Hinge Flaps

RPM Head Walls are designed to fit all RPM pipe as well as most other plastic and concrete pipes. These head walls are manufactured from lightweight fibre glass, made for us by a local company.

Our hinge flaps:

  • Made from hot dipper galvanised steel construction
  • Have an aluminium disc for light weight corrosion free sealing
  • Work as a one way valve, allowing water to flow out of the pipe
  • Have an optional lever and chain to secure open when necessary