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ECO-FLAP® B flap valve is designed for the protection of residential areas from back-flow flooding through drainage pipes. The flap valve is suited mainly for houses located near streams, rivers, waterways or seawater. Available in nominal diameter 100, 150 and 200, the straight flap valve consists of : - a body and flap in glassfibre reinforced Polyamide - a hinge in stainless steel EN10088-2 Grade 1.4401 (316) - a lip and flange seal in EPDM, in accordance with EN681-1 grade WC - an ISO PN 10 flange ECO-FLAP® B can withstand a back pressure up to 1 bar, and it has a good resistance to corrosion and mechanical impact and stress. Light , compact and delivered with fixing bolts, ECO-FLAP® B is easy to install on flat wall surfaces.
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