Emerson A31D Instruction Manual
Contents
1. 100 Packing Flange Stud 4 req d 101 Packing Flange Nut 4 req d 102 Packing Flange SST 106 103 Spring Pack Assembly 105 Packing Set Use with PTFE packing CL150 NPS 3 12B9122X012 NPS 4 12B9236X012 NPS 6 12B9245X012 NPS 8 12B9245X012 NPS 10 12B9078X012 NPS 12 12B9258X012 NPS 14 14B3490X012 NPS 16 14B3495X012 NPS 18 13B9155X012 NPS 20 13B9164X012 NPS 24 12B7782X012 CL300 NPS 3 12B9122X012 NPS 4 12B9236X012 NPS 6 12B9245X012 NPS 8 12B9258X012 NPS 10 13B9272X012 NPS 12 13B9273X012 NPS 14 13B1964X012 NPS 16 14B3647X012 NPS 18 12B7782X012 NPS 20 13B9164X012 NPS 24 14B5730X012 107 Use with Graphite packing 111 CL150 112 NPS 3 55 113 26 Description NPS 4 NPS 6 NPS 8 NPS 10 NPS 12 NPS 14 NPS 16 NPS 18 NPS 20 NPS 24 CL300 NPS 3 NPS 4 NPS 6 NPS 8 NPS 10 NPS 12 NPS 14 NPS 16 NPS 18 NPS 20 NPS 24 filled PEEK 2 req d Single PTFE packing w std packing box CL150 NPS 3 NPS 4 NPS 6 NPS 8 NPS 10 NPS 12 NPS 14 NPS 16 NPS 18 NPS 20 NPS 24 CL300 NPS 3 NPS 4 NPS 6 NPS 8 NPS 10 NPS 12 NPS 14 NPS 16 NPS 18 NPS 20 NPS 24 Packing Box Ring Tag not shown Cable Tie not shown Lubricant Recommended spare parts Anti Extrusion Ring Composition graphite Instruction Manual D500248X012 Part Number 13B8816X042 13B8816X082 13B8816X082 13B8816X102 13B8816X122 14B3541X112 14B3541X122 14B3541X032 14B3541X082 14B3541X0422. 13B8816X042 13B8816X042 13B8816X122 14B3541X012 14B3541X092 14B3541X082 14B3541X052 14B3541X042 14B3541X062 14B3541X072 12B9121X012 12B9235X012 12B9244X012 12B9244X012 12B9084X012 12B9257X012 14B3489X012 14B3494X012 13B9159X012 13B9168X012 12B7783X012 12B9121X012 12B9235X012 12B9244X012 12B9257X012 14B3372X012 14B3530X012 13B9168X012 14B3642X012 12B7783X012 13B9168X012 14B5734X012 Instruction Manual A31D Valve D500248X012 April 2014 Figure 8 ENVIRO SEAL Packing Systems Be om 9 lt A VEZ 3487524 B STACKING ORDER OF PTFE PACKING RINGS PTFE PACKING SYSTEM O 9 oo 64 C WS 9O CRS 178 49 lt lt V N STACKING ORDER OF GRAPHITE PACKING RINGS GRAPHITE PACKING SYSTEM NOTE 4 gt VALVES WITH SHAFTS LARGER THAN 38 1 mm 1 1 2 INCH USE GRAPHITE RINGS A31D Valve Instruction Manual April 2014 D500248X012 Key 5 Seal Ring Ee 5 __ _ 3496480 V3649012 nervosa 1 VEU _ 3 Vi6205202 4 mese VIMBWS 5 1679700 ____ VI67659022 Memo 8
3. NJ Recommended spare parts 31 A31D Valve Instruction Manual April 2014 D500248X012 Figure 9 Fisher A31D Valve Body Assembly NPS 3 8 CL150 and NPS 3 6 CL300 15 USE ONLY WITH SOFT SEAL AND PHOENIX III SEAL 25 USE WITH NOVEX SEAL PHOENIX III SEAL AND CRYOGENIC VALVES NOT SHOWN KEYS 27 28 32 33 111 112 113 GE57850 A 32 Instruction Manual D500248X012 Figure 10 Fisher A31D Valve Body Assembly NPS 10 12 CL150 and NPS 8 12 CL300 15 USE ONLY WITH SOFT SEAL AND PHOENIX III SEAL 25 USE WITH NOVEX SEAL PHOENIX SEAL AND CRYOGENIC VALVES 35 INCLUDED IN FIND NUMBER 35 DISK SHAFT ASSEMBLY NPS 12 CL300 GE57889 A NOT SHOWN KEYS 27 28 32 33 111 112 113 A31D Valve April 2014 33 A31D Valve Instruction Manual April 2014 D500248X012 Figure 11 Fisher A31D Valve Body Assembly NPS 14 24 CL150 and CL300 15 USE ONLY WITH SOFT SEAL AND PHOENIX III SEAL GE62596 A PARTS NOT SHOWN KEYS 26 29 32 33 38 111 112 113 Instruction Manual D500248X012 A31D Valve April 2014 35 A31D Valve Instruction Manual April 2014 D500248X012 Neither Emerson Emerson Process Management nor any of their affiliated entities assumes responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any product remains solely with the purchaser and end user Fisher POSI SEAL and ENVIRO SEAL are marks owned by one of the companies i
4. 10 or 11 unless otherwise indicated 1 Properly secure the valve on a suitable worktable so it cannot slip twist or fall during maintenance Be prepared to support the valve disk Allow for easy access to the valve body bore drive shaft bearing bore and follower shaft bearing bore A WARNING Avoid personal injury or property damage caused by the impact of a falling or tipping of a large valve Support large valves during maintenance Note Replacement disk and shafts are provided as a matched set and both should be replaced at the same time 2 Inspect all parts removed from the valve for wear or damage Replace any worn or damaged parts Clean the valve body and all parts to be installed with an appropriate solvent or degreaser Note When installing the bearings apply lubricant to the outside diameter of the bearing for ease of installation CAUTION Premature valve failure and loss of process control may result if bearings are improperly installed or are damaged during installation 3 When installing the lower bearings key 4 insert one or more bearings into the follower shaft bearing bore so it is flush with the body bore The number of bearings required changes with valve size and construction Two bearings are required in the drive shaft and two bearings in the follower shaft If using an NPS 14 CL150 valve with metal bearings four bearings in the drive and four in the follower shaft will be required 4 Hold the follow
5. 4 Before removing the valve from the pipeline make sure the valve disk is closed Removing the valve with the disk open could cause damage to the disk piping or pipe flanges 5 After removing the valve from the pipeline move the valve to an appropriate work area Always support the valve properly 6 When valve maintenance is complete refer to the Installation procedures in this manual Seal Maintenance Note Forlarger valves it is possible to replace the seal key 5 while the actuator is mounted to the valve and can be accomplished by cycling the valve to 90 degrees open Key numbers in this procedure are shown in figure 9 10 or 11 unless otherwise indicated 1 After removing the valve from the pipeline remove the manual or power actuator Manually rotate the drive shaft key 3 counterclockwise until the disk has moved a full 180 degrees away from the closed position A WARNING Avoid personal injury or property damage caused by the impact of a falling or tipping of a large valve Support large valves during maintenance 2 Lay the valve flat on a work bench in a secure position with the retaining ring key 18 and retaining ring screws key 19 facing up Properly secure the valve on a suitable worktable so it cannot slip twist or fall during maintenance Remove all retaining ring screws 3 Remove the retaining ring by placing a socket head cap screw from the retaining ring into each of the two retaining ring jacking
6. 4 req d 10 Anti Blowout Flange 24 Thrust Bearing See following table 11 Packing Flange 25 Tangential Pin 12 Packing Follower 26 Retaining Ring Gasket 13 Packing Set NOVEX and Phoenix III Seal PTFE V Ring CL150 CL150 NPS 3 16B0749X012 NPS 3 V110247X012 NPS 4 16B0668X012 NPS 4 V143725X012 NPS 6 16B0738X012 NPS 6 V143726X012 NPS 8 16B0669X012 NPS 8 V143726X012 NPS 10 16B0740X012 NPS 10 V110259X012 NPS 12 16B0670X012 NPS 12 V110262X012 NPS 14 V161467X012 NPS 14 V111433X012 NPS 16 V161468X012 NPS 16 V167865X012 NPS 18 V161469X012 NPS 18 V110460X012 NPS 20 V112062X012 NPS 20 V111437X012 NPS 24 V161471X012 NPS 24 V111699X012 CL300 CL300 NPS 3 16B0749X012 NPS 3 V110247X012 NPS 4 16B0668X012 NPS 4 V143725X012 NPS 6 16B0738X012 NPS 6 V143726X012 NPS 8 16B0739X012 NPS 8 V110262X012 NPS 10 16B0680X012 NPS 10 V143727X012 NPS 12 16B0741X012 NPS 12 V146281X012 NPS 14 V113741X012 NPS 14 V111437X012 NPS 16 V112064X012 NPS 16 V110631X012 NPS 18 V161469X012 NPS 18 V111699X012 NPS 20 V112062X012 Recommended spare parts 25 A31D Valve April 2014 Key Description Part Number Key NPS 24 V124867X012 27 Cap Screw Actuator 4 req d not shown 28 Hex Nut Actuator 4 req d not shown 29 Nameplate not shown 30 Drive Screw 2 req d not shown 31 Key 33 Flow Direction Arrow not shown 34 Packing Box Ring 35 Disk Shaft Pin Assembly not shown ENVIRO SEAL Packing System See figure 8 10 Anti Blow Flange 17 Hex Jam Nut 4 req d
7. and 300 NPS 3 4 6 valves amp NPS 8 CL150 valves 5 mm 0 188 INCHES b The disk shaft and taper key assembly must be inspected to verify that the taper key spans the entire shaft flat width If so this procedure is complete If not the taper key must be driven in farther until this condition is satisfied However do not exceed the following depth limits VALVE SIZE NPS MAXIMUM ALLOWABLE DEPTH TO DRIVE TAPER KEY AFTER INITIAL SOLID CONTACT NPS 3 and 4 CL 150 300 7 mm 0 281 INCHES NPS 6 CL300 and NPS 8 CL150 8 mm 0 312 INCHES 9 After driving the taper key in place arc spot weld the head of the taper key to the disk as shown in figure 7 For NPS 3 4 and 6 valves use an arc spot weld bead of 1 8 inch diameter For NPS 8 10 and 12 valves use an arc spot weld bead of 3 16 inch diameter 10 Install the packing as described in the Packing Replacement section or in the ENVIRO SEAL Rotary Packing Instruction Manual D101643X01 2 Figure 7 Fisher A31D Taper Key Weld Location WELD LOCATION K p sss AA s MINIMUM TAPER KEY ENGAGEMENT MAXIMUM TAPER KEY ENGAGEMENT VIEW TAPER KEY WELD LOCATION Installing the Two Piece Shaft Note In these instructions the drive shaft with splined or keyed end is key 3 The shaft opposite the drive shaft is called the follower shaft key 4 20 Instruction Manual A31D Valve D500248X012 April 2014 Key numbers in this procedure are shown in figure 9
8. length oftap Screws 434 5 NecWewyHeN 3X 32 9 amp G 9 9 1 Basedon 1 8 inch gasket 2 Optional Alternative for Cap Screws Valve Orientation The valve can be installed in any orientation however it is recommended that the valve drive shaft be horizontal and the actuator vertical Before Installing the Valve WARNING The edges of a rotating valve disk key 2 figure 9 10 or 11 close with a shearing cutting motion To avoid personal injury keep hands tools and other objects away from the disk while stroking the valve If the A31D valve is equipped with a fail open actuator cycle the valve into the fully closed position Ensure the valve cannot open during installation by using travel stops a manual actuator a constant supply pressure to the pneumatic actuator or other steps as necessary A31D Valve Instruction Manual April 2014 D500248X012 Figure 2 Available Seal Configurations BACKUP RING SEAL RING RETAINING RING RETAINING NOVEX SEAL RING HIGH PRESSURE ATSHUTOFF lt SEAL SOFT SEAL WITH BACKUP O RING HIGH PRESSURE lt RING RETAINING RING RESILIENT INSERT HIGH PRESSURE AT SHUTOFF lt PHOENIX FIRE TESTED SEAL NOTE FOR OPTIMUM SEAL PERFORMANCE THE PREFERRED VALVE ORIENTAT
9. properly positioned in the valve body key 1 push the drive shaft and follower shaft the rest of the way through the thrust bearings and into the shaft bores in the valve disk Align the holes in the shafts with the holes in the disk CAUTION To avoid damage to the taper key tangential pins valve disk or shaft s resulting from the application of excessive force use appropriate care when driving the key or pins into the disk hub and shaft s Use the correct tool and do not use excessive force 10 Before installing the taper key be sure the taper key disk shaft joint is free of oil or grease If necessary remove any excess welding material from the taper key 11 Install the appropriate taper key and tangential pins 12 Install the taper key by aligning the taper key hole in the shaft with the holes in the shaft boss on the disk Insert the taper key Use a pin punch to drive the taper key until solid contact is felt Measure the depth of the taper key head for a reference during the following steps a Drive the taper key in farther as follows VALVE SIZE NPS MINIMUM DEPTH TO DRIVE TAPER KEY AFTER INITIAL SOLID CONTACT NPS 8 CL300 NPS 10 and 12 CL150 amp NPS 10 CL300 valves 6 mm 0 219 INCHES b The disk shaft and taper key assembly must be inspected to verify that the taper key spans the entire shaft flat width If so this procedure is complete If not the taper key must be driven in farther until th
10. 28 Recommended spare parts Instruction Manual A31D Valve D500248X012 April 2014 Key 6 Backup RIng VAMEUENS Soft Seal PTFE UHMWPE CL150 Soft Seal PTFE CL300 Phoenix 316 PTFE CL150 CHLOROPRENE i O 14 0 20 V111375X012 NJ AINI O V111385X012 i T n Phoenix 316 PTFE CL300 o N Recommended spare parts 2 A31D Valve Instruction Manual April 2014 D500248X012 Key 7 Bearing PE _ CL150 V161474X022 V111398X032 V157057X012 UJ e e A Ww UJ CJ Me A N U N A 1 Upper bearing 2 Lower bearing 3 Both upper and lower bearings 30 Recommended spare parts Instruction Manual A31D Valve D500248X012 April 2014 Key 21 Gasket 8568x022 _ 8568x022 resco CL300 8568x022 286055028 Key 24 Thrust Bearing VALVE SIZE NPS QUANTITY NEEDED 316 NITRIDE 5 04 6885072 S 2 2 VIS EN GENE Css SS V166421X012 V166461X012 V166422X012 V159620X012 V166423X012 V166489X012 HART b o N
11. D500248X012 April 2014 Pa rts Li st Key Description Part Number NPS 20 V111704X012 NPS 24 V111708X012 Graphite Note CL150 NPS 3 V111021X012 Part numbers are shown for recommended spares only For part numbers not shown contact your Emerson Process Management sales oe office NPS 6 V143698X012 NPS 8 V143698X012 NPS 10 V111025X012 NPS 12 V111026X012 NPS 14 V111434X012 Key Description Part Number NPS 16 V167864X012 NPS 18 V111028X012 1 Valve Body NPS 20 V111438X012 If you need a valve body as a replacement part order the NPS 24 V111442X012 valve size ASME rating and desired material Contact your CL300 Emerson Process Management sales office NPS 3 V111021X012 2 Disk NPS 4 V143697X012 3 Drive Shaft NPS 6 V143698X012 4 Follower Shaft NPS 8 V111026X012 5 SealRing See following table NPS 10 V143832X012 6 Backup Ring See following table NPS 12 V146282X012 7 Bearing Seefollowing table NPS 14 V111438X012 8 Bearing Stop NPS 16 V111696X012 9 Taper Key NPS 18 V111442X012 NPS 3 11B0674X012 NPS 20 V111705X012 NPS 4 11B0674X012 NPS 24 V111709X012 NPS 6 11B0695X012 14 Stud 2 req d NPS 8 11B0695X012 15 Hexnut 2req d NPS 10 11B0722X012 16 Anti blowout ring NPS 12 11B0722X012 17 HexJam Nut 2 req d CL300 18 Retaining Ring NPS 3 11B0674X012 19 Retaining Ring Screw NPS 4 11B0674X012 20 GasketRetainer NPS 6 11B0695X012 21 Gasket See following table NPS 8 11B0722X012 22 Lockwasher 4 req d NPS 10 11B4684X012 23 Cap Screw
12. ION AT SHUTOFF IS WITH THE RETAINING RING DOWNSTREAM FROM THE HIGH PRESSURE SIDE OF THE VALVE Table 3 Valve Orientation for Optimal Seal Performance SEAL TYPE SHUTOFF DIRECTION INSTALLED ORIENTATION Standard soft ea Preferred on Non Fire Tested Bidirectional Phoenix seal Preferred Fire Tested Prefered Recommended or preferred installation for the A31D valve is with the flow into the shaft side of the disk retaining ring downstream from the high pressure side of the valve Instruction Manual A31D Valve D500248X012 April 2014 Table 4 Valve Weights An A31D valve is normally shipped as part of an assembly with an actuator and other accessories such as a valve positioner If the valve and actuator have been purchased separately or if the actuator has been removed for maintenance properly mount the actuator and adjust valve actuator travel and all travel stops before inserting the valve into the line CAUTION Damage to the disk will occur if any pipe flanges or piping connected to the valve interfere with the disk rotation path Be certain to align the valve accurately to avoid contact between the disk key 2 and the flanges Adjusting the Actuator Travel Stops or Travel Key number locations are shown in figure 9 10 or 11 unless otherwise noted 1 Referto the actuator instruction manual to locate the actuator travel stop that controls the closed position of the valve disk key 2 When adjusting the trave
13. Instruction Manual A31D Valve D500248X012 April 2014 Fisher POSI SEAL A31D Double Flange High Performance Butterfly Valve Contents Figure 1 Fisher A31D Valve with 2052 Actuator IMEFOGUICEION Gates ti ona eite 1 Scope Ol PP PN 1 DESCHDUION tdi aae Sibi ae 2 A31D Valve Specifications and Materials OL GOMSUMICHOR osos dod pe S IESUS EAS 2 Educational Services 2 coc wane 3 Valve Orientation 5 Before Installing the Valve 5 Adjusting the Actuator Travel Stops or Travel 7 Installing the Valve 7 Packing Adjustment and Shaft Bonding 8 acts ect inate dow ean ts 10 Removing and Replacing the Actuator 10 Packing Maintenance 11 Removing the Valve 11 Seal Maintenance 12 PIFE scored ond rebat Das 12 NOVEX Phoenix and or Phoenix Ill Fire Tested Seals 14 Anti Blowout Design Packing Valve Shaft Disk and Bearing Maintenance 17 x0704 Installing the Two Piece Shaft 20 Gasket Retainer 22 Ordering sois ode bets RENE ARRA 23 P ii PU Sacre teas 25 Introduction Scope of Manual This instruction manual includes installation maintenance
14. and parts ordering information for Fisher POSI SEAL A31D double flange high performance butterfly valves see figure 1 Refer to separate instruction manuals for information covering the actuator and accessories Do not install operate or maintain an A31D valve 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 gt www Fisher com Process Management A31D Valve Instruction Manual April 2014 D500248X012 A31D Valve Specifications and Materials of Construction Table 1 Fisher A31D Valve Specifications Valve Body Size NPS 3 4 6 8 10 12 14 16 18 20 and 24 WCC Steel Valve Body Materials CF8M Stainless Steel Disk Materials CF8M Stainless Steel Valve Body Style Double Flange CL150 ISO 5752 Butterfly Valve Short Series Face to Face Dimensions Consistent with CL150 and 300 per ASME B16 34 CL300 ISO 5752 Butterfly Valve Long Series Soft Seal Bidirectional ANSI FCI 70 2 Class VI Shutoff NOVEX Seal Unidirectional MSS SP 61 7 Phoenix Seal ANSI FCI 70 2 Class VI Reverse flow direction is into the shaft side of the disk Flow Cha
15. appropriate for the valve size If a vise or other clamps are being used be sure to not damage the flange gasket sealing area of the valve body 7 Manually rotate the drive shaft key 3 to turn the disk clockwise to meet the seal 8 Tapthe disk with a rubber mallet to drive it against the internal travel stop When the disk makes contact with the stop manually rotate the disk counterclockwise back out of the seal to a 90 degree open position Repeat steps 7 and 8 three times Note When attaching the actuator to the valve make sure the valve disk is not in contact with the valve internal travel stop see figure 5 The valve disk should be positioned from 0 25 to 0 76 mm 0 010 to 0 030 inch away from the internal stop in the valve body see figure 5 9 Use an appropriate tool such as a feeler gauge to position the disk key 2 from 0 25 to 0 76 mm 0 010 to 0 030 inch away from the internal stop in the valve body This adjustment is necessary to be certain that the actuator output torque is fully absorbed by the actuator travel stop or by the actuator The internal travel stop in the valve body should not absorb any of the actuator torque CAUTION When using an actuator the actuator travel stop or actuator travel for actuators without adjustable stops must be adjusted so the disk stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel as described in the Adjusting the Actuator Travel S
16. d 1 Remove the valve from the pipeline Remove the actuator from the valve WARNING Avoid personal injury or property damage caused by the impact of a falling or tipping of a large valve Support large valves during maintenance CAUTION Never use a wrench pliers or similar toolto turn the drive shaft A damaged shaft can cut the packing and allow leakage A31D Valve Instruction Manual April 2014 D500248X012 Note It is not necessary to remove the retaining ring and valve seal when removing the shaft s and disk 2 Properly secure the valve on a suitable worktable so it cannot slip twist or fall during maintenance 3 Removing the Anti Blowout Design a For PTFE or Graphite Packing Remove the hex nuts key 15 and pull off the packing flange key 11 Remove the hex jam nuts key 17 and the anti blowout flange key 10 Remove the packing follower key 12 For NPS 3 through 12 remove the anti blowout ring key 16 see figure 6 b For ENVIRO SEAL Packing System Remove the hex nuts key 101 the packing flange key 102 jam nuts key 17 anti blowout flange key 10 and the spring pack assembly key 103 For NPS 3 through 12 remove the anti blowout ring key 16 see figures 6 and 8 4 Remove the packing from around the drive shaft Note Different valves require slightly different procedures because different valve sizes pressure classes have different methods of connecting the disk and shaft s To identify
17. er shaft thrust bearing key 24 in the valve body bore against the counterbore of the follower shaft bearing bore Push the follower shaft into the bearing bore just enough to hold the thrust bearing 5 When installing the upper bearing key 7 insert one or more bearings into the drive shaft from the body bore into the bearing bore below the packing box Use caution to prevent damage to the bearing CAUTION Use caution to prevent damage to the bearing when installing the upper bearing in the previous step 6 Hold the drive shaft thrust bearing key 24 in the valve body bore against the counterbore of the drive shaft bearing bore Push the drive shaft through the packing box side into the bearing bore just enough to hold the thrust bearing CAUTION To avoid damage to the disk seal and T slot area do not force the disk past the seal or T slot area Install the disk from the opposite side of the valve body 21 A31D Valve Instruction Manual April 2014 D500248X012 7 Place the flat side of the disk on a flat surface and insert wooden blocks to raise the disk approximately 50 8 mm 2 inches from the worktable surface Then suspend the valve body over the disk so the seal T slot area is facing up Align the shaft bores through the disk with the drive shaft and follower shaft bores Lower the valve body over the disk using caution not to dislodge or damage the thrust bearings placed on the ends of the shafts With the disk key 2
18. forming any maintenance operations to avoid personal injury e Disconnect any operating lines providing air pressure electric power or a control signal to the actuator Be sure the actuator cannot suddenly open or close the valve e Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure on both sides of the valve Drain the process media from both sides of the valve e Ventthe power actuator loading pressure e Uselock out procedures to be sure that the above measures stay in effect while you work on the equipment e 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 removing the packing hardware or packing rings or when loosening the packing box pipe plug e Check with your process or safety engineer for any additional measures that must be taken to protect against process media Removing and Replacing the Actuator Refer to the appropriate actuator instruction manual for actuator removal and replacement procedures The actuator stops or travel stops must limit the rotation of the valve shaft See the CAUTION below CAUTION When using an actuator the actuator travel stop or actuator travel stop for actuators without adjustable stops must be adjusted so the disk stop in the valve does not absorb the output of the actuator Failure to limit the actua
19. h an appropriate spacer and nut as an extractor tool to remove the tangential pins If using a threaded rod choose a rod with threads that fit the inside thread of the pins The rod should extend several inches above the disk when it is screwed into a pin Instruction Manual A31D Valve D500248X012 April 2014 b After screwing the rod into the pin slide the spacer over the rod and pin Thread the nut onto the rod and tighten it As the nut is tightened the nut will drive the spacer against the disk The increasing force will draw the pin from the disk 1 Valves with a two piece shaft have a gasket retainer and gasket keys 20 and 21 on the follower shaft side of the valve Remove the hex head bolts and lockwashers keys 23 and 22 from the gasket retainer and remove the gasket retainer and gasket to expose the end of the follower shaft 2 Support the valve disk properly and remove the follower shaft Pull the follower shaft from the valve body Use a shaft extractor screwed into the puller hole in the end of the follower shaft 3 Support the valve disk properly and remove the drive shaft Pull out the drive shaft key 3 by hand pulling or by using a shaft extractor screwed into the end of the shaft CAUTION To avoid damage to the disk seal ring and T slot area do not force the disk past the seal or T slot area Remove the disk from the opposite side of the valve body 4 After removing the shaft s remove the disk and the thru
20. hen the seal is under the lip of the retaining ring continue to tighten the cap screws according to standard procedures Do not fully torque screws at this time Final tightening of screws is accomplished in step 7 of this procedure 6 Manually rotate the drive shaft clockwise 180 degrees to return the disk key 2 to its closed position 7 Thefinal seating of the retaining ring cap screws can now be done For the screw torque values refer to table 5 The seal is now fully installed Refer to the Installation procedures in this manual NOVEX Phoenix Ill and or Phoenix III Fire Tested Seals 1 Locate the replacement seal ring key 5 and note the shape of the ring The ring is wider across one edge diameter and narrower across the other edge diameter as shown in figure 5 Around the outside circumference is one wide groove Install the seal ring key 5 in the valve body by first placing the wider outside diameter of the seal ring into the T slot area of the valve body which is shown in figure 2 The backup O ring key 6 for the Phoenix III seal will have to be installed after placement of the seal ring in the valve body using a blunt end tool Do not use the seal tool directly on the metal seat Use tools on the O ring only 2 With the seal ring inserted all the way around the body T slot now lay the O ring into the opening between the valve body and the seal ring Use the seal tool to apply pressure to the O ring and carefully tuck the O ri
21. irst contacting your Emerson Process Management sales office Isolate the control valve from the line pressure release pressure from both sides of the valve body and drain the process media from both sides of the valve If using a power actuator shut off all pressure lines to the power actuator release pressure from the actuator and disconnect the pressure lines from the actuator Use lock out procedures to be sure that the above measures stay in effect while you are working on the equipment A WARNING See the WARNING at the beginning of the Maintenance section for more information before removing the valve from the pipeline 2 Install a three valve bypass around the control valve assembly if continuous operation is necessary during inspection and maintenance of the valve 3 Inspect the valve to be certain that it is free of foreign material A31D Valve Instruction Manual April 2014 D500248X012 CAUTION Damage to the disk will occur if any pipe flanges or piping connected to the valve interfere with the disk rotation path If piping flange has a smaller inner diameter than specified for schedule 80 piping measure carefully to be certain the disk rotates without interference before placing the valve into operation Be certain that adjacent pipelines are free of any foreign material such as pipe scale or welding slag that could damage the valve sealing surfaces Installing Double Flange Valves A WARNING The edge
22. is condition is satisfied However do not exceed the following depth limits VALVE SIZE NPS MAXIMUM ALLOWABLE DEPTH TO DRIVE TAPER KEY AFTER INITIAL SOLID CONTACT NPS 8 CL300 and NPS 10 and 12 CL150 10 mm 0 375 INCHES NPS 10 CL300 11 mm 0 406 INCHES 13 After driving the taper key in place arc spot weld the head of the taper key to the disk as shown in figure 7 For NPS 10 and 12 valves use an arc spot weld bead of 3 16 inch in diameter 14 Referto Packing Maintenance and the Anti Blowout Design procedures in this manual to re install the packing and anti blowout design Gasket Retainer Valves with a two piece shaft use a gasket retainer and gasket keys 20 and 21 to cover the follower shaft opening in the valve body The gasket is held in place by the gasket retainer and four hex head bolts and lockwashers keys 23 and 22 When reassembling the valve use a new gasket Be sure to center the gasket over the follower shaft bore before retightening bolts Tighten down bolts evenly in a crossover or star pattern Refer to table 6 Installing the Gasket Retainer All A31D valves use a gasket retainer and gasket to cover the follower shaft opening in the valve body 22 Instruction Manual A31D Valve D500248X012 April 2014 1 Replace the gasket key 21 and gasket retainer key 20 over the end of the follower shaft Use a new gasket 2 Replace the four hex head bolts key 23 and lockwashers key 22 to hold the gasket
23. l stop or travel make sure that the disk is from 0 25 to 0 76 mm 0 010 to 0 030 inch away from the internal stop in the valve body see figure 5 This adjustment is necessary to be certain that the actuator output torque is fully absorbed by the actuator travel stop or by the actuator The internal travel stop in the valve body should not absorb any of the actuator torque CAUTION When using an actuator the actuator travel stop or actuator travel for actuators without adjustable stops must be adjusted so the disk stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel as described in the Adjusting the Actuator Travel Stops or Travel steps can result in damage to the valve shaft s or other valve components 2 Before installing the valve actuator assembly in the process line cycle the valve several times to be sure the valve disk returns to the proper position Installing the Valve The maximum allowable inlet pressures for A31D valves are consistent with the applicable ASME pressure temperature ratings except where limited by the material capabilities A31D Valve Instruction Manual April 2014 D500248X012 Refer to table 2 for the quantity and size of line bolting required to install the valve in the pipeline CAUTION To avoid damage to the valve disk during installation the valve must be in the fully closed position If the A31D valve is equipped with a fail open actuator remove
24. lve according to the following step A31D Valve Instruction Manual April 2014 D500248X012 Note Standard PTFE packing is composed of a partially conductive carbon filled PTFE female adaptor with PTFE V ring packing Standard graphite packing is composed of all conductive graphite ribbon packing Alternate shaft to valve body bonding is available for hazardous service areas where the standard packing is not sufficient to electrically bond the shaft to the valve see the following step 4 Attach the bonding strap assembly key 131 figure 4 to the shaft with the clamp key 130 figure 4 5 Connect the other end of the bonding strap assembly to the valve flange cap screws 6 For more information refer to the Packing Maintenance section below 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 Key numbers in this procedure are shown in figure 9 10 or 11 unless otherwise indicated WARNING The valve closes with a shearing action To avoid personal injury keep hands tools and other objects away from the valve while its being stroked Avoid personal injury from sudden release of process pressure Before performing any maintenance operations e Do notremove the actuator from the valve while the valve is still pressurized e Always wear protective gloves clothing and eyewear when per
25. lves CL300 have a bearing stop pressed into the bearing bore immediately after the packing box Do not attempt to remove the bearing stop which is found in the drive shaft bearing bore immediately after the packing box The bearing stop is pressed into the bearing bore If the bearing stop needs replacement contact your Emerson Process Management sales office for more information Note The A31D valve has a two piece shaft In these procedures the drive shaft is key 3 The shaft opposite the drive shaft is called the follower shaft key 4 CAUTION When using an actuator the actuator travel stop or actuator travel adjustment for actuators without adjustable stops must be adjusted so the disk stop in the valve does not absorb the output of the actuator Failure to limit the actuator travel as described in the next step can result in damage to the valve shaft s or other valve components CAUTION When removing the actuator from the valve do not use a hammer or similar tool to drive the lever off the valve shaft Driving the lever or actuator off the valve shaft could damage the valve internal parts If necessary use a wheel puller to remove the lever or actuator from the valve shaft It is okay to tap the wheel puller screw lightly to loosen the lever or actuator but hitting the screw with excessive force could also damage internal valve parts Key numbers in this procedure are shown in figure 9 10 or 11 unless otherwise indicate
26. n the Emerson Process Management business unit of Emerson Electric Co Emerson Process Management Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or quarantees express or implied regarding the products or services described herein or their use or applicability All sales are governed by our terms and conditions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management Marshalltown lowa 50158 USA Sorocaba 18087 Brazil Chatham Kent ME4 4 7 UK a Dubai United Arab Emirates A Singapore 128461 Singapore wwwfishercom CEM ERSON Process en L O 2013 2014 Fisher Controls International LLC All rights reserved ki a ip ee Se a M rc EE
27. ng down into the T slot between the valve body and the seal ring Note On larger valves it may be more efficient to have someone hold down the seal ring while you push the O ring into the T slot 3 Once the seal ring and backup O ring have been fully installed into the body T slot the retaining ring gasket can be installed This gasket is a thin graphite material Punch one initial screw hole through the gasket for alignment being careful not to cause additional damage to the gasket CAUTION The retaining ring gasket is a thin graphite material When you punch one initial screw hole through the gasket for alignment be careful not to cause additional damage to the gasket 4 Install the retaining ring and align the screw holes in the retaining ring with the holes in the valve body Install the first retaining ring screw through the punched hole in the ring gasket Install the other ring screws by pushing the screws through the graphite gasket and threading them into the valve body 5 Tighten the retaining ring socket head cap screws just enough to eliminate any movement of the retaining ring Do not over tighten the retaining ring screws Instruction Manual A31D Valve D500248X012 April 2014 A WARNING Avoid personal injury or property damage caused by the impact of a falling or tipping of a large valve Support large valves during maintenance 6 To complete this step stand the valve up Support the valve securely using methods
28. o the first piece of packing and pull firmly to remove the packing Repeat this process until all packing parts have been removed CAUTION Be careful when cleaning the packing box Scratches to the drive shaft key 3 or inside diameter of the packing bore might cause leakage 4 Before installing new packing clean the packing box 5 Install new packing one ring at a time using the packing follower as a driver If using split ring packing stagger the splits in the rings to avoid creating a leak path 6 Reinstall the packing parts Refer to figure 8 for the sequence of packing parts Removing the Valve 1 Disconnect any operating lines providing air pressure electric power or a control signal to the actuator Be sure the actuator cannot suddenly open the valve Vent the power actuator loading pressure 2 Use bypass valves or completely shut off the process to isolate the valve from process pressure Relieve process pressure on both sides of the valve Drain the process media from either side of the valve A31D Valve Instruction Manual April 2014 D500248X012 CAUTION Damage to the valve disk can occur if the disk is not closed when the valve is being removed from the pipeline If necessary stroke the actuator to place the disk in the closed position while removing the valve from the pipeline 3 Loosen the flange bolting that holds the valve Make sure the valve cannot slip or twist while loosening and removing the bolting
29. our Emerson Process Management sales office 0 25 TO 0 76 0 010 TO 0 030 LARGEST OUTSIDE DIAMETER KEY 5 INTERNAL TRAVEL STOP ACTUATOR END OF SHAFT CCW DISK ROTATION TO OPEN POSITION INDICATION MARK INDICATES APPROXIMATE DISK POSITION mm inch GE62591 A PTFE Seals 1 Locate the replacement seal ring key 5 and note the shape of the ring The ring is wider across one edge diameter and narrower across the other edge diameter as shown in figure 5 Around the outside circumference is one wide groove Before installing the seal ring into the valve body place the O ring key 6 into the wide outer groove of the seal ring Refer to figure 5 13 A31D Valve Instruction Manual April 2014 D500248X012 2 Install the seal ring and O ring assembly in the valve body The wider outside diameter of the seal ring as marked in figure 5 goes into the T slot area of the body Start the edge with the wider diameter into the T slot of the valve body using a blunt end tool 3 Carefully tuck the O ring downward into the body T slot until the seal ring is completely entrapped in the body T slot and it completely covers the backup O ring 4 Re install the retaining ring and the socket head cap screws Tighten the cap screws just enough to eliminate any movement of the retaining ring Do not over tighten the retaining ring screws Using a blunt end tool carefully tuck the lip of the seal ring under the retaining ring 5 W
30. packing Tighten standard packing follower nuts only enough to prevent shaft leakage Excessive tightening of packing will accelerate wear and could produce higher rotating friction loads on the valve stem If necessary refer to the Packing Maintenance section Instruction Manual A31D Valve D500248X012 April 2014 Figure 4 Optional Shaft to Valve Body Bonding Strap Assembly ACTUATOR 37A6528 A A3 143 2 CAUTION For non ENVIRO SEAL packing Tighten the packing follower nuts only enough to prevent shaft leakage Excessive tightening will accelerate wear of the packing and could produce higher friction loads on the valve stem 2 ENVIRO SEAL Packing Systems will not require this initial re adjustment Refer to the separate instruction manual Fisher ENVIRO SEAL Packing System for Rotary Valves 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 atmosphere A WARNING The valve shaft is not necessarily grounded when installed in a pipeline unless the shaft is electrically bonded to the valve To avoid personal injury or property damage resulting from the effects of a static electricity discharge from valve components in a hazardous atmosphere or where the process fluid is combustible electrically bond the drive shaft key 3 to the va
31. racteristic Approximately Linear Disk Rotation Clockwise CW to close 1 0 1 scfh per unit of NPS at 80 psi haft C I Spline standard Shaft Connection wm reni a Description The valve is available in a double flanged valve body design with a variety of seals and internal components The pressure assisted seal provides tight shutoff against the full class pressure range for the specific type The splined shaft combines with a variety of Fisher spring and diaphragm or pneumatic double acting or spring return piston actuators Maximum inlet pressure temperature ratings are consistent with ASME CL150 and CL300 Educational Services Forinformation on available courses for the Fisher POSI SEAL A31D valve as well as a variety of other products contact Emerson Process Management Educational Services Registration P O Box 190 Marshalltown IA 50158 2823 Phone 800 338 8158 or 641 754 3771 FAX 641 754 3431 e mail education emerson com Instruction Manual A31D Valve D500248X012 April 2014 Installation Recommended or preferred installation for the A31D valve is with the flow into the shaft side of the disk retaining ring downstream from the high pressure side of the valve The standard soft seal and standard Phoenix seal offer ANSI FCI 70 2 Class VI bidirectional shutoff The Phoenix III seal for fire tested applications must be installed in the preferred direction The Novex seal is unidirectional and should be ins
32. retainer in place 3 Besure to center the gasket over the follower shaft bore before retightening the bolts Tighten down the bolts evenly in a crossover or star pattern Refer to table 6 for proper torque values Parts Ordering When replacement parts are required always use genuine Fisher parts Typical parts are shown in figure 9 10 or 11 When corresponding with your Emerson Process Management sales office about an A31D valve please identify the valve as an A31D and provide the valve serial number For valve actuator combinations assembled at the factory the valve serial number is stamped on the nameplate attached to the actuator A WARNING Use only genuine Fisher replacement parts Components that are not supplied by Emerson Process Management should not under any circumstances be used in any Fisher valve because they may void your warranty might adversely affect the performance of the valve and could cause personal injury and property damage Retrofit Kits Retrofit kits include all parts required for installation of the ENVIRO SEAL packing system into existing high performance butterfly valves Retrofit kits are available for single PTFE packing See table 7 for retrofit kit included parts Note Key 103 the spring pack assembly is made up of the packing spring stack held in place by an O ring on the packing follower See table 8 for retrofit kit part numbers Table 7 Retrofit Kit Included Parts Anti blowout follo
33. s of a rotating valve disk have a shearing effect that may result in personal injury To avoid personal injury keep clear of the disk edges when rotating the disk CAUTION To avoid damage to the valve disk during installation the valve must be in the fully closed position If the A31D valve is equipped with a fail open actuator remove the actuator before installing the valve actuator assembly or cycle the valve into the fully closed position Then take appropriate steps to ensure that the actuator does not cause the valve to open during installation See table 2 for flange bolt specifications NJ Properly orient the valve according to the specific application For optimum performance install the valve so that the shaft will be on the high pressure side of the valve at shutoff UJ Position the valve between the flanges Be sure to leave enough room for the flange gaskets Install the lower flange bolts Select the appropriate gaskets for the application Flat sheet spiral wound or other gasket types made to the ASME B16 5 group standard or user s standard can be used on the valve depending on the service conditions of the application Install the gaskets and align the valve and the gaskets A Install the remaining bolts OQ Ul Tighten the flange bolts in an alternating criss cross fashion to a torque value of one forth of the final bolting torque Repeat this procedure several times increasing the torq
34. screw holes Slowly turn the screws until the retaining ring has been lifted from the valve body Remove the retaining ring to expose the seal in the T slot area of the valve body Note The A31D is available with different seal designs and components See figure 2 to identify the specific seal design 4 Insert a regular screwdriver or other similar tool under the top edge of seal and gently pry the seal out of the T slot area in the valve body Take care not to damage the seal or T slot area of the valve body After the seal has been removed clean the T slot area retaining ring and if required polish the disk key 2 thoroughly Instruction Manual A31D Valve D500248X012 April 2014 To install a new seal O ring key 6 and retaining ring gasket follow the appropriate instructions given below Table 5 Torque Values for Retaining Ring Screws RETAINING RING SCREWS ASME CLASS AND VALVE SIZE NPS i 25 45 CL150 NPS 6 and 12 CL300 NPS 6 8 10 and 12 16 4 oc Note These values are based upon standard materials S66286 N07718 screws and ASTM A193GRB6 bolts For other special fastener materials please contact your Emerson Process Management sales office Table 6 Torque Values for Gasket Retainer Bolts Fastener Nominal Size 5 8 E Note These values based upon standard materials 566286 307718 screws and ASTM A193GRB6 bolts For other special fastener materials please contact y
35. st bearings Do not force the disk past the seal ring or T slot area 5 Remove the journal bearings key 7 Using a suitable punch or puller drive or pull the journal bearing s into the valve body bore from the drive shaft bearing bore Do not attempt to remove the bearing stop key 8 Remove the journal bearing from the follower shaft bearing bore 6 Inspect the valve body bore bearings bearing bores and packing box for damage Installing a One Piece Shaft Unless otherwise indicated key numbers and part names are listed in figure 7 1 Secure the valve in an upright position Allow for easy access to the valve body bore Allow for easy access to the drive shaft bearing bore 2 Inspect all parts removed from the valve for wear or damage Replace any worn or damaged parts Clean the valve body and all parts to be installed with an appropriate solvent or degreaser CAUTION Premature valve failure and loss of process control may result if bearings are improperly installed or are damaged during installation 3 Using caution to prevent damage to the bearing insert one journal bearing key 7 from the valve body bore into the drive shaft bearing bore until it hits the bearing stop key 8 When properly installed a portion of the journal bearing will extend into the valve body bore 4 Insert one journal bearing from the valve body bore into the shaft bearing bore opposite the journal bearing installed in step 3 When correctly ins
36. talled this journal bearing will be flush with the valve body bore 5 Install the valve disk by placing the disk into the valve body bore so the curved side of the disk passes through the end of the valve body that does not contain the T slot Align the shaft bore in the disk with the bearing bores 6 Insert the drive shaft end opposite the splined end into the valve body through the packing box Push the shaft through the bearing stop Taking care not to dislodge the journal bearing push the shaft through the journal bearing and the valve disk and into the bore on the opposite side of the valve body A31D Valve Instruction Manual April 2014 D500248X012 CAUTION To avoid damage to the taper key tangential pins valve disk or shaft s resulting from the application of excessive force use appropriate care when driving the key or pins into the disk hub and shaft s Use the right tool Do not use excessive force 7 Besure the taper key disk shaft joint is free of oil or grease If necessary remove any excess welding material from the taper key 8 Align the taper key hole in the shaft with the holes in the shaft boss on the disk Insert the taper key Use a flat end punch to drive the taper key until solid contact is felt Measure the depth of the taper key head for a reference during the following steps a Drive the taper key in farther as follows VALVE SIZE NPS MINIMUM DEPTH TO DRIVE TAPER KEY AFTER INITIAL SOLID CONTACT CL150
37. talled in the preferred direction See table 3 For assistance in selecting the appropriate combination of actuator action and open valve position consult your Emerson Process Management sales office WARNING To avoid personal injury or property damage resulting from the sudden release of pressure e Always wear protective gloves clothing and eyewear when performing any maintenance operations to avoid personal injury e Do not install the valve assembly where service conditions could exceed the limits given in this manual or on the nameplates Use pressure relieving devices as required by government or accepted industry codes and good engineering practices to protect from over pressurizing the system e Check with your process or safety engineer for any additional measures that must be taken to protect against process media e If installing into an existing application also refer to the WARNING at the beginning of the Maintenance section in this instruction manual CAUTION When ordered the valve configuration and construction materials were selected to meet particular pressure temperature pressure drop and controlled fluid conditions Responsibility for the safety of process media and compatibility of valve materials rests solely with the purchaser and end user Since some body trim material combinations are limited in their pressure drop andtemperature range capabilities do not apply any other conditions to the valve without f
38. the actuator before installing the valvelactuator assembly or cycle the valve into the fully closed position Then take appropriate steps to be sure that the actuator does not cause the valve to open during installation Figure 3 Properly Installed Valve GE62595 A 1 See figure for recommended valve orientation 2 Position the valve between the flanges Be sure to leave enough room for the flange gaskets Install the lower flange bolts 3 Select the appropriate gaskets for the application Flat sheet spiral wound or other gasket types made to the ASME B16 5 standard or user s standard can be used on A31D valves depending on the service conditions of the application 4 Install the remaining flange bolts 5 Tighten the flange bolts in an alternating criss cross fashion to a torque value of one fourth of the final bolting torque Repeat this procedure several times increasing the torque value each time by a fourth of the final desired torque After applying the final torque value tighten each flange bolt again to allow for gasket compression Packing Adjustment and Shaft Bonding A WARNING Personal injury could result from packing leakage Valve packing was tightened before shipment however the packing might require some readjustment to meet specific service conditions Check with your process of safety engineer for any additional measures that must be taken to protect against process media 1 For PTFE or graphite
39. the proper procedures refer to the list below e CL150 NPS 3 through 8 One piece shaft with 1 taper key see figure 9 e CL150 NPS 10 and 12 Two piece shaft 1 taper key in the drive shaft 1 tangential pin in the follower shaft see figure 10 e CL150 NPS 14 through 24 Two piece shaft with 2 tangential pins in the drive shaft 1 tangential pin in the follower shaft see figure 11 e CL300 NPS 3 through 6 One piece shaft with 1 taper key see figure 9 e CL300 NPS 8 and 10 Two piece shaft 1 taper key in the drive shaft 1 tangential pin in the follower shaft see figure 10 e CL300 NPS 12 through 24 Two piece shaft with 2 tangential pins in the drive shaft 1 in the follower shaft see figure 11 5 Proceed as appropriate using the following instructions For valves with taper key locate the taper key key 9 figure 7 which runs through the drive shaft boss on the back of the valve disk Using a pin punch on the smaller end of the key drive it out of the disk and shaft Driving a taper key in the wrong direction will tighten it Note Certain valve sizes may have a taper key that is arc spot welded in place To remove the key use a punch on the smaller end of the taper key and drive it out of the disk and shaft breaking the weld For valves with tangential pins locate the tangential pins key 25 in the drive shaft key 3 and the tangential pin key 25 in the follower shaft key 4 a Use a threaded rod wit
40. tops or Travel steps can result in damage to the valve shaft s or other valve components 10 The final seating of the retaining ring screws can now be done For the screw torque values refer to table 5 A31D Valve April 2014 Instruction Manual D500248X012 Figure 6 Anti Blowout Design Details PACKING SHAFT FLANGE ANNE BLOWOUT jud PACKING FLANGE HEX NUT E BLOWOU enm PACKING FLANGE FOLLOWER ANTI BLOWOUT d fT FLANGE STUD Na EN HEX NUT BN NA AN TYPICAL VALVE SHAFT PACKING SHOULDER PACKING BODY FOLLOWER TYPICAL PTFE V RING C0766 A7090 PACKING STANDARD PACKING ARRANGEMENT STANDARD PACKING ARRANGEMENT CUTAWAY NPS 3 THROUGH 12 CUTAWAY NPS 14 THROUGH 24 PACKING FLANGE d HEX NUT STUD HEX NUT PACKING FLANGE A l ACCES HEX JAM SPRING PACK 2 14 EUBRICANT NUT ASSEMBLY 4 4 E SW HEX NUT ANTI BLOWOUT E EE eed a M RING is S NE ANTI BLOWOUT TN em FLANGE We N 8 NC TYPICAL ANTI EXTRUSION 5 PACKING RING A ACKING VALVE BODY B2449 ENVIRO SEAL ARRANGEMENT PTFE SHOWN NPS 3 THROUGH 12 16 PACKING BOX RING ENVIRO SEAL ARRANGEMENT PTFE SHOWN NPS 14 THROUGH 24 Instruction Manual A31D Valve D500248X012 April 2014 Anti Blowout Protection Packing Valve Shaft s Disk and Bearing Maintenance Removal Note NPS 3 through 8 valves CL150 and NPS 3 through 6 va
41. tor travel can result in damage to the valve shaft s or other valve components Instruction Manual A31D Valve D500248X012 April 2014 Packing Maintenance The A31D valve is designed so the packing can be replaced without removing the valve from the process pipeline CAUTION For non ENVIRO SEAL packing Tighten the packing follower nuts only enough to prevent shaft leakage Excessive tightening will accelerate wear of the packing and could produce higher friction loads on the valve stem Usually packing leakage can be eliminated by merely tightening the hex nuts key 15 located above the packing follower key 12 while the valve is in the pipeline However if leakage continues the packing must be replaced For PTFE ENVIRO SEAL packing system refer to instruction manual Fisher ENVIRO SEAL Packing System for Rotary Valves D101643X01 2 see figure 8 CAUTION Never use a wrench or pliers on the drive shaft key 3 A damaged shaft could cut the packing and allow leakage 1 Before loosening any parts on the valve release the pressure from the pipeline Then remove the hex nuts key 15 and lift off the packing follower key 12 2 Remove the hex jam nuts key 17 and the anti blowout flange key 10 Remove the packing follower key 12 Refer to figure 6 for details of the anti blowout protection parts The packing is now accessible 3 Use a packing extractor to remove packing Insert the corkscrew like end of the tool int
42. ue value each time by a forth of the final desired torque When the final torque value has been applied tighten each flange bolt again to allow for gasket compression A WARNING An A31D valve body is not grounded when installed in a pipeline To avoid personal injury or property damage always make sure that the valve body is grounded to the pipeline before putting the valve assembly into operation in a flammable or hazardous atmosphere To provide shaft and disk to body grounding attach a grounding strap to the shaft with a clamp and connect the other end of the grounding strap assembly to the valve body 7 If necessary attach a grounding strap from the valve body or pipeline to the valve shaft For additional information on grounding procedures contact your Emerson Process Management sales office Instruction Manual A31D Valve D500248X012 April 2014 Table 2 Stud Bolt and Cap Screw Chart for Double Flange Valves 4 6 0 2 6 2 24 8 8 8 6 16 24 24 32 32 mooted 8 8 8 8 8 8 8 8 8 6 6 2 B Length of Cap Screws 2 Inch mamam m Ts ayes wu No offappedtoles om s s s s s 8 mh 412 5 63 712 34 93 Nooftapscrews T a s s s
43. wer lt nut sk Packing stud 2 2 1 1 Packing flange 1 Spring pack assembly 1 1 Packing Set cai O 111 112 1 Not included in graphite packing kit 2 Only 1 req d for NPS 18 CL300 NPS 20 CL150 and NPS 24 CL150 23 A31D Valve Instruction Manual April 2014 D500248X012 Repair Kits PTFE Repair kits include a single PTFE packing set and anti extrusion washers Graphite packing sets include graphite packing rings and carbon anti extrusion rings See table 8 for PTFE repair kit part numbers Table 8 Retrofit and Repair Kit Part Numbers SHAFT RETROFIT KITS REPAIR KITS VALVE SIZE NPS PRESSURE RATING DIAMETER mm Inch SIE O W3pneg SE 75 75 SIE 3 8 1516 238 1516 SE 1516 318 1 14 SIE ZKTUETE 413 1 58 cs 8 1 14 AEE 2 SIE 50 80 50 381 141 2 5720174 SE 5 S SC N CL300 63 5 2 1 2 RRTYX000222 RRTYX000182 RRTYX000222 CL150 50 8 2 CL150 63 5 2 1 2 N 1 Shaft diameter Diameter through the packing box 2 Contact your Emerson Process Management sales office 24 Instruction Manual A31D Valve
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