Henan Liwei Pipeline Equipment Co., Ltd.
Main products:Rubber Joint,Rubber Lined Pipe,Compensator,Metal Expansion Joint,Bellows
Contact Us
  • Contact Person : Ms. Lee Jessie
  • Company Name : Henan Liwei Pipeline Equipment Co., Ltd.
  • Tel : 0086-371-68938312
  • Fax : 0086-371-68929024
  • Address : Henan,Zhenghzou,NO. 68 Mengjin Road, Shangjie District
  • Country/Region : China
  • Zip : 450041

flexible rubber duckbill check valves

flexible rubber duckbill check valves
Product Detailed
flexible rubber duckbill check valves 1.Size:DN50-DN3000 2.Tpye:slip,flange,double flange 3.Materail:NR.CR 4.High quality flange flexible rubber duckbill check valves

flange 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 Smell separation

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

You can se design picture. 




The size. 

Notes: if other satandard requirement or special flange need particularly customer made , please provide written drawing , standard , data , we can make customer-made for you .


Product used


flexible rubber duckbill check valves

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