Rubber Discharge Check Valve

whole rubber structure ,with duch mouth shape ,with character of "Forward flow, reverse Check" new type water drainage product.Depend on pressure analysis and stress calculatioin,for different conditions,use different design mechanism,use different rubber foumulations,according to special technology to produce.Forward working ,the water flow form the inlet,small water pressure could open the valve ,the larger of the water pressure ,the greater the valve opening.reverse work,the valve close auto,sealed stop,the back pressure is higher,valve port is more tightly.sealing better ,it is widely used for municipal ,irrigation ,sewage and other effuent discharge to prevent back flow,back is the ideal replacement to door. rubbre dirt discharge back valve ,rubber back valve ,micro close back valve ,duck bill valve ,pipe back valve .
As being professional manufacturer of producing rubber dirt discharge back valve , we have patent product :Patent number :ZL200320113496.0

Outstanding advantage
A)Open and close automatically in security and reliablity according to hydraulic difference without noise and in no need of operator and maintenance.
B)Positive start has little water resistance and start up pressure and the flow can be adjusted naturally according to hydraulic presure .
C)Reserve cut offer ahs good seal without leakage to prevent from flowing back wards,the back pressure is higher and the effect is better.
D)Anticorrosion,agingresistance,deformationresistance,strong adaptability and long use life .
E)Wide size scope .nominal diameter of DN50--3000

1) Excellent performance and wide application range
2) Applicable for sewage system
3) Applicable for drainage
4) Applicable for dyke discharge
5) Applicable for diainage of airport ,high way
6) Applicable for drainage
7) Applicable for drainage
8) Odor barrier

1) Mosaic XF-X be installed in the pipe of rain and sewage in cities
2) Belled XF-T be installed at the exit of drainage pipe
3) langed XF-F be installed on the building at the water exit end .
4) Mounting plate XF-F be installed on the building at the water exit end
5) Build in XF-F be installed at the exit end of rain and sewage system in city
6) Grout or cement pipe XF-T be installed at the end