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Silent Check Valves
Cast Iron - Wafer

Type CW125ISC - Cast Iron Flat Face
Operating Pressures and Temperatures
Service
Size
psi
Temp
Liquid
2" - 12"
200
180°F


Ordering Information

Example: Include Full Description
Size (Prefix)
Model #
0400
CW125ISC

4", Flat Face Wafer Check Valve Silent, Stainless Steel Plug
Consult factory for optional construction materials and installation instructions. Resilient seating of BUNA-N or VITON available for 4” size and larger.


Sure Flow Wafer Check Valves are designed to close before the pump stops completely. This revents flow reversal which eliminates water hammer and system surges associated with valve closure.
  • Quiet Operation
  • Guided Discs
  • Vertical or Horizontal Installation
  • Sizes 2" thru 12 "
Service Applications
  • Municipal Water Systems
  • Industrial Class HVAC - Liquid Service
  • Industrial Piping Systems
  • Irrigation Systems
Construction
No
Name
Material
1
Cast Body A126 Class B
2
Plug A351 Gr. CF8M
3
Spring Stainless Steel
4
Seat A351 Gr. CF8M
5
Bushing Stainless Steel
6
Screw Stainless Steel

Dimensional Data
Size
Model
A
B
CV
Shipping Weight (lbs)
2
0200CW125ISC
2 5/8
4
40
7
2 1/2
0250CW125ISC
2 7/8
4 3/4
60
9
3
0300CW125ISC
3 1/8
5 1/4
85
15
4
0400CW125ISC
4
6 3/4
150
25
5
0500CW125ISC
4 5/8
7 5/8
230
32
6
0600CW125ISC
5 1/2
8 5/8
340
56
8
0800CW125ISC
6 1/2
10 3/4
600
100
10
1000CW125ISC
8 1/4
13 1/8
900
140
12
1200CW125ISC*
11 1/4
19
1850
370*
* Special full lug pattern
We recommend that the valves be installed 7 to 10 pipe lengths away from
the turbulence.


Notes

Manufacturer reserves the right to modify dimensions, materials, or design. Contact factory for certification.
The Flow Coefficient (Cv) is the number of gallons per minute of water flowing through a given size restriction at a pressure drop of one psi. To obtain the Cv factor for a given size check valve refer to table above.






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