Emerson Fisher Posi Seal A31D Instruction Manual

2015-03-30

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Instruction Manual

A31D Valve

D500248X012

April 2014

Fisherr POSI-SEAL™ A31D Double-Flange
High-Performance Butterfly Valve
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
A31D Valve Specifications and Materials
of Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Educational Services . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Removing and Replacing the Actuator . . . . . . . . . 10
Packing Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 11
Removing the Valve . . . . . . . . . . . . . . . . . . . . . . . . . 11
Seal Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
PTFE Seals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
NOVEX, Phoenix III and/or
Phoenix III Fire-Tested Seals . . . . . . . . . . . . 14
Anti-Blowout Design, Packing, Valve Shaft,
Disk, and Bearing Maintenance . . . . . . . . . . . . . 17
Installing the Two-Piece Shaft . . . . . . . . . . . . . 20
Gasket Retainer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 1. Fisher A31D Valve with 2052 Actuator

X0704

Introduction
Scope of Manual
This instruction manual includes installation, maintenance, 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.

www.Fisher.com

Instruction Manual

A31D Valve

D500248X012

April 2014

A31D Valve Specifications and Materials of Construction
Table 1. Fisher A31D Valve Specifications
SPECIFICATION
Valve Body Size

NPS 3, 4, 6, 8, 10, 12, 14, 16, 18, 20, and 24

Pressure Rating

Consistent with CL150 and 300 per ASME B16.34

Valve Body Materials

WCC Steel
CF8M Stainless Steel

Disk Materials

CF8M Stainless Steel

End Connections

Mates with RF flanges per ASME B16.5

Valve Body Style
Shaft Connection
Face-to-Face Dimensions

Double Flange
Spline (standard)
Keyed (optional)
CL150: ISO 5752 Butterfly Valve Short Series
CL300: ISO 5752 Butterfly Valve Long Series
Soft Seal: Bidirectional ANSI/FCI 70-2 Class VI

Shutoff

NOVEX Seal: Unidirectional MSS SP-61(1)

Flow Direction

Reverse (flow direction is into the shaft side of the disk)

Phoenix III Seal: ANSI/FCI 70-2 Class VI
Flow Characteristic

Approximately Linear

Disk Rotation

Clockwise (CW) to close

1, 0.1 scfh per unit of NPS at 80 psi.

Description
The valve is available in a doubleflanged valve body design, with a variety of seals and internal components. The
pressureassisted seal provides tight shutoff against the full class pressure range for the specific type. The splined shaft
combines with a variety of Fisher springanddiaphragm or pneumatic double-acting or spring-return piston actuators.
Maximum inlet pressure/temperature ratings are consistent with ASME CL150 and CL300.

Educational Services
For information 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 III 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 installed 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:
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
D Do not install the valve assembly where service conditions could exceed the limits given in this manual or on the
nameplates.
D Use pressure-relieving devices as required by government or accepted industry codes and good engineering practices
to protect from over-pressurizing the system.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
D 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 and temperature range capabilities, do not apply any other conditions to the valve without first contacting
your Emerson Process Management sales office.

1. 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.

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
April 2014

Instruction Manual
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
WARNING
The edges 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.

1. See table 2 for flange bolt specifications.
2. 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.
3. Position the valve between the flanges. Be sure to leave enough room for the flange gaskets. Install the lower flange
bolts.
4. 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.
5. Install the remaining bolts.
6. 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 torque 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.

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
A31D, CL150, ISO 5752 BUTTERFLY SHORT SERIES

VALVE SIZE, NPS

No. of Through Holes

No. of Tapped Holes

---

Size-Dia. Inch & Thread

5/8 - 11

3/4 - 10

7/8 - 9

1-8

1-1/8

1-1/4 - 8

No. of Stud Bolts

A-Length of Stud Bolts(1), Inch

4-1/2

4-3/4

5-1/2

5-3/4

6-1/4

6-1/2

7-3/8

No. of Cap Screws

---

B-Length of Cap Screws(2), Inch

---

2-1/2

2-3/4

3-1/4

3-3/4

No. of Heavy Hex Nuts

A31D, CL300, ISO 5752 BUTTERFLY LONG SERIES

VALVE SIZE, NPS

No. of Through Holes

No. of Tapped Holes

---

Size-Dia. Inch & Thread

3/4 - 10

7/8 - 9

1-8

1-1/8 - 8

1-1/4 - 8

1-1/2 - 8

No. of Stud Bolts

A-Length of Stud Bolts(1), Inch

4-1/2

5-1/4

6-3/4

7-1/4

7-1/2

8-1/2

8-3/4

9-3/4
8

No. of Cap Screws

---

B-Length of Cap Screws(2), Inch

---

4-3/4

4-1/4

4-1/2

No. of Heavy Hex Nuts

1. Based on
1/8-inch gasket

A
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.

Instruction Manual

A31D Valve

D500248X012

April 2014

Figure 2. Available Seal Configurations
BACKUP
RING

BODY

SEAL RING
RETAINING
RING

RETAINING
RING

NOVEX
SEAL RING

HIGH PRESSURE
AT SHUTOFF 1

VALVE DISK

HIGH PRESSURE
AT SHUTOFF 1

VALVE DISK

NOVEX SEAL

SOFT SEAL WITH
BACKUP O-RING
BODY
BACKUP
RING

METAL
SEAL
RING
RESILIENT INSERT

RETAINING
RING
VALVE DISK

HIGH PRESSURE
AT SHUTOFF 1

PHOENIX III
FIRE-TESTED SEAL
NOTE:
1
FOR OPTIMUM SEAL PERFORMANCE, THE PREFERRED VALVE ORIENTATION 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

Standard soft seal

Bidirectional

Preferred

Novex seal

Unidirectional

Preferred only

Phoenix III seal

Bidirectional
Unidirectional

INSTALLED ORIENTATION

Non Fire-Tested
Preferred
Fire-Tested Preferred

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
SIZE

CL150

CL300

NPS

143

118

156

343

178

176

388

110

243

294

649

152

335

345

760

201

443

563

1240

243

535

591

1303

277

611

706

1556

434

956

1307

2881

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. Refer to the actuator instruction manual to locate the actuator travel stop that controls the closed position of the
valve disk (key 2). When adjusting the travel 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 the actuator before installing the valve/actuator 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 3 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
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 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
VALVE BODY

37A6528-A
A3143-2

VIEW A-A

ACTUATOR
A

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.

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 valve according to the following step.

A31D Valve

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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:
D Do not remove the actuator from the valve while the valve is still pressurized.
D Always wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
D 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.
D 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.
D Vent the power actuator loading pressure.
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 removing the packing hardware or packing rings, or when
loosening the packing box pipe plug.
D 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 actuator 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.

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 (D101643X012) (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 into 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

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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.
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
For larger 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.

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 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
ASME CLASS AND VALVE SIZE, NPS

RETAINING RING SCREWS
Fastener Nominal Size

N•m

CL150: NPS 3, 4, 8, and 10; NPS 3 and 4

#10

4.6

Lbf•in
41

CL150: NPS 6 and 12; CL300:NPS 6, 8, 10, and 12

1/4

100

CL150: NPS 14, 16, 18, 20, and 24; CL300: NPS 14 and 16

5/16

220

CL300: NPS 18 and 20

3/8

400

CL300: NPS 24

1/2

112

996

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
ASME CLASS AND VALVE SIZE, NPS

GASKET RETAINER BOLTS
Fastener Nominal Size

N•m

Lbf•in

CL150: NPS 3 and 10; NPS 3

5/16

167

CL150: NPS 4, 6, 8, 12, 14, 16, 18, 20, 24; CL300:NPS 4, 6, 8, 10, 12, 14

3/8

295

CL300: NPS 16 and 18

1/2

708

CL300: NPS 20 and 24

5/8

161

1428

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.

Figure 5. Typical Seal Installation

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.

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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. When 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. The final 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 III 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-ring 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
D500248X012

A31D Valve
April 2014

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 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. Tap the 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.

10. The final seating of the retaining ring screws can now be done. For the screw torque values, refer to table 5.

Instruction Manual

A31D Valve

D500248X012

April 2014

Figure 6. Anti-Blowout Design Details

PACKING
FLANGE

SHAFT
ANTIBLOWOUT
RING
PACKING
ANTIFLANGE
BLOWOUT
FLANGE
ANTI-BLOWOUT
FLANGE

PACKING
FOLLOWER

TYPICAL
PACKING

VALVE
BODY

C0766

HEX NUT

STUD
HEX NUT

SHAFT
SHOULDER

PACKING
FOLLOWER
TYPICAL PTFE V-RING
PACKING

A7090

STANDARD PACKING ARRANGEMENT
CUTAWAY, NPS 14 THROUGH 24

STANDARD PACKING ARRANGEMENT
CUTAWAY, NPS 3 THROUGH 12

PACKING
FLANGE

STUD AND
HEX NUT

HEX NUT

STUD

PACKING
FLANGE
SPRING PACK
ASSEMBLY
ANTI-BLOWOUT
RING

HEX JAM
NUT
ANTI-BLOWOUT
FLANGE

SPRING PACK
ASSEMBLY

HEX NUT
SHAFT
SHOULDER

ANTI-EXTRUSION
RING

TYPICAL
PACKING

VALVE BODY

LUBRICANT

ANTI-BLOWOUT
FLANGE

PACKING
SET

PACKING
BOX RING

B2449

ENVIRO-SEAL ARRANGEMENT (PTFE SHOWN)
NPS 3 THROUGH 12

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 valves (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 indicated.
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 tool to 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 the proper procedures, refer to the list below.
D CL150, NPS 3 through 8: One-piece shaft with 1 taper key, (see figure 9).
D 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).
D 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).
D CL300, NPS 3 through 6: One-piece shaft with 1 taper key, (see figure 9).
D 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).
D 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 with 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
D500248X012

A31D Valve
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 thrust 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 installed, 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.

Instruction Manual

A31D Valve

D500248X012

April 2014

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. 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.
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 and 300, NPS 3, 4, 6 valves, & 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 CL150/300

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 (D101643X012).
Figure 7. Fisher A31D Taper Key Weld Location
WELD LOCATION
TAPER KEY
SHAFT

WELD
LOCATION

DISK
A5947

MINIMUM TAPER KEY ENGAGEMENT

MAXIMUM TAPER KEY ENGAGEMENT

VIEW A
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).

Instruction Manual
D500248X012

A31D Valve
April 2014

Key numbers in this procedure are shown in figure 9, 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.

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 follower 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.

Instruction Manual

A31D Valve

D500248X012

April 2014

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.
8. With the disk (key 2) 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.
9. Align the holes in the shafts with the holes in the disk.

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, & NPS 10 CL300 valves

6 mm (0.219 INCHES)

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. Refer to 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.

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 retainer in place.
3. Be sure 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.

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
Key

Description

Quantity

Anti-blowout follower

Jam nut

100

Packing stud

101

Packing nut

102

Packing flange

103

Spring pack assembly

105

Packing Set

106

Anti-extrusion washer

2(1)

107

Packing box ring

2(2)

111

Tag

112

Cable

1. Not included in graphite packing kit.
2. Only 1 req'd for NPS 18 CL300, NPS 20 CL150 and NPS 24 CL150.

Instruction Manual

A31D Valve

D500248X012

April 2014

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
VALVE SIZE, NPS
3

PRESSURE RATING

SHAFT
DIAMETER(1),
mm (Inch)

RETROFIT KITS
PTFE

PTFE

CL150

14.3 (9/16)

---

RRTYX000112

CL300

14.3 (9/16)

---

RRTYX000112

CL150

17.5 (11/16)

RRTYXRT0212

RRTYX000122

CL300

17.5 (11/16)

RRTYXRT0212

RRTYX000122

CL150

23.8 (15/16)

RRTYXRT0222

RRTYX000132

CL300

23.8 (15/16)

RRTYXRT0222

RRTYX000132

CL150

23.8 (15/16)

RRTYXRT0232

RRTYX000132

CL300

31.8 (1-1/4)

RRTYXRT0242

RRTYX000142

CL150

28.6 (1-1/8)

RRTYXRT0252

RRTYX000092

CL300

41.3 (1-5/8)

(2)

RRTYX000152

CL150

31.8 (1-1/4)

RRTYXRT0262

RRTYX000142

CL300

47.6 (1-7/8)

(2)

RRTYX000162

CL150

34.9 (1-3/8)

RRTYX000172

CL300

50.8 (2)

RRTYX000182

CL150

38.1 (1-1/2)

RRTYX000192

CL300

57.2 (2-1/4)

CL150

44.5 (1-3/4)

CL300

63.5 (2-1/2)

RRTYX000222

CL150

50.8 (2)

RRTYX000182

CL150

63.5 (2-1/2)

RRTYX000222

4
6
8
10
12
14
16
18

1. Shaft diameter: Diameter through the packing box.
2. Contact your Emerson Process Management sales office.

REPAIR KITS

(2)

RRTYX000202
RRTYX000212

Instruction Manual

A31D Valve

D500248X012

April 2014

Parts List

Key

Note
Part numbers are shown for recommended spares only. For part
numbers not shown, contact your Emerson Process Management sales
office.

Key
1

2
3
4
5*
6*
7*
8
9*

10
11
12
13*

Description

Part Number

Valve Body
If you need a valve body as a replacement part, order the
valve size, ASME rating and desired material. Contact your
Emerson Process Management sales office.
Disk
Drive Shaft
Follower Shaft
Seal Ring (See following table)
Backup Ring (See following table)
Bearing (See following table)
Bearing Stop
Taper Key
NPS 3
11B0674X012
NPS 4
11B0674X012
NPS 6
11B0695X012
NPS 8
11B0695X012
NPS 10
11B0722X012
NPS 12
11B0722X012
CL300
NPS 3
11B0674X012
NPS 4
11B0674X012
NPS 6
11B0695X012
NPS 8
11B0722X012
NPS 10
11B4684X012
Anti-Blowout Flange
Packing Flange
Packing Follower
Packing Set
PTFE, V-Ring
CL150
NPS 3
V110247X012
NPS 4
V143725X012
NPS 6
V143726X012
NPS 8
V143726X012
NPS 10
V110259X012
NPS 12
V110262X012
NPS 14
V111433X012
NPS 16
V167865X012
NPS 18
V110460X012
NPS 20
V111437X012
NPS 24
V111699X012
CL300
NPS 3
V110247X012
NPS 4
V143725X012
NPS 6
V143726X012
NPS 8
V110262X012
NPS 10
V143727X012
NPS 12
V146281X012
NPS 14
V111437X012
NPS 16
V110631X012
NPS 18
V111699X012

*Recommended spare parts

14
15
16
17
18
19
20
21*
22
23
24*
25
26*

Description
NPS 20
NPS 24
Graphite
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
Stud (2 req'd)
Hex nut (2 req'd)
Anti-blowout ring
Hex Jam Nut (2 req'd)
Retaining Ring
Retaining Ring Screw
Gasket Retainer
Gasket (See following table)
Lockwasher (4 req'd)
Cap Screw (4 req'd)
Thrust Bearing (See following table)
Tangential Pin
Retaining Ring Gasket
NOVEX and Phoenix III Seal
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

Part Number
V111704X012
V111708X012

V111021X012
V143697X012
V143698X012
V143698X012
V111025X012
V111026X012
V111434X012
V167864X012
V111028X012
V111438X012
V111442X012
V111021X012
V143697X012
V143698X012
V111026X012
V143832X012
V146282X012
V111438X012
V111696X012
V111442X012
V111705X012
V111709X012

16B0749X012
16B0668X012
16B0738X012
16B0669X012
16B0740X012
16B0670X012
V161467X012
V161468X012
V161469X012
V112062X012
V161471X012
16B0749X012
16B0668X012
16B0738X012
16B0739X012
16B0680X012
16B0741X012
V113741X012
V112064X012
V161469X012
V112062X012

Instruction Manual

A31D Valve

D500248X012

April 2014

Key
27
28
29
30
31
33
34
35

Description
NPS 24
Cap Screw - Actuator (4 req'd) (not shown)
Hex Nut - Actuator (4 req'd) (not shown)
Nameplate (not shown)
Drive Screw (2 req'd) (not shown)
Key
Flow Direction Arrow (not shown)
Packing Box Ring
Disk/Shaft/Pin Assembly (not shown)

Part Number
V124867X012

ENVIRO-SEAL Packing System
(See figure 8)
10
17
100
101
102
103
105*

Anti-Blow Flange
Hex Jam Nut (4 req'd)
Packing Flange Stud (4 req'd)
Packing Flange Nut (4 req'd)
Packing Flange, SST
Spring Pack Assembly
Packing Set
Use with PTFE packing
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
Use with Graphite packing
CL150
NPS 3

12B9122X012
12B9236X012
12B9245X012
12B9245X012
12B9078X012
12B9258X012
14B3490X012
14B3495X012
13B9155X012
13B9164X012
12B7782X012
12B9122X012
12B9236X012
12B9245X012
12B9258X012
13B9272X012
13B9273X012
13B1964X012
14B3647X012
12B7782X012
13B9164X012
14B5730X012

---

Key

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
106* Anti-Extrusion Ring, Composition/graphite
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
107
Packing Box Ring
111
Tag (not shown)
112
Cable Tie (not shown)
113
Lubricant

*Recommended spare parts

Part Number
13B8816X042
13B8816X082
13B8816X082
13B8816X102
13B8816X122
14B3541X112
14B3541X122
14B3541X032
14B3541X082
14B3541X042
--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

14B0095-A

STACKING ORDER OF
PTFE PACKING RINGS

34B7524-B

PTFE PACKING SYSTEM

14B0086-A

34B7524-B

STACKING ORDER OF
GRAPHITE PACKING RINGS

GRAPHITE PACKING SYSTEM

NOTE:
1 VALVES WITH SHAFTS LARGER THAN 38.1 mm (1-1/2 INCH) USE GRAPHITE RINGS

Instruction Manual

A31D Valve

D500248X012

April 2014

Key 5* Seal Ring
VALVE SIZE, NPS

SOFT SEAL
PTFE

PHOENIX III SEAL
UHWMPE

S31600/PTFE

CL150

NOVEX
S31600

V143521X012

V143521X022

V143525X012

V158982X042

V143539X012

V143539X022

V143490X012

V158984X042

V143443X012

V143443X022

V143456X012

V158987X042

V143645X012

V143645X022

V143648X012

V158992X022

V149969X012

V149969X022

V150256X012

V158989X032

V149970X012

V149970X022

V150022X012

V158991X012

V168932X012

V168932X022

V140831X012

V159013X012

V111337X012

V111337X022

V140857X012

V159014X022

V111340X012

V111340X022

V114458X012

V159026X022

V111343X012

V111343X022

V142359X012

V159044X022

V111349X012

V111349X022

V142384X012

V159146X022

CL300

METAL SEAL

S21800

V143521X012

---

V143525X012

V158982X052

V143539X012

---

V143490X012

V158984X052

V143443X012

---

V143456X012

V158987X052

V110421X012

---

V142381X012

V163822X052

V143588X012

---

V143580X012

V166480X052

V146274X012

---

V146278X012

V162052X052

V111626X012

---

V142584X012

V164731X022

V111629X012

---

V140837X012

V168015X032

V111632X012

---

V114459X012

V167979X022

V111635X012

---

V114462X012

V167658X022

V111638X012

---

V142372X012

V164730X022

*Recommended spare parts

Instruction Manual

A31D Valve

D500248X012

April 2014

Key 6* Backup RIng
VALVE SIZE, NPS

FKM

NITRILE

EPR

CHLOROPRENE

Soft Seal PTFE / UHMWPE CL150
3

V143826X012

V143826X022

V143826X032

V143826X042

V110183X012

V110183X022

V110183X032

V110183X042

V110190X022

V110190X012

V110190X032

V110190X042

V110195X012

V110195X022

V110195X032

V110195X042

V110199X012

V110199X022

V110199X032

V110199X042

V110203X012

V110203X022

V110203X032

V110203X042

V111360X012

V111360X022

V111360X032

V111360X042

V111365X012

V111365X022

V111365X032

V111365X042

V111370X012

V111370X022

V111370X032

V111370X042

V111375X012

V111375X022

V111375X032

V111375X042

V111385X012

V111385X022

V111385X032

V111385X042

Soft Seal PTFE CL300
3

V143826X012

V143826X022

V143826X032

V143826X042

V110183X012

V110183X022

V110183X032

V110183X042

V110190X022

V110190X012

V110190X032

V110190X042

V110428X012

V110428X062

V110428X032

V110428X042

V115324X012

V115324X022

V115324X032

V115324X042

V110436X012

V110436X052

V110436X062

V110436X032

V111648X012

V111648X022

V111648X032

V111648X042

V111653X012

V111653X022

V111653X032

V111653X042

V111370X012

V111370X022

V111370X032

V111370X042

V111375X012

V111375X022

V111375X032

V111275X042

V111658X012

V111658X022

V111658X032

V111658X042

Phoenix III 316/PTFE CL150
3

V151078X012

---

V151078X062

---

V110689X012

---

V110689X062

---

V151079X012

---

V151079X062

---

V143629X012

---

V143629X062

---

V110432X012

---

V110432X062

---

V110436X012

---

V110436X062

---

V111647X012

---

V111648X032

---

V111360X012

---

V111360X032

---

V111365X012

---

V111365X032

---

V111375X012

---

V111375X032

---

V111385X012

---

V111385X032

---

Phoenix III 316/PTFE CL300
3

V151078X012

---

V151078X062

---

V110689X012

---

V110689X062

---

V151079X012

---

V151079X062

---

V110428X012

---

V110428X032

---

V128394X012

---

V128394X062

---

V110436X012

---

V110436X062

---

V110203X012

---

V110203X032

---

V111360X012

---

V111360X032

---

V111365X012

---

V111365X032

---

V111370X012

---

V111370X032

---

V111375X012

---

V111375X032

---

*Recommended spare parts

Instruction Manual

A31D Valve

D500248X012

April 2014

Key 7* Bearing
VALVE SIZE, NPS

QUANTITY NEEDED

PEEK

316 / NITRIDE

CL150
3

V166262X012

V166484X012

V166300X012

V166485X012

V166284X012

V166462X012

V166285X012

V167379X012

V166266X012

V167380X012

V166267X012

V166460X012

3(1)
2(2)
7(3)

----V157057X012

V161474X022
V111398X032
---

4(3)

V157058X012

V161472X022

4(3)

V157059X012

V131700X022

4(3)

V157060X012

V169414X012

4(3)

V157061X012

V127742X032

CL300
3

V166262X012

V166484X012

V166300X012

V166485X012

V166284X012

V166462X012

V166418X012

V166460X012

V166419X012

V159619X012

V166420X012

V166487X012

4(3)

V168185X012

V168528X022

4(3)

V168186X012

V128066X032

4(3)

V168187X012

V170455X012

4(3)

V168188X012

V131699X042

4(3)

V168189X012

V131703X042

1. Upper bearing
2. Lower bearing
3. Both upper and lower bearings

*Recommended spare parts

Instruction Manual

A31D Valve

D500248X012

April 2014

Key 21* Gasket
SOFT SEAL

VALVE SIZE, NPS

METAL / PHOENIX III

Standard and NACE

Standard
CL150

16B0782X022

16B0782X012

V165568X022

V165568X012

V165568X022

V165568X012

V165568X022

V165568X012

V124605X022

V124605X012

V165568X022

V165568X012

V125000X022

V125000X012

V125001X012

V125002X022

V125002X012

V124604X022

V124603X022

V124603X012

CL300
3

16B0782X022

16B0782X012

V165568X022

V165568X012

V165568X022

V165568X012

V124605X022

V124605X012

V148921X022

V148921X012

V135209X022

V135209X012

V124604X022

V124604X012

V139033X022

V139033X012

V139502X022

V139502X012

V139619X022

V139619X012

V135138X022

V135138X012

Key 24* Thrust Bearing
VALVE SIZE, NPS

QUANTITY NEEDED

PEEK

316/NITRIDE

CL150
3

---

V166264X012

V167381X012

V166265X012

V167382X012

V159686X012

V169332X022

V159687X012

V168511X022

V159688X012

V131701X022

V159689X012

V111417X022

V159690X012

V127739X032

CL300
3

---

V166421X012

V166461X012

V166422X012

V159620X012

V166423X012

V166489X012

V168180X012

V168530X022

V168181X012

V131681X022

V168182X012

V131702X022

V168183X012

V128345X022

V168184X012

V152839X012

*Recommended spare parts

Instruction Manual

A31D Valve

D500248X012

April 2014

Figure 9. Fisher A31D Valve Body Assembly, NPS 3-8 CL150 and NPS 3-6 CL300

1
2

USE ONLY WITH SOFT SEAL AND PHOENIX III SEAL

USE WITH NOVEX SEAL, PHOENIX III SEAL, AND
CRYOGENIC VALVES
NOT SHOWN: KEYS 27, 28, 32, 33, 111, 112, 113

GE57850-A

Instruction Manual

A31D Valve

D500248X012

April 2014

Figure 10. Fisher A31D Valve Body Assembly, NPS 10-12 CL150 and NPS 8-12 CL300

3
3
3
3

1
2

USE ONLY WITH SOFT SEAL AND PHOENIX III SEAL

USE WITH NOVEX SEAL, PHOENIX III SEAL, AND CRYOGENIC VALVES

INCLUDED IN FIND NUMBER 35 (DISK SHAFT ASSEMBLY NPS 12 CL300)

GE57889-A

NOT SHOWN: KEYS 27, 28, 32, 33, 111, 112, 113

Instruction Manual

A31D Valve

D500248X012

April 2014

Figure 11. Fisher A31D Valve Body Assembly, NPS 14-24 CL150 and CL300

1
GE62596-A

USE ONLY WITH SOFT SEAL AND PHOENIX III SEAL

PARTS NOT SHOWN: KEYS 26, 29, 32, 33, 38, 111, 112, 113

Instruction Manual
D500248X012

A31D Valve
April 2014

Instruction Manual
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 in 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 guarantees, 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, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore

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Create Date                     : 2014:03:18 13:23:36-05:00
Modify Date                     : 2014:03:18 13:24:14-05:00
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Page Count                      : 36

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Emerson Fisher Posi Seal A31D Instruction Manual

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