ANSI Swing Check Valve

Size: DN40-DN400

Structure: Check

Pressure: 125PSI、150PSI

Material: Cast Iron or Ductile Iron

Temperature:  ≤200℃

Media: Water

Power: Manual

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Check valves are "automatic" valves that open with forward flow and close with reverse flow The pressure of the fluid passing through a system opens the valve, while any reversal of flow will close the valve Exact operation will vary depending on the type of check valve mechanism Most common types of check valves are swing, lift (piston and ball), butterfly, stop and tilting-disk

Main Parts Material    
No. Parts Material
1 Body Cast Iron or Ductile Iron
2 Bonnet Cast Iron or Ductile Iron
3 Seat Ring Bronze/Stainless Steel
4 Disc Cast Iron or Ductile Iron
5 Bolt Cast Iron or Ductile Iron
6 Nut Carbon Steel
7 Pin Stainless Steel
8 Drain Plug Stainless Steel
DN 40 50 65 80 100 125 150 200 250 300 400
1.5" 2" 2.5" 3" 4" 5" 6" 8" 10" 12" 16"
L 165 203 216 241 292 330 356 495 622 698 914
H 101 102 114 139 152 170 203 246 292 330 405
D 127 152 178 191 229 254 279 343 406 483 597
Technology Standard

Standard Test
Body Test:1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.

Seat Test:1.1 times the working pressure with water.

Function/Operation Test:At the time of final inspection,each valve and its actuator (Flow-Control Lever/ Gear/Pneumatic Actuator),under goes a complete operating test (Open/Close).This test carried out without pressure and at ambient temperature.It ensures the correct operation of the valve/actuator assembly with accessories such as solenoid valve,limit switches,air filter regulator etc.

Special Test:On request,any other test can be carried out according to special instruction by client.


1.Water Treatment Plant
3.Drilling Rigs
4. Heating & Air Conditioning
5.Paper Industry
6.Chemical Industry
7.Gas Plant
8.Pneumatic Conveyors
9.Sugar Industry
10.Waste Effluent Treatment Plant
11.Cooling Water Circulation
12.Compressed Air


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