTFE SEAL METAL SEAL GRAPHITE PACKING TWO PIECE FOLLOWER ...

Страница 36: ...o Emerson Process Management Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co KALREZ is a mark owned by E I DuPont De Nemours Co All other marks are the property of their respective owners Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use or maintenance of any product Responsibility for p...

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