Non Slam Check Valve

The use of non-slam check valves, which are particularly built for the conditions present here, is recommended. Because these valves do not slam when they shut, there is no sudden increase in pressure when they are used, as their name suggests. A non-slam check valve features an internal spring that works against the pressure of the opening fluid flow. This spring is located inside the disc of the check valve. When there is a significant enough flow of a medium, the spring will begin to compress, which will cause the valve to open. The spring will then begin to push the disc back toward the seating surface in the valve as the flow begins to decrease and eventually stops but before the flow direction changes

  • Size:DN50-DN750
  • Pressure:150LB,300LB,600LB,900LB,1500LB
  • Material:WCB, LCB,LCC, WC6,WC9, C5,C12,C12A, CF8, CF8M, CF3, CF3M, CN7M,Alloy 20,B148,UB6 ,Hastelloy C etc
  • Connection:Flanges,RTJ Flange

CE Certification

ISO Standards

Warranty Included


The non-slam check valve is the most efficient way to get rid of the water hammer to install check valves that operate smoothly and silently on their own. Throughout both the opening and the ending, there was a profound quiet. Because the flow is stopped before the valve is turned around, there is no slamming sound. The seat’s conical form serves to both orient the body correctly and blocks out outside noise. In addition to the employment of non-slam check valves in applications such as these, the chemical processing industry, steam condensate systems, and the power generating sector also make use of these valves.


  • Because the stroke length is shorter, the valve may be closed more quickly, resulting in a reduced amount of water hammer.
  • Incorporating a metal-to-metal seal into a system
  • Excellent dynamic performance with just a little decrease in pressure
  • The spring-loaded structure of the disc enables the installation process to be performed in any orientation.
  • Achieving a Closure in a Record Amount of Time Deflation Rates
  • It does not cause excessively High loss




  • Product name: Non Slam Check Valve
  • Size: DN50-DN750
  • Pressure:150LB,300LB,600LB,900LB,1500LB
  • Material: Cast iron,WCB, ect
  • Connection: Flanges,RTJ Flange



Size DN50-DN750
Pressure 150LB,300LB,600LB,900LB,1500LB
Material WCB, LCB,LCC, WC6,WC9, C5,C12,C12A, CF8, CF8M, CF3, CF3M, CN7M,Alloy 20,B148,UB6 ,Hastelloy C etc
Connection Flanges,RTJ Flange
Supply Ability 10000 Piece/Pieces per Month
Port Wenzhou/shanghai
Payment Terms L/C,D/A,D/P,T/T
  • Design and Manufacture: BS1868,ANSIB16.34
  • Pressure-temperature rating: ASME B16.34
  • Face to face(end to end): MFGS
  • End Connection: 2″-24″ ASME B16.5; 26″ -42″ ASME B16.47; B.W end ASME B16.25
  • Test and inspection: API598,API6
Can we order goods from you directly?
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.