Single-disc Swing Wafer Check Valve

Single-disc Swing Wafer Check Valve allows unrestricted flow. The valve body, the bonnet, and the disc are the three basic elements that make up a check valve. These elements are all connected to a hinge in some way. The disc slides away from the valve seat to allow flow in one direction. When the flow in the upstream direction is stopped, the disc travels back to its original position to prevent backflow. This valve has overall smooth functionality.

  • Size:DN50-DN600,NPS2-24
  • Pressure:PN5.0-PN15.0

CE Certification

ISO Standards

Warranty Included


Single-disc Swing Wafer Check Valve is unguided in the sense that it either opens or closes entirely; there is no intermediate state. Its single disc and seat combinations are available to meet the requirements of a number of different uses. This valve opens all the way to allow for the greatest possible flow and then closes automatically when the pressure in the system reduces. When there is no longer any flow, the valves are closed entirely to prevent flow in the opposite direction. There is a little amount of turbulence and pressure loss caused by the valve.


  • When water hammer, mounting space, or flow limitation are concerns, this valve is a great option.
  • The disc travels a short distance, reducing the impact force generated by the closure of the valve.
  • When the water hammer pressure is reduced, the disc shuts more rapidly. For a flange-type swing check valve or a flange-type lift check valve, the water hammer pressure is just 0.5 to 0.5 times the rated pressure.
  • Having a low resistance to flow.
  • We support both horizontal and vertical mounting.
  • Super-minimal pressure difference at the opening (cracking).
  • Better durability because of decreased water hammer and impact force.



Size DN50-DN600,NPS2-24
Pressure PN5.0-PN15.0
Supply Ability 10000 Piece/Pieces per Month
Port Wenzhou/shanghai
Payment Terms L/C,D/A,D/P,T/T
  • Design Manafacture: API 6D,BS 1868
  • Face to Face: ANSI B16.10
  • Flange Ends: ANSI B 16.5
  • BW Ends: ASME B16.25
  • Pressure-temperature Rating: ASME B16.34
  • Inspection and Test: API 598
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Yes, we look forward to receiving your order. However, please note our minimum purchase quantity. If you require smaller quantities we will be happy to arrange an individual delivery. We would be delighted to assist you.
Can I get a discount?
This depends on the specific situation, you can call directly to consult.