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 125WCSI Series - PRODUCT DATA BULLETIN
 125WCSI Series - INSTALLATION, OPERATION AND MAINTENANCE MANUAL

Series '125WCSI'

Available in sizes 2" to 24" with a body designed to fit between ANSI 125# and 250# flanges for maximum operating pressures as follows:

PMO: (Maximum Operating Pressure)
2" to 6" 400 psi @ 150 deg. F
250 psi @ 400 deg. F.
8" to 12" 200 psi @ 150 deg. F.
150 psi @ 400 deg. F.

Materials of Construction:

  • Body: Cast Iron
  • Plug: Bronze or 316 Stainless Steel
  • Seat: Bronze or 316 Stainless Steel (Optional soft seat available upon request)
  • Spring: 316 Stainless Steel
Notes:
  • These valves are designed for horizontal and vertical flows.
  • The conical spring design allows the plug greater travel, resulting in better flow characteristics than valves of conventional design.
  • These valves can be machined to accept an optional soft seat (usually Buna-N) for bubble tight shut-off.
Cast Iron Silent Wafer Check Valve
Cast Iron Silent Wafer Check Valve - Dimensions
Unit of Measure
Items Cast Iron Silent Wafer Check Valve
125WCSIBM-2
Cast Iron Silent Wafer Check Valve
Cast Iron Silent Wafer Check Valve
125WCSIBM-2 1/2
Cast Iron Silent Wafer Check Valve
Cast Iron Silent Wafer Check Valve
125WCSIBM-3
Cast Iron Silent Wafer Check Valve
Cast Iron Silent Wafer Check Valve
125WCSIBM-4
Cast Iron Silent Wafer Check Valve
Cast Iron Silent Wafer Check Valve
125WCSIBM-5
Cast Iron Silent Wafer Check Valve
Size N/A 50 mm2 in N/A 65 mm2 1/2 in N/A 80 mm3 in N/A 100 mm4 in N/A 125 mm5 in
A N/A 67 mm2 5/8 in N/A 73 mm2 7/8 in N/A 80 mm3 1/8 in N/A 102 mm4 in N/A 121 mm4 3/4 in
B N/A 108 mm4 1/4 in N/A 127 mm5 in N/A 146 mm5 3/4 in N/A 178 mm7 in N/A 213 mm8 3/8 in
C N/A 51 mm2 in N/A 70 mm2 3/4 in N/A 83 mm3 1/4 in N/A 102 mm4 in N/A 127 mm5 in
D N/A 60 mm2 3/8 in N/A 73 mm2 7/8 in N/A 89 mm3 1/2 in N/A 114 mm4 1/2 in N/A 140 mm5 1/2 in
Flow Coefficient Cv N/A 57 N/A 87 N/A 127 N/A 228 N/A 357
Weight N/A 2.3 kg5 lb N/A 3.6 kg8 lb N/A 4.5 kg10 lb N/A 7.7 kg17 lb N/A 12.3 kg27 lb
Maximum Operating Pressure PMO1 N/A 250 psi at 400 ºF 400 psi at 150 ºF
ANSI Class N/A 125 – 125/250 ANSI
End Connection N/A Wafer type
Valve Type N/A Silent Check
Seat Material  N/A Metal-Bronze
Body Material (1) N/A A126-B Cast Iron
Plug Material (2) N/A B148 C954 Aluminum Bronze or 316 Stainless Steel
Seat Material (3)2 N/A B148 C954 Aluminum Bronze or 316 Stainless Steel
Spring Material (4) N/A 316 Stainless Steel
Bushing Material (5) N/A B148 C954 Aluminum Bronze
Set Screw Material (6) N/A 300 Series Stainless Steel
  • 1 Recommended for liquid service only.
  • 2 Resilient seat materials are available. Please consult factory.