WSSCV Series Stainless Steel Check Valve

Brand: Watson McDaniel

The Model WSSCV is an all stainless steel in-line check valve for steam, gas, or liquid service. It provides tight shut-off, minimizes water hammer and also stops recycling of pumps by preventing back flow of liquid. Used in the petrochemical, pulp & paper, textile and food & beverage industries.

The WSSCV all stainless steel check valves will operate much longer and are less problematic than bronze or cast iron check valves.
  • 316 Stainless Steel Body and Internals
  • Low cracking Pressure on spring (1/4 psi) to minimize resistance and maximize flow
  • Available with optional 5 psi cracking pressure (must specify at time of order)
  • Available with NPT, SW, or optional Flanged connections
  • Spring made from Inconel®-X-750 to handle extreme temperature as well as corrosive applications
  • Body is seam welded to eliminate O-rings or gasket seals which can be affected by high temperature steam or hot condensate
  • Spring assisted closing of check valve to minimize noise and wear


Enclosure, Body Material

  • 316 Stainless Steel

NPT Connection

  • 1” NPT Female
  • 1/2” NPT Female
  • 1-1/2” NPT Female
  • 1-1/4” NPT Female
  • 2” NPT Female
  • 3” NPT Female
  • 3/4” NPT Female

Welded Connection

  • 1” Socket Weld End
  • 1/2” Socket Weld End
  • 1-1/2” Socket Weld End
  • 1-1/4” Socket Weld End
  • 2” Socket Weld End
  • 3” Socket Weld End
  • 3/4” Socket Weld End

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