Data Sheet

YD and YS Valves
D100031X012
Product Bulletin
51.1:YD
June 2014
9
Table 3 . Materials and Temperature Limits for Other Parts
PART MATERIAL
IN-BODY PROCESS TEMPERATURE
_C _F
Min Max Min Max
Body-to-bonnet
bolting. See
table 4
for NACE
bolting
materials
and
temperatures
Cast iron body
Cap
screws
Steel SAE Grade 5 -29 232 -20 450
WCC body
Studs Steel SA-193-B7
-29 427
(1)
-20 800
(1)
Nuts Steel SA-194-2H
316 stainless steel (CF8M)
Studs Steel SA-193-B7 (std)
-48 427
(1)
-55 800
(1)
Nuts Steel SA-194-2H (std)
Studs 304 stainless steel SA-320-B8
-198 38 -325 100
Nuts 304 stainless steel SA-194-8
Studs
316 stainless steel SA-193-B8M
(strain-hardened)
-198
(2)
427
(1)
-325
(2)
800
(1)
Nuts 316 stainless steel SA-194-8M
Studs
316 stainless steel SA-194-B8M
(annealed)
-198
(2)
These
mat'ls
not
limiting
factors
-325
(2)
These
mat'ls
not
limiting
factors
Nuts 316 stainless steel SA-194-8M
LCC body
Studs Steel SA-193-B7
-46 343
(1)
-50 650
(1)
Nuts Steel SA-194-2H
Valve plug stem and pin S31600 (316 SST) -254 ---
(1)
-425 ---
(1)
Plug-cage seals
(YD only)
Standard
YD
Cage O-ring and
backup ring
Ethylene propylene
(2)
-40 232 -40 450
Nitrile
(3)
With hydrocarbons, air -34 71 -30 160
With other process fluids -34 82 -30 180
Fluorocarbon
(4)
-18 204 0 400
Seal ring Carbon-filled PTFE -73 232 -100 450
High-temperature
YD
Valve plug seals Graphite -254 ---
(1)
-425 ---
(1)
Retaining ring
gaskets
FGM Graphite/S31600 -254 ---
(1)
-425 ---
(1)
Bonnet gasket FGM Graphite/S31600 -254 ---
(1)
-425 ---
(1)
Retaining ring gaskets (High-temperature YD only) FGM Graphite/S31600 -254 ---
(1)
-425 ---
(1)
Spiral wound gaskets N06600/graphite FGM-standard -198 ---
(1)
-325 ---
(1)
Spiral wound spring
NPS 1 to 3 N06600/graphite FGM -198 ---
(1)
-325 ---
(1)
NPS 4 to 8 N06600 -198 ---
(1)
-325 ---
(1)
Packing (temperatures calculated for
standard bonnet)
Standard PTFE V-ring -40 232 -40 450
Optional
PTFE/composition -73 232 -100 450
Graphite ribbon/filament -254 ---
(1)
-425 ---
(1)
Packing flange, studs, and nuts 316 SST -254 ---
(1)
-425 ---
(1)
Packing box ring 316 SST -254 ---
(1)
-425 ---
(1)
All other metal packing box parts 316 SST -254 ---
(1)
-425 ---
(1)
1. Maximum temperature of this part not a limiting factor.
2. Has excellent moisture resistance with 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.
3. General-purpose material with good resistance to petroleum-based lubricating oils, gasoline, and other hydrocarbons. Not for use with fire-resistant hydraulic oils.
4. For high-temperature air, hydrocarbons, and certain other chemicals and solvents, but cannot be used with ammonia, steam, or hot water.