Item Number 125WCSISM-4, Cast Iron Silent Wafer Check Valve On Colton Industries

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.

Unit of Measure

Specifications

Size	N/A 100 mm4 in
A	N/A 102 mm4 in
B	N/A 178 mm7 in
C	N/A 102 mm4 in
D	N/A 114 mm4 1/2 in
Flow Coefficient Cv	N/A 228
Weight	N/A 7.7 kg17 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-Stainless Steel
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.

Specifications

Size

A

B

C

D

Flow Coefficient Cv

Weight

ANSI Class

End Connection

Valve Type

Seat Material

Body Material (1)

Plug Material (2)

Spring Material (4)

Bushing Material (5)

Set Screw Material (6)