PVC non-return valve Type 561

The GF non-return valve Type 561 is spring-loaded with cone or ball and rubber seals. Thanks to its new design, this high-quality valve now has an improved performance. The valve can be disassembled and has double
guides. With proper use, this non-return valve offers a lasting leak-free connection. Type 561 are available in FPM and EPDM versions.



  • Low resistance
  • For radial installation and removal
  • Vibration-free even at high flow velocities
  • Compact installation length


  • Chemical process industry
  • Water treatment
  • Cooling
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