For use at the outlet of a drainage system as a backflow preventer and in flood protection. When the water level rises, backflow is prevented by automatic closing of the cover. Different cover variants allow use for a wide range of requirements. With circular or rectangular opening.
Individual sizes are available on request.
Please contact our customer service via the contact form.
Each flap cover is available with different cover designs
Flap cover including factory certificate according to DIN EN 10204, 2.1, with indication of the leakage rate according to DIN 19569, part 4
All welded stainless steel parts from our own pickling plant
Center-mounted flap for three-way sealing applications in channels and flumes.
Soft-seated relief flap as backflow preventer - for drainage and flood protection