Data Sheet

EW Valve
D100023X012
Product Bulletin
51.1:EW
August 2012
21
Table 18. Valve/Trim Temperature Capabilities for Fisher EWD, EWS, and EWT Valves with Whisper Trim III Cages
(2)
VALVE/BONNET/
BONNET SPACER
MATERIAL
TRIM DESIGNATION
FROM TABLE 17
VALVE SIZE,
NPS
MATERIAL TEMPERATURE CAPABIL ITY
_C _F
Min Max Min Max
WCC steel or WC9
chrome moly steel
301
8x6or 10 x 6
(3)
12 x 6
-29
-29
338
313
-20
-20
640
595
301C (for soft seats) 8 x 6, 10 x 6
(3)
,or12x6 -29 204 -20 400
304
8x6or 10 x 6
(3)
12 x 6
-29
-29
343
338
-20
-20
650
640
312
8x6or 10 x 6
(3)
12 x 6
-29
-29
204
177
-20
-20
400
350
313 (NACE
(2)
compatible)
8x6or 10 x 6
(3)
12 x 6
-29
-29
232
204
-20
-20
450
400
313C (NACE
(2)
compatible)
(for soft seats)
8x6or 10 x 6
(3)
12 x 6
-29
-29
204
204
-20
-20
400
400
315
8x6or 10 x 6
(3)
12 x 6
-29
-29
204
177
-20
-20
400
350
318 (WCC only) 8 x 6, 10 x 6
(3)
,or12x6 -29 427 -20 800
318(WC9only) 8 x 6, 10 x 6
(3)
,or12x6 -29 593 -20 1100
CF8M (316 SST)
301, 301C (for soft
seats), 304
8x6or 10 x 6
(3)
12 x 6
-29
-29
149
121
-20
-20
300
250
312
8x6or 10 x 6
(3)
12 x 6
not a limiting factor
313 (NACE
(2)
compatible) 8 x 6, 10 x 6
(3)
,or12x6 -29 316 -20 600
313C (NACE
(2)
compatible)
(for soft seats)
8 x 6, 10 x 6
(3)
,or12x6 -29 204 -20 400
315 8 x 6, 10 x 6
(3)
,or12x6 -198 427
(1)
-325 800
(1)
1. May be used up to 538_C (1000_F) if manufacturing process controls carbon content to 0.04% minimum or 0.08% maximum.
2. Unless otherwise noted, all NACE references are to NACE MR0175-2002.
3. NPS 10x6 has a valve outlet area identical to the NPS 8x6.