What is the duckbill check valve?

The duckbill check valve (duckbill valve for short) is an integral valve made of elastomer and accurately molded. Duckbill valves are widely used in industry to prevent backflow reliably in low differential pressure working environment.The duckbill valve can allow fluid to pass freely under positive pressure difference, and it can prevent backflow under negative pressure difference.

Advantage: good reverse effect, simple installation, small space occupation, self cleaning

Application：aquariums，purification equipment ，soap dispenser，gasoline tank, oil tank, oil pump.