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Pipe flap valves / frog flap made from polymer

The dependable solution at the end of the pipe.

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.

Advantages  Article overview

Area of use for pipe flap valves

Pipe flap valves are used in wastewater without sewage, for example in seawater and freshwater environments. Here they serve as a sealing piece in horizontal pipes leading into chambers or outdoors.

Area of use for the Multitube backwater valve

The Multitube backwater valve is suitable for use in leaching and pond systems and behind cisterns that are separately connected to a rainwater channel or that lead to a drainage ditch. It provides not only reliable protection against backwater, but also provides additional protection against rats, mice, frogs and vermin.

Pipe flap valve

  Nominal size (DN) Item no.  
79100 100 79100
79125 125 79125
79150 150 79150
79200 200 79200
79250 250 79250
79300 300 79300
79400 400 79400
79500 500 79500
79600 600 79600
79800 800 79800
791000 1,000 791000

Not found the right product?

In addition to our standardbackwater valves, we develop individual solutions for special requirements – in terms of form, function and dimensioning – at the customer's request.. 

Individual solutions