Wapro AB

WaStop - The ingenious inline check valve animation Video

The patented Wastop® inline check valve has been the innovator and industry leader since its inception in 2002.

Wastop excels at preventing backflow, flooding, and sewage odor spread in pipe networks. It can be inserted into almost any existing pipe. Unlike any other check valve available today, Wastop® can be mounted horizontally, vertically, on an inlet, outlet, in a chamber, or utilizing flanges. Installation is a breeze!

For over 8 years Wastop has been leading with the lowest headloss in the industry.The secret to Wastop®'s effectiveness is its specialized Memory Membrane, inserted inside either stainless steel or pvc pipes depending on the application. The Memory Membrane is constructed of a specially formulated blend of elastomer which gives it exceptional shape retention and chemical resistance. This ensures Wastop® always opens when needed, but then immediately seals to prevent backflow.

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