Fisher EWS Series Instruction Manual page 36

Instruction Manual
Form 2376
EW Valve
March 2007
FLOW DIRECTION
STD TRIM
WHISPER TRIM
CAVITROL TRIM
VIEW A VIEW A
FLOW UP FLOW DOWN
CORRECT SPRING LOADED SEAL
43A8590-B/IL
43A8590-B/IL
RING ORIENTATION
22 TO 136.5 mm (1.875 TO 5.375 INCH)
PORT DIAMETERS
43A8592-B/IL
NPS 4x2 THROUGH 12x6 VALVE
WITH STANDARD CAGE AND METAL SEAT
178 mm (7 INCH) AND 203 mm (8 INCH)
PORT DIAMETER
DETAILS OF VALVE PLUG WITH
SPRING LOADED SEAL RING
A2069-2/IL
55A8288-B/IL
43A8590-B/IL
DETAIL OF PTFE SEAT AND VALVE PLUG NPS 12x8 VALVE
WITH 2 PIECE SEAL RING WITH STANDARD CAGE
APPLY LUB
Figure 24. Typical Design EWT Valve Assemblies
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