Instruction Manual
D500242X012
A31A Cryogenic-Rotary Valve
February 2019
22
Parts Ordering
about the A31A Cryogenic valve, always 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. For parts information on the 14‐ through 24‐inch sizes, please contact your
Emerson sales office.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Automation Solutions 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.
Parts List
Note
For part ordering information contact your
.
Key
Description
1
Valve Body
If you need a valve body as a replacement part, order by valve
size, serial number, and desired material. Contact your Emerson
sales office for assistance.
2
Retaining Ring
3
Disk
4
Shaft
5
Follower Shaft (8‐inch size, Class 300 only)
6*
Taper Key
7*
Seal Ring
8*
Backup Ring
9*
Bearing, Journal (2 req'd) (4 req'd for 8‐inch Class 300)
10*
Bearing, Outboard
11
Packing Follower
12*
Packing Box Ring
13*
Packing Set
13*
Packing Ring (4 req'd)
13*
Packing Washer (3 req'd)
14
Gasket Retainer
8‐inch, Class 300 and larger
Key
Description
15*
Gasket
8‐inch, Class 300 only
16*
Retaining Ring Gasket
17
Stud (2 req'd)
18
Hex Nut (2 req'd)
19
Retaining Ring Screw
20*
Lock Washer
8‐inch, Class 300 only
21
Hex Head Bolt
8‐inch, Class 300 and larger
22
Pipe Plug, optional
23
Nameplate (not shown)
24
Drive Screw (2 req'd) (not shown)
25
Flow Direction Arrow (not shown)
26
Assembly, Disk/Shaft
27
Key
28*
Thrust Bearing (2 req'd) (not shown)
29
Key Retainer Bolt
30
Key Retainer Washer
*Recommended spare parts
