Duckbill Check Valve is a reliable and cost effective flow control solution, a flexible sleeve design made of quality fabric-reinforced elastomer materials for maximum resistance to corrosion and wear caused by continuous operation with abrasive slurries, sludge, or effluent.  The flexible sleeve provides maximum flow with a minimum pressure drop across the valve at all times. 

Featured with Integral, metal-backed, rubber flange for attaching directly to flanged-end connections from tank or head wall.  ZGV offers a variety of elastomers allow these Duckbill Check valves to be used with many different fluids