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Val-Matic Swing-Flex® Check Valve
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Val-Matic Swing-Flex® Check Valve


The Swing-Flex® check valve from Val-Matic is an innovative swing check valve designed for superior performance and reliability. With only one moving part and a short 35° disc stroke, the Swing-Flex® provides efficient, non-slam operation. The flexing disc technology minimizes maintenance while maximizing longevity. Available in ductile iron or stainless steel bodies ranging from 2” to 48”, Swing-Flex® check valves are rated to 250 psi and certified to NSF/ANSI 61. They are ideal for water, wastewater, slurry, and abrasive service applications.

The precision-molded, reinforced disc provides reliable sealing and non-slam closure. The disc flexes with memory action to provide tight shutoff without a water hammer. The valve's smooth body contour and domed access cover prevent clogging while allowing full flow. Manufactured to ISO 9001 standards, Swing-Flex® check valves deliver optimized flow and minimal head loss.


  • Short 35° disc stroke reduces water hammer.
  • Flexing disc with steel and nylon reinforcement provides reliable, non-slam closure.
  • 100% flow area for optimal flow and minimal head loss.
  • One-piece precision molded disc with integral O-ring seal.
  • Domed access cover allows full-port access without removing valve.
  • Drop-tight sealing at high and low pressures.
  • Fusion bonded epoxy coating resists corrosion.


  • Pump discharge and suction lines
  • Sewage and slurry pipelines
  • Water treatment plants
  • Irrigation systems
  • Hydroelectric plants
  • Stormwater management


  • Meets AWWA C508 and certified to NSF/ANSI 61 and 372.
  • 1 million cycle tested with zero leakage.
  • Flow tested for optimal head loss values.
  • Built to ISO 9001 certified quality standards.


Val-Matic® Valve & Mfg. Corp. is a leading manufacturer of check valves, quarter turn shut-off valves and air valves for water/wastewater, industrial and building markets. Valve types include Tilted Disc®, Dual Disc®, Swing-Flex®, Surgebuster®, Silent Check Valves, Eccentric Plug Valves, AWWA Butterfly Valves, Air Valves, Foot Valves, VaultSafe® products, Ener-G® AWWA Rubber Seated Ball Valves, Smart Control Systems, and QuadroSphere® Trunnion-Mounted Ball Valves.


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