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Retainless Wafer Type Dual Plate Swing Check Valve

Retainless Wafer Type Dual Plate Swing Check Valve

Check valve belongs to automatic valve category, which is mainly used in one-way flow pipe of medium. Only the medium is allowed to flow in one direction to prevent accidents. Usually, the fluid opens the valve disc under pressure and flows from the inlet side to the outlet side.
Product Details

Retainless Wafer Type Dual Plate Swing Check Valve

       With the improvement of technologies of valve, valve areas continuously expanding, the corresponding valves standard is more and more indispensable. Valve industry has entered a period of innovation, product categories require not only new replace, internal management of enterprises also need to be based on industry standards for further 

It is light in weight, small in volume, easy to install between flanges, and consists of two semicircular springs and plate surfaces inside the valve. The valve plate is closed by spring deformation fixed on the valve body with a pin, and the fluid pressure makes the deformation of the open spring very fast, which can protect the pipe from the damage of the water hammer.


Main Parameter Specification:

Inspection and test:  API598, JB/T9092;

Design and manufacture:  API594, API 6D, JB/TB8937;

Face to face and end to end:  API594, API6D, DIN3202, JB/T8937;

Pressure-temperature rating:  ASME B16.34, DIN2410, GB/T9124, HG20625, SH3406, JB/T74;

Pipe flange: JB/T74-90, JB/T9112-9124, HG20592-20635, SH3406, ASME B16.5, GB/T13402, API605, ASME B16.47.



Payment & Shipment 

Payment :30%T/T with order ,70% T/T before the shipment .

Package :carton case or wooden case .

Shipment :  25-45days after payment.

Shipping: by air ,by train mby sea .

Port :Ningbo,Shanghai .



Part Material 

1BodyWCB/CF8/CF8M/316/304
2SpringInconelx-750
3DiscWCB/cf8/cf8m/316/304
4Flying RingStainless Steel
5Seat RingNBR/EPDM/VITON
6Shaft304/316
7Spring Plate 304/316
8Gasket-1PTFE
9Gasket-2NBR
10Screw304/316



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