
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.

Simply radon-proof
Radiation protection
The radioactive noble gas radon is a natural element that is present virtually everywhere in our earth's crust. If it accumulates in a high concentration within enclosed spaces, it can be hazardous to humans: Radon is considered an environmental risk factor for lung cancer. The Pumpfix F for floor slab installation helps to prevent this health hazard from entering buildings. The backwater valve has been tested and certified as radon-proof.
Pumpfix F backwater pumping station
Floor slab installation
Type of cover | Nominal size (DN) | Length | Width | Item no. | ||
---|---|---|---|---|---|---|
24000S![]() | Cover plate with slotted cover | 590 mm | 590 mm | 24000S | Show | |
24100S![]() | Cover plate with slotted cover | 100 | 642 mm | 590 mm | 24100S | Show |
24125S![]() | Cover plate with slotted cover | 125 | 645 mm | 590 mm | 24125S | Show |
24150S![]() | Cover plate with slotted cover | 150 | 656 mm | 590 mm | 24150S | Show |
24200S![]() | Cover plate with slotted cover | 200 | 720 mm | 590 mm | 24200S | Show |
Installation in an exposed drainage pipe
Shell and Technology Kits
Type of cover | Installation situation | Item no. | ||
---|---|---|---|---|
24000-RBK | Protective cover | exposed drainage pipe | 24000-RBK | Show |
24000S-RBK | Cover plate with slotted cover | floor slab installation | 24000S-RBK | Show |
24000X-RBK | tileable cover plate | floor slab installation | 24000X-RBK | Show |

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..