The self-actuating pipe flap valves prevent undesirable backwash into wastewater pipes in the event of backwater or high water levels. They are made entirely from polymer and so are 100% corrosion-free.
The pipe flap valves are available in various sizes from DN 100 to DN 1000. They are suitable for use with faecal-free wastewater in seawater and freshwater environments. Typical installation locations include end pieces in horizontal pipes leading into shafts or outside, leaching and pond systems, and behind cisterns separately connected to rainwater channels or drainage ditches.
In addition to backwater protection, the valves also provide protection against rats, mice, frogs, and other vermin entering the pipe system.
KESSEL also offers Multitube Backwater Valves for exposed drainage pipes, available in nominal sizes DN 250 to DN 500.
