XF Rubber Back Valve

XF Rubber Back Valve,appearance of duck bill shape , 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.

Outstanding Character : br> A)Auto open and close due to water pressure difference , well safe and secure ,no noise , with out need human to operate or maintain and keep up .
B)Foward open ,the resistance is small , starting pressure is small ,the flow rate depend on water pressure .
C) Great tightness ,no leak ,advoid back flow , back presure go up , better performance .
D)Resistance to corossion ,aging ,deformation ,with long using life .
E)Wide range of size , DN 50--DN3000

1)Excellent performance and wide application rang
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)Flanged 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