Althon manufacture and distribute flap valves in HDPE, cast iron and stainless steel. Flap valves 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.
Our range of flap valves includes wall mounted flap valves, tidal flap valves, flange mounted flap valves as well as push fit and pipe mounted flap valves. 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.
We are able to design and manufacture bespoke flap valves for square, rectangular or elliptical openings or provide additionally reinforced ballast flap valves for when the valve is subject to wave action.
Althon flap valves can be factory fitted to our precast concrete headwalls and chambers. For installation on site we supply with our flap valves an EPDM seal, stainless steel fixings and chemical anchors
If you require any assistance or more information please contact us by phone on 01603 488700 or by email firstname.lastname@example.org