Brief Introduction of Rubber Duckbill Check Valve
Duck mouth check valves made in our company have been constanly receiving reputation not only at home but overseas.
This valve is our special product,and it is used for draining sewage.In such foreign countries as Spain or America,it is usually named as duckmouth-shaped valve.We are continuoully doing our best to make this valve more practical and more perfect.The valve can be matched with straight pipeline,flange pipe,cement pipe.At the same time,they may be widely used on the coast,seasands,reservoirs,and so on in order to dispose the sewage or to dredge the floods .Indeed ,it is environmentally-friendly valve.
The advantage of rubber duckbill valves is specially marked in comparison with traditional flap valve.
1 Open and close automatically in security and reliability according to hydraulic difference without noise and in no need of operator and maintenance.
2 Positive start has little water resistance and start-up pressure and the flow can be adjust naturally according to hydraulic pressure.
3 Reserve cut-off has good seal without leakage to prevent from flowing backward. The back pressure is higher and the effect is better.
4 Anticorrosion, prevent aging, strong applicability and long use life.
5 Wide size scope, nominal diameter of DN50-2400.
