Non Return Check Valve

详情

Wastop excels at preventing backflow, flooding, and sewage odor spread in pipe networks.The Wastop valve 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!
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 polyurethane which gives it exceptional shape retention and chemical resistance. This ensures Wastop® always opens when needed, but then immediately seals to prevent backflow. For over 8 years Wastop has been leading with the lowest headloss in the industry.
How it works:
Flow in the right direction causes a pressure build- up against the membrane to open just enough to allow the liquid to flow unhindered.If the flow is reversed the membrane fills with water or gas and acts as a stopper, blocking all back flow.

WaStop can be manufactured using different qualities of rubber and materials appropriate for the specific usage. For example, if the check valve is to be used to stop odours, a softer rubber is used for easier opening and closing.