The KWT flap valve prevents your (waste)water from flowing back. With the application of light weight materials, we keep te opening pressure low en reliable.
For pumpapplications, we have special designed pumpvalves, these have a more robust design.

Non-return flap valves

ROwat-MwStop® Inline non-return valve

Protect your property from the dangers of flooding, heavy rainfall and the resulting overloading of the wastewater pipework system. Easy and quick installation, no need for special equipment to install.

KRK-RH-series square non-return-valves

KWT non-return-valves are used to prevent backflow in sewer systems, are light weight, easy to install and are very responsive and reliable. Standard 5 MwC backpressure

KWT EN Non return pumpvalve HDPE KPK R F DN600 DN1200 OPEN

KPK series non-return pumpvalves

KWT pump non-return valves prevent backflow trough the pumps when disabled. KWT pump valves are made from durable HDPE (density 0,96); the floating or closing balance is leveled trough extra weight, therefor a low opening pressure is made possible.

KRK series non-return flap valve for round openings

The KWT flap valve prevents your (waste)water from flowing back. With the application of light weight materials, we keep te opening pressure low.