HDPE Flap Valves from Flexseal provide a high strength, low cost solution, preventing backflow through drain or sewerage pipes.

  • Lightweight range of flap valves
  • Standard range stocked and available for quick delivery
  • Bespoke valves can be custom built to customer’s requirements
  • Available – wall, spigot or flange mounted
  • Low cracking heads
  • Easy and quick installation – no need for grout between frame and wall
  • Robust and rigid construction
  • UV stable
  • Fully recyclable
  • Materials are corrosion resistant
  • Little to no maintenance required
  • Manufactured to DIN 19569-4