Water hammer is a common issue with traditional check valves. When this happens, the disc on the valve slams shut, abruptly topping the flow, and allowing the effects of water hammer to ensue.
Pressure surges set up potential for ruptured pipes and components, excessive noise and vibration,and damages to pipe supports and flanges.
Non Slam Check Valve are designed to minimize the water hammer.


Carbon Steel ASTM A216 - WCB or Equivalent
Alloy Steel ASTM A217 - WC6, WC9, C5, C12, C12A or Equivalent
Duplex Stainless Steel ASTM A995 - 1A, 2A, 4A, 5A or Equivalent
Stainless Steel ASTM A351 - CF8, CF8M, CF3, CF3M, CN7M or Equivalent
Special Alloy Steel Inconel 625, 825 or Equivalent
Hastelloy C
Monel or Equivalent

Production Range

  • Pressure Rating: ASME class 150 to class 2,500
  • Service Temperature: Up to +500℃
  • Available Size: NPS 2”~ 64”

Design Standards

  • Basic Standards:API 594, API 6D
  • Face to Face:ASME B16.10

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