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Pipe flap valves 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

For use as end piece

  Nominal size (DN)LengthWidthMechanical backwater flaps Item no.  
79100 100 120  mm 128  mm 1 79100
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79125 125 136  mm 151  mm 1 79125
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79150 150 142  mm 190  mm 1 79150
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79200 200 170  mm 248  mm 1 79200
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79250 250 220  mm 345  mm 1 79250
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79300 300 225  mm 400  mm 1 79300
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79400 400 295  mm 417  mm 1 79400
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79500
500 320  mm 522  mm 1 79500
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79600
600 345  mm 655  mm 1 79600
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79800
800 523  mm 1,035  mm 1 79800
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791000
1,000 495  mm 1,264  mm 1 791000
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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.. 

Customised solutions