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The EVR duckbill check valve is a one-way, non-return check valve. No additional energy source is required as they use existing line pressure and backpressure to open and close the valve. The Duck- Bill design is engineered such that the valve will always return to a fully closed position enabling a tight seal, even on suspended solids.
WaStop inline check valves have been an industry leader since their inception in 2000. Developed on the same principles that are the foundation of Wapro, WaStop’s ingenious function combines common sense and simplicity, to provide our customers with the best possible protection against flooding, odour control and backflow.