Data Sheet

ES Valve
D100021X012
Product Bulletin
51.1:ES
December 2012
13
Table 10. Metal Trim Part Materials for Compatibility with NACE MR0175-2002 (Sour Service) Specifications,
Environmental Restrictions Apply, Refer to Standard
Trim
Designation
Valve Plug Cage
Seat Ring
for Standard
Metal Seat
Construction
Optional
Liner for
Metal Seat
(EAS only)
Disk Seat and
Retainer for Optional
PTFE-Seat
Construction
Valve Stem, Packing
Follower, Lantern
Ring, Packing Box
Ring, and Pin
Load
Ring
(1)
85
(3)
S31600 S31600 with ENC S31600 S31600 ---
Valve stem
is S20910
All other parts
are S31600
N05500
85C
(2, 3)
S31600 S31600 with ENC --- --- S31600
86
(3)
S31600 with seat
hard faced with
CoCr-A
hard facing alloy
S31600 with ENC
R30006
(alloy 6)
--- ---
87
S31600 with seat
and guide hard
faced with CoCr-A
hard facing alloy
S31600 with ENC
R30006
(alloy 6)
--- ---
87C
(2)
S31600 with seat
and guide hard
faced with CoCr-A
hard facing alloy
S31600 with ENC --- --- S31600
1. NPS 8 valve only.
2. 85C and 87C are trims for PTFE-seat construction.
3. Not for use with Whhisper Trim I with 136.5 mm (5.375 inch) and larger ports.