Data Sheet

ES Valve
D100021X012
Product Bulletin
51.1:ES
December 2012
9
Table 6. Valve Body/Trim T emperature Capab i lities for Metal Trim Parts Only
BODY/BONNET
MATERIAL (ALSO
FOR BOTTOM
FLANGE IF USED)
TRIM
DESIGNATION
VALVE SIZE AND DESIGN
MATERIAL
TEMPERATURE
CAPABILITY
_C _F
Min Max Min Max
Cast iron body w/
steel bonnet
1, 3, 27, 29, 37, or 57 All -29 232 -20 450
WCC steel
1, 37, or 57 All -29 427 -20 800
29 All -29 316 -20 600
54 All -29 260 -20 500
CF8M (316 SST)
27 All -198
(1)
343 -325
(1)
650
28 All -198
(1)
149 -325
(1)
300
29 All -198
(1)
316 -325
(1)
600
LCC steel
1 All -29 343 -20 650
4 All -46 210 -50 410
29 All -46 316 -50 600
37 All -46 343 -50 650
WC9 chrome
moly steel
1, 37, or 57 All -29 427 -20 800
3 All -29 427 -20 800
3H All 427 566 800 1050
27
Through NPS 3 all designs; NPS 8 ES -29 343 -20 650
NPS4or6ESandEAS -29 343 -20 650
29 All -29 316 -20 600
1. May be used down to -254_C (-425_F) if manufacturing process includes Charpy impact test.
Table 7. Bonnet Selec tion Guidelines
BONNET STYLE PACKING MATERIAL
IN-BODY PROCESS TEMPERATURE LIMITS
(1)
_C _F
Plain:
JStandard for all valves through
NPS 6 with 2-13/16 yoke
boss diameter
JStandard for NPS 6 and 8 valves in cast iron
and WCC steel bonnet material with 3-9/16
yoke boss diameter
PTFE V-ring -18 to 232 0 to 450
PTFE/Composition -18 to 232 0 to 450
Graphite ribbon/filament
-18 to maximum shown
in table 9
0 to maximum shown
in table 9
Style 1 Cast Extension:
JStandard for NPS 8 valves in S31600
bonnet material with 3-9/16 yoke boss
diameter
PTFE V-ring
-46 to 427 -50 to 800
PTFE/Composition
Graphite ribbon/filament
-46 to maximum shown
in table 9
-50 to maximum shown
in table 9
Style 2 Cast Extension:
JOptional for NPS 2 through 4 valves with
2-13/16 inch yoke boss diameter
JOptionalforNPS6and8valves
with 3-9/16 yoke boss diameter. Not
available for NPS 8 valve in S31600
bonnet material
PTFE V-ring
-101 to 427 -150 to 800
PTFE/Composition
Graphite ribbon/filament
-101 to maximum shown
in table 9
-150 to maximum shown
in table 9
ENVIRO-SEAL bellows seal bonnet
PTFE
For exceptional stem sealing
capabilities. See Bulletin 59.1:070,
ENVIRO-SEAL Bellows Seal Bonnets, for
pressure/temperature ratings.
For exceptional stem sealing
capabilities. See Bulletin
59.1:070, ENVIRO-SEAL Bellows
Seal Bonnets, for
pressure/temperature ratings.
Graphite ULF
1. These in-body process temperatures assume an outside, ambient temperature of 21_C(70_F) and no insulation on the bonnet. When using any packing at low process temperatures, a cast
extension bonnet may have to be used to prevent packing damage which could result from the formation of valve stem frost. Material selection for trim and other components will also be
limiting factors.