Model A31A
4
Table 2. Material Temperature Ratings
COMPONENT AND MATERIAL OF CONSTRUCTION
(1)
TEMPERATURE RANGE
COMPONENT AND MATERIAL OF CONSTRUCTION
(1)
_
F
_
C
Body
WCB carbon steel
CF8M (316 SST) ANSI Class 150
CF8M ANSI Class 300
–20 to 800
–325 to 1000
–325 to 1500
–29 to 427
–198 to 538
–198 to 816
Disk
CF8M (316 SST) w/ or w/o Hard coating
CF8M with CoCr-A edge
–325 to 1000
–325 to 1000
–198 to 538
–198 to 538
Shaft
S20910 (Nitronic 50
(2)
)
S17400 (17-4 PH 1025)
S17400 (17-4 PH H1150M)
–325 to 1000
–100 to 850
–320 to 850
–198 to 538
–73 to 454
–196 to 454
Bearings
PEEK
(2)
(standard)
S31600
(3)
–100 to 500
–325 to 1500
–73 to 260
–198 to 816
Packing
PTFE Packing and PTFE ENVIRO-SEAL Packing
Graphite packing
Graphite packing with oxidizing media
–65 to 450
–325 to 1500
–325 to 1000
–54 to 232
–198 to 916
–198 to 538
PTFE Seal Ring
Nitrile Backup O-Ring
Neoprene Backup O-Ring
EPR Backup O-Ring
Fluorelastomer Backup O-Ring
PTFE Backup O-Ring
–20 to 200
–45 to 300
–65 to 360
–20 to 400
–100 to 400
–29 to 93
–43 to 149
–54 to 182
–29 to 204
–73 to 204
Seal Ring and
Backup Ring
UHMWPE
(4)
Seal Ring (Class 150 Only)
Nitrile Backup O-Ring
Neoprene Backup O-Ring
EPR Backup O-Ring
Fluorelastomer Backup O-Ring
PTFE Backup O-Ring
–20 to 200
–45 to 200
–65 to 200
–20 to 200
–100 to 200
–29 to 93
–43 to 93
–54 to 93
–29 to 93
–73 to 93
Phoenix III
R
and/or FireTested Construction
S31600 and PTFE Seal Ring with Nitrile Backup O-Ring
Neoprene Backup O-Ring
EPR Backup O-Ring
Fluorelastomer Backup O-Ring
–40 to 300
–65 to 300
–80 to 400
–40 to 450
–40 to 149
–54 to 149
–62 to 204
–40 to 232
Seal Ring
NOVEX S31600 Seal
(3)
Ring (Class 150)
NOVEX S31600 Seal
(3)
Ring (Class 300)
NOVEX S21800 Seal Ring (Class 300)
–20 to 1000
–20 to 1500
–20 to 1500
–29 to 538
–29 to 816
–29 to 816
Seal Ring
Cryogenic Seal Ring
Contact your Fisher Controls sales representative
or sales office
1. NACE trim constructions are available; consult your Fisher Controls sales office or sales representative.
2. PEEK stands for poly-ether-ether-ketone.
3. For a complete material description, contact your Fisher Controls sales office or sales representative.
4. UHMWPE stands for ultra high molecular weight polyethylene.
The valve is normally shipped as part of a control
valve assembly, with the power actuator mounted on
the valve. If the valve or actuator have been pur-
chased separately, or if the actuator has been re-
moved for maintenance, mount the actuator on the
valve, and adjust actuator travel before installing the
valve into the line. This is necessary due to the mea-
surements that must be made during the actuator cal-
ibration adjustment process. Refer to the Actuator
Mounting section of this manual and to the separate
actuator instruction manual for mounting and adjusting
instructions before proceeding.
WARNING
To avoid personal injury or property
damage resulting from the sudden re-
lease of pressure:
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 in-
dustry codes and good engineering
practices to protect from over-pressuriz-
ing the system.
