• Extremely low headloss
  • Durable 100% elastomer construction
  • Easily installed in any type of pipe
  • No menchanical parts
  • 4″ (100 mm) – 72″ (1800 mm) size
  • 25  year life expectancy
  • Operates on differential pressure
  • Virtually maintenance-free
  • Self-draining
  • Less than 1″ of head pressure cracks open valve
  • Eliminates standing water
  • Silent, non-slamming
  • Simple installation
  • Extensive independent hydraulic testing
  • Opens to near full pipe diameter

Materials of Construction

  • Expansion Clamps:
    304 Stainless Steel (Standard)
    316 Stainless Steel
    Special Alloys Available


Patented by Red Valve Company, the CheckMate® Inline Check Valve is ideal for backflow prevention and odor mitigation. In outfalls, stormwater, CSO and SSO applications, the CheckMate’s® custom-engineered, all-rubber unibody design eliminates costly backflow from oceans, rivers and interceptors. CheckMate® Valves are readily available in 4″ to 72″ sizes. The CheckMate® is built to suit all your site specific and flow needs.