Check Valves

Humes AVK Check valves (also known as reflux, non-return, back pressure and retaining valves) are designed to permit flow in one direction and to prevent it in the reverse direction.  Humes offers a wide range of AVK check valves including ball checks with internal thread and flanges, resilient/metal setaed disc, with/without lever, weight and limit switch, recoil non slam and large diameter.

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  • Swing Check Valves manufatured to AS4794                              
  • Swing Check Valves available in sizes DN80 to DN600 Ball Check Vavles available in sizes DN50 to DN400 
  • Used to protect pumps and pipelines from water column separation


  • Stormwater systems
  • Wastewater systems
  • Irrigation systems