Flap Valve (110 and 160mm)
Flap Valves are innovative devices used to prevent flooding caused by the back flow of storm water and sewage. Backflow can be caused by intense rain, thaw or floods. The valves prevent backflow into residential and commercial premises via the drain systems, toilets or sewers.
Flap valves can be installed at the end of horizontal sewage pipes entering chambers and cesspits, or on drainage pipes leading storm water to soakaways or rivers.
Material : Polypropylene, with stainless steel valve plate and rubber seals
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