Rubber Back Valve

with full rubber structure,duck mouthed appearance and functions or positive flow in and reserve cut off according to thrust analysis and caculation as well as different operation conditions ,it is manufactured with different disign mechanism and different rubber products by special processing .all positive operation.the water flow in from entrance and the valve will be open at weak hydraulic pressure ,the hydraulic pressure is higher,the valve gate will open more greatly and the water flow is greater,at reserve operation ,the valve gate closes naturally and seals tightly cut off valve ;the back pressure is higher ,the valve gate closes more tightly and the seal effect is beter .it is used widely in various drainage exit to prevent from pouring back wards and flowing backwards in city planning,waer conservancy and sewage displsal etc.it is the ideal product to replace flap valve . Pipe rubber back valve,rubber dirt discharge valve ,rubber check valve , rubber slow close valve ,duck bill valve ,pipe back valve .
As professional manufacturer of flexible joint ,patent our own patent : Patent number :ZL200320113496.0

Excellent performance and wide application range :
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 city.
2)Belled XF-T be installed at the exit of drainage pipe
3)Flanged XF-F be installed at the exit end with flange of drainage pipe
4)Mounting plate XF-F be installed on the building at the wate 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 of guout or cement pipe .