Althon flap valves and flap gates prevent flooding and stop water back-flowing up pipework connecting into ponds, ditches, swales, rivers and marine or tidal environments

Althon flap valves and flap gates prevent flooding and stop water back-flowing up pipework connecting into ponds, ditches, swales, rivers and marine or tidal environments

Flap valves and flap gates are a type of non-return valve (NRV) used to prevent flooding and to stop water back-flowing up pipework connecting into ponds, ditches, swales, rivers and marine or tidal environments.

What type do you offer?

Our range of flap valves and flap gates includes wall-mounted, tidal, flange-mounted, push-fit and pipe-mounted. As standard our HDPE flap valves have a 50-year design life. Althon HDPE flap valves can be manufactured to suit site-specific installation requirements and operating water pressures.

Can I have a flap valve factory-fitted to an Althon headwall?                 

Yes. Althon flap valves can be factory-fitted to our precast concrete headwalls and chambers. For installation on site by others we supply a EPDM seal, stainless steel fixings and chemical anchors.