Data Sheet

EW Valve
D100023X012
Product Bulletin
51.1:EW
August 2012
20
Table 17. Metal Trim Part Combinations for Fisher EWD, EWS, and EWT Valves with Whisper Trim III Cages
(1, 3)
Trim
Designation
Valve Plug Cage
Cage
Retainer
Baffle
(for Level
D3 Cage
Only)
Disk Seat and
Retainer for
PTFE-Seat
Construction
Seat Ring
for Metal-Seat
Construction
301 (standard for
all valve materials
except CF8M [316 SST])
S17400 (17-4PH SST)
heat treated
S41600 (416 SST)
heat treated
WCC/A105
(NACE
(3)
with ENC)
Steel ---
S41600 (416 SST)
heat treated
301C
(5)
S17400 (17-4PH SST)
heat treated
S41600 (416 SST)
heat treated
WCC/A105
(NACE with ENC)
Steel
S31600
(316 SST)
---
304
S31600 with seat and
guide hard-faced with
CoCr-A (Alloy 6)
S41600 heat
treated
WCC/A105
(NACE with ENC)
Steel ---
S31600 with seat
hard-faced with
CoCr-A
312 (for level D NACE)
S31600 with seat and
guide hard-faced with
CoCr-A
S31600 with
electroless nickel
coating (ENC)
S31600 with
electroless nickel
coating (ENC)
S31600 ---
S31600 with seat
hard-faced with
CoCr-A
313 (NACE compatible)
(2)
S31600 with seat and
guide hard-faced with
CoCr-A
S31600 with
electroless nickel
coating (ENC)
WCC/A105
(NACE with ENC)
Steel ---
S31600 with seat
hard-faced with
CoCr-A
313C (NACE
compatible)
(2, 5)
S31600 with seat and
guide hard-faced with
CoCr-A
S31600 with
electroless nickel
coating (ENC)
WCC/A105
(NACE with ENC)
Steel S31600 ---
315
(4)
S31600 with seat and
guide hard-faced with
CoCr-A
S31600 Cr Ct S31600 Cr Ct S31600 ---
S31600 with seat
hard-faced with
CoCr-A
317
S31600 with seat and
guide hard-faced with
CoCr-A
WC9/Nitride WC9/Nitride Steel --- S41600
318
(4)
S31600 with seat and
guide hard-faced with
CoCr-A
WC9/Nitride WC9/Nitride WC9 ---
S31600 with seat
hard-faced with
CoCr-A
1. For NPS 8x6, 10x6, or 12x6 valves only. (NPS 10x6 has a valve outlet area identical to the NPS 8x6.)
2. Level D1 and D3 cages cannot be certified to NACE. Use 316/ENC cage retainer instead (trim 312).
3. Unless otherwise noted, all NACE references are to NACE MR0175-2002.
4. Not available for EWT constructions.
5. Available for EWT constructions only.