What Is Duckbill Check Valve Design Guide And Types?
Duckbill check valve is also named rubber check valve. rubber duckbill valve. which has special structure like duckbill It is an air, gas, liquid, water backflow preventer which has the function of forwarding flow in positive direction while non-return in opposite direction. Rubber duckbill check valve is applicable widely to drainage system, sewer, breast pump and manual respirator.
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