Data Sheet

A31D Valve
D500213X012
Product Bulletin
21.1:A31D
September 2014
6
Table 2. Materials of Construction and Temperature Ratings
COMPONENT AND MATERIAL OF CONSTRUCTION
TEMPERATURE RANGE
_C _F
Valve Body
Carbon steel (SA216 WCC)
CF8M (316 SST)
—29 to 427
—198 to 538
—20 to 800
—325 to 1000
Disc
CF8M (316 SST)
—198 to 538 —325 to 1000
Disc Edge Coating
Chrome Plating (Standard with NOVEX or Phoenix III Seals)
Chrome Coating
—254 to 316
-254 to 593
—425 to 600
-425 to 1100
Shaft
S20910
S17400 (H1025)
S17400 (H1150M)
N07718
—198 to 538
—73 to 427
-196 to 427
-254 to 704
—325 to 1000
—100 to 800
—320 to 800
-425 to 1300
Bearings
PEEK (standard)
S31600
(1)
R30006 (Alloy 6)
—73 to 260
—198 to 816
—198 to 816
—100 to 500
—325 to 1500
—325 to 1500
Packing
PTFE Packing and PTFE ENVIRO-SEAL Packing
Graphite packing
Graphite packing with oxidizing media
Graphite ENVIRO-SEAL Packing
—148 to 232
—198 to 916
—198 to 538
-148 to 315
—325 to 450
—325 to 1500
—325 to 1000
-325 to 600
Seal Ring and Backup Ring
PTFE Seal Ring
Nitrile Backup O-Ring
Chloroprene Backup O-Ring
EPR Backup O-Ring
Fluorocarbon Backup O-Ring (std)
—29 to 93
—43 to 149
—54 to 182
—29 to 204
—20 to 200
—45 to 300
—65 to 360
—20 to 400
UHMWPE
(2)
Seal Ring (CL150 Only)
Nitrile Backup O-Ring
Chloroprene Backup O-Ring
EPR Backup O-Ring
Fluorocarbon Backup O-Ring (std)
—29 to 93
—43 to 93
—54 to 93
—29 to 93
—20 to 200
—45 to 200
—65 to 200
-20 to 200
Phoenix III and/or Fire Tested Construction
S31600 and PTFE Seal Ring with Nitrile Backup O-Ring
Chloroprene Backup O-Ring
EPR Backup O-Ring
Fluorocarbon Backup O-Ring (std)
—40 to 149
—54 to 149
—62 to 204
—40 to 232
—40 to 300
—65 to 300
—80 to 400
—40 to 450
Seal Ring
NOVEX S31600 Seal
(1)
Ring (CL150)
NOVEX S31600 Seal
(1)
Ring (CL300)
NOVEX S21800 Seal
(1)
Ring (CL300)
—254 to 816
—254 to 816
-254 to 816
—425 to 1500
—425 to 1500
—425 to 1500
1. For a complete material description, contact your Emerson Process Management sales office.
2. UHMWPE stands for ultra high molecular weight polyethylene.