Data Sheet

EW Valve
D100023X012
Product Bulletin
51.1:EW
August 2012
24
Table20.MaterialsandTemperatureLimitationsforOtherParts
PART MATERIAL
MATERIAL TEMPERATURE CAPABILITY
_CMin
_C
Max
_FMin _FMax
Body-to-bonnet
bolting (see table 24
for NACE bolting
materials and
temperature limits)
WCC or WC9 valve body
Studs Steel SA-193-B7, or steel SA-193-B7M for sour service
-29 427 -20 800
Nuts Steel SA-194-2H, or steel SA-194-2Mforsourservice
LCC valve body
Studs Steel SA-193-B7
-46 371 -50 700
Nuts Steel SA-194-2H
WC9 valve body
Studs Steel SA-193-B16
-29 593 -20 1100
Nuts Steel SA-194-7
CF8M (316 SST)
valve body
Studs Steel SA-193-B7
-48 427 -55 800
Nuts Steel SA-194-2H
Studs Steel SA-193-B7Mforsourservice -46 427 -50 800
Nuts Steel SA-194-2HM for sour service -46 343 -50 650
Studs 304 SST SA-320-B8
-254 38 -425 100
Nuts 304 SST SA-194-8
Studs 316 SST SA-193-B8M (strain hardened)
-198
(1)
427 -325
(1)
800
Nuts 316 SST SA-194-8M
Studs 316 SST SA-193-B8M
-198
(1)
649 -325
(1)
1200
Nuts 316 SST SA-194-8M
Disk (all soft-seat constructions) PTFE -73 204 -100 400
EWD
piston ring
Std. for NPS 4x2 thru 12x6 Graphite (FMS 17F27)
-46
(2)
427 -50
(2)
800
-46
(2)
482 -50
(2)
900
Std. for NPS 10x8 and 12x8;
optional for NPS 4x2 thru 12x6
Graphite
FMS
17F39
Oxidizing service–all sizes -46
(2)
538 -50
(2)
1000
Nonoxidizing
service
NPS 12x8 CL900 and 12x8 CL600
and smaller
-46
(2)
593 -50
(2)
1100
Standard NPS 4x2 through 12x6 EWT valve plug seal
(except valve with
Cavitrol III cage)
Backup ring
Fluorocarbon
(3)
-18 204 0 400
Ethylene-propylene
(4)
-40 232 -40 450
Nitrile
(5)
For use with hydrocarbons -34 71 -30 160
For use with other fluids -34 93 -30 200
Seal ring Carbon-filled PTFE -73 232 -100 450
Spring-loaded EWT or EWT-1 valve
plug seal
(6)
(standard for NPS 10x8 and
12x8 valve regardless of cage and all NPS 4x2 through
12x6 valves with Cavitrol III cage; optional in NPS 4x2
through 12x6 valves with other than Cavitrol III cages)
Backup ring S41600 (416 SST) -29 427 -20 800
Retaining ring S30200 (302 SST) -254 593 -425 1100
Seal ring PTFE with N10276 Spring -73 232
(10)
-100 450
(10)
Anti-extru-
sion rings
PEEK (PolyEtherEtherKetone) ---
(11)
---
(11)
Valve plug stem and p in S31600 (316 SST) (S20910, NACE Std) -198
(1)
593 -325
(1)
1100
Load ring (NPS 10x8 and 12x8 EWD, EWS, and EWT only)
CB7CU-1(17-4PH SST) -102 316 -150 600
N07718
(7)
-254 593 -425 1100
N05500
(7)
-240 260 -400 500
Seat ring, bonnet and cage gaskets
FGM (standard) -198 593 -325 1100
PTFE-coated N04400 -73 149 -100 300
Spiral wound gaskets N06600
(7)
/laminated graphite FGM (standard) -198 593 -325 1100
Packing (temperatures shown are material temperature capabilities)
PTFE V-ring -40 232 -40 450
PTFE/composition -73 232 -100 450
Graphite ribbon/filament -198 538
(9)
-325 1000
(9)
Graphite ribbon for high-temperature oxidizing service 371 649 700 1200
Packing flange, studs and nuts when used with standard bonnet S31600 -198
(1)
593 -325
(1)
1100
Packing follower, and packing spring
(8)
or lantern ring S31600
-198
(1)
593 -325
(1)
1100
Packing box ring when used with standard bonnet S31600
Extension bonnet bushing
Trims 1 and 4 S41600 -29 427 -20 800
Other trims S31600 -198
(1)
593 -325
(1)
1100
1. May be used down to -254_C (-425_F) if manufacturing process i ncludes Charpy impact test.
2. This minimum is due to thermal expansion differential between piston ring and cage a t low temperatures.
3. For high-temperature air, hydrocarbons, and certain other chemicals and solvents, but cannot be used with a mmonia, steam, or hot water.
4. Has excellent moisture resistance to hot water and steam and may be used with most fire-resistant hydraulic oils, but cannot be used with petroleum-based fluids and other hydrocarbons.
5. Cannot be used with fire-resistant hydraulic oils.
6. May be used to increase hot water service capability to 232_C(450_F).
7. This material may be used for cyclic temperatures or those above 232_C (450_F).
8. Spring is used only with single PTFE V-ring packing; lantern ring replaces spring in other packings.
9. Except 371_C (700_F) on oxidizing service.
10. If used with PEEK anti-extrusion rings, PTFE /carbon seal ring may be used in temperatures up to 316_C(600_F) for non-oxidizing service or up to 260_C(500_F) for oxidizing service.
11. These materials not limiting factors.