Brief Duckbill Check Valve
The Duckbill Series valve allows material to flow through, and then prevents it from returning to its source.
Duckbill Check Valves are a flexible sleeve design made of quality fab-ric-reinforced elastomer materials for maxi-mum resistance to corrosion and wear caused by continuous operation with abrasive slurries, sludge, or effluent. The flexible sleeve provides maximum flow with a mini-mum pressure drop across the valve at all times.
The "duckbill" concept check valve has been in use for over 100 years in waterworks and commonly accepted for use in industrial process piping systems and in waste and storm water or sewer piping systems
