Flexible Duckbill Valves
The advantages are specially marked in comparison with traditional flap valve;
- Open and close automatically in security and reliability according to hydraulic difference without noise and in no need of operator and maintenance;
- Positive start has little water resistance and start –up pressure and the flow can be adjusted naturally according to hydraulic pressure.
- Reserve cut-off has good seal without leakage to prevent from flowing backwards. The back pressure is higher and the effect is barrier;
- Anticorrosion, aging resistance, deformation resistance, strong adapt-ability and long use life;
- Wide size scope, nominal diameter of DN50-DN1200.
- Excellent performance ad wide application scope
- Applicable for sewage system
- Applicable for discharge system
- Applicable for dyke discharge
- Applicable for the drainage of airport and freeway
- Applicable for sewer discharge
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