general package is carton case , but we can accept your requirement if possible.
Within 15 days after received the payment
joint valves , rubber check valve , joint valve
flexible duckbill rubber check valves made is in our company have been constantly receiving reputation not only at home but overseas.
This valve is our special product, and it is used for draining sewage. We are continuously doing our best to make this valve more practical and more perfect .The valve can be matched with straight pipe ,flange pipe ,cement pipe .
Rubber Duckbill Check Valve characteristics
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-DN3000.
Applications cope of Rubber Duckbill Check Valve
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
Applicable for swage lagoon dis-charge
Installation structure type
Belled XF-T be installed at the exit of drainage pipe
Flanged XF-T be installed at the exit end with flange of drainage pipe
Mounting plate XF-F be installed on the building at the water exit end.
Build-in XF-F be installed at the exit end of rain and sewage system in cities
Grout or cement pipe XF-T be installed at the end of grout or cement pipe
Basic sizes of slip on duckbill valve and flange duckbill valve we can supply to you .