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Staufix FKA backwater valve

The reliable solution for wastewater with sewage.

Particularly reliable motor operation: In contrast to conventional backwater valves, the Staufix FKA achieves the sealing with the help of a motor. This means that it is also suitable for wastewater containing sewage – not only for showers, washbasins and washing machines, but also for toilets.

Staufix FKA is available in two versions – for installation in an exposed drainage pipe and for floor slab installation, where you can choose between a black cover or tileable cover.

Advantages  Article overview

How it works

During normal operations, both flaps are open so that all the wastewater can drain away fully. In the event of backwater from the sewer, the valve is locked by a motor and then opened again automatically afterwards.

Normal operation

Drainage through a natural slope.

In the event of backwater

Closed flap prevents water ingress

Installation kit for the floor slab

The backwater valve is available for floor slab installation and can also be installed in waterproof concrete by using an extension piece with central flange and an elastomer waterproofing membrane. The integrated drainage function ensures that any surface water that arises, for example due to a pipe break, will be pumped into the sewer despite there being backwater.

Self-diagnosis system

The system has a plug-in ready Comfort control unit with the SDS self-diagnosis system, a display for showing the operating status and maintenance information as well as a connection option for centralised control systems. It can be connected without the need for an electrician.

Staufix FKA

Installation situation: exposed drainage pipe

Nominal size (DN) Type of cover Socket version Length Width Item no.
84100 100 Protective cover including spigot and socket 642  MMT 350  MMT 84100
84125 125 Protective cover including spigot and socket 645  MMT 350  MMT 84125
84150 150 Protective cover including spigot and socket 656  MMT 350  MMT 84150
84200 200 Protective cover including spigot and socket 720  MMT 350  MMT 84200

Installation situation: floor slab installation

Nominal size (DN) Type of cover Socket version Length Width Item no.
84100S 100 Cover plate including spigot and socket 642  MMT 590  MMT 84100S
84100X 100 tileable cover plate including spigot and socket 642  MMT 590  MMT 84100X
84125S 125 Cover plate including spigot and socket 645  MMT 590  MMT 84125S
84125X 125 tileable cover plate including spigot and socket 645  MMT 590  MMT 84125X
84150S 150 Cover plate including spigot and socket 656  MMT 590  MMT 84150S
84150X 150 tileable cover plate including spigot and socket 656  MMT 590  MMT 84150X
84200S 200 Cover plate including spigot and socket 720  MMT 590  MMT 84200S
84200X 200 tileable cover plate including spigot and socket 720  MMT 590  MMT 84200X

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