User Guide

easy-e Valves
Product Flier
PF51.1:E
July 2008
10
Other Valve Parts
PART
VALVE TYPE
OR SIZE
MATERIALS
TEMPERATURE
RANGE, _C
NOTES
Body-to-bonnet
bolting
All sizes and types
except as listed
below
Use for Body
Material:
Cap Screws, Stud, or
Nut Material
- - -
- - -
Cast iron Steel SAE GR 5 cap screws 29 to 232
WCC, C5, and WC9
steel
SA-193-B7 steel studs
SA-194-2H steel nuts
29 to 427
Specify lubricated
nuts for
temperatures
greater than 232_C
CF8M
SA-193-B7 steel studs
SA-194-2H steel nuts
48 to 427
SA-193-B8M stainless steel studs
(strain hardened)
SA-194-8M stainless steel nuts
198 to 427
SA-193B8M stainless steel studs
(annealed)
SA-194-8M stainless steel nuts
The lower limit is
198; other valve
parts determine the
upper limit
- - -
Packing (also refer
to the bonnet
selection table)
All types (see notes for exceptions)
PTFE V-ring 40 to 232
- - -
PTFE/composition 73 to 232
Graphite ribbon/filament in
oxidizing service
198 to 371
Graphite ribbon/filament in
non-oxidizing service
198 to 538
ENVIRO-SEAL and HIGH-SEAL
packing systems with PTFE,
duplex, Kalrez, or graphite
packing
Temperature limits vary with pressure and
fugitive emissions standards; contact your
nearest sales office for information
Flat gaskets
EZ
S31600 stainless steel / graphite 198 to 593
Limit to 427_C in
oxidizing service
PTFE-coated N04400 73 to 149 - - -
All sizes and types except EZ
S31600/graphite in oxidizing
service
198 to 593
Limit to 427_C in
oxidizing service
PTFE-coated N04400 73 to 149 - - -
Spiral-wound gasket All
N06600 nickel alloy 600 /
graphite (flexible graphite)
standard
198 to 593
- - -
N04400 nickel alloy 73 to 232
Soft seat disc ES, ET, EUT, EWS, EWT, EZ PTFE 73 to 204 - - -
Piston ring for ED
type trim
ED and EWD
Graphite in oxidizing service 46 to 427 - - -
Graphite in non-oxidizing service 46 to 482 - - -
Seal ring for ET type
trim
ET, EWT (up to
DN 300 x 200 or NPS 12 x 8 sizes)
Carbon-filled PTFE seal ring with
fluorocarbon backup ring
18 to 204
Do not use
fluorocarbon with
ammonia, steam, or
hot water
Carbon-filled PTFE seal ring with
ethylene-propylene backup ring
40 to 232
Do not use
ethylene-propylene
with
petroleum-based
fluids or other
hydrocarbons
Spring-loaded PTFE seal ring
with N07750 spring and stainless
steel backup ring and retaining
ring
73 to 232 - - -