Flap Valves – Fig 5100SG

Wall mounting flap valve for water, sewage and land drainage applications.

Industrial Penstocks manufactures a comprehensive range of Flap Valves. The valves are supplied with either square or rectangular apertures, with single or, as an option, double doors. The Flap valve is designed for the flow of surface water drainage, preventing reverse flow conditions and stopping flood damage.

Size Range

500mm upto 2000mm




Frame, Door, Hinge Brackets, and Hinge Links. Stainless steel to BS970 gr 304/316 is impact-resistant and designed to suit customer pressure specifications.

Seating Faces.   EPDM.

Hinge Pins.  Stainless steel to BS970 gr 304. StSt 316 /phosphor bronze to BS2874 PB102.

Please feel free to contact our dedicated sales team for more information. Call: 01384 458 411

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Technical Specification