supply DN50mm~3000mm rubber check valves

rubber check valves 1,ISO9001 and ISO14001 2,DN25mm~5000mm 3,Material:rubber,steel 4,12 years OEM manufacturer experience

rubber check valves,flexible check valve,rubber duckbill valve 

1)Basic infromation:

Manufactured with an integral reinforced flexible sleeve end complete with heavy-duty clamps, the ZHW series can be easily attached directly over the pipe end. It is available in standard sizes up to 96 inches but we can also supply any valve size to meet your exact needs.The end of the valve that attaches to the pipe is a flexible rubber sleeve with multiple plies of reinforcing cord. In addition to steel pipe, the ZHW series can be easily adapted to plastic, concrete, special dimension conduits or channels and corrugated culverts. The inside diameter of the sleeve is sized to allow easy installation over the pipe end. Clamping rings are available in stainless steel only. Depending on the size and application, these may be worm gear type, toggle bolt band type or rolled flat-bar with bolted joints. Larger valves with flat-bar clamps are provided with extra holes in the bar through which pins should be inserted through the pipe wall to help keep the valve in place. Larger diameter valves are supplied with a lifting clevis to assist the installation of the valve. The same clevis can be used to support the valve and water weight when in use.

2)Compared with traditional flat valves,it owns obvious advantages:

1, It will start and close automatically according to the differential water pressure,safe,reliable,noiseless,no manual operation or maintenance

2, There is smaller resistence in forward start,small pressure to start,in addition,the flux can be adjusted automatically according to the water pressure.

3, There is sound seal for back stop,no leakage,back flow prevention,the higher the back pressure is ,the better the effect is.

4, Corrosion protection,aging protection,no deformation,high adaption and long service life

5, Wide size,norminal size:DN50~DN1200mm

3)Dimension

4)application figure

5)Applicable Scope:

Applicable Scope:
1:Sewage systems	7: Stormwater outfall
2:Drainage systems	8: Flood control systems
3:Drainage from dams	9: Pumping stations / wet wells
4:Drainages in airports and highways	10: CSO / SSO / Effluent discharge
5:Drainages in sewers	11: Submerged outfall diffuser nozzles
6:Drainage from sewage reservoirs	12:Coarse bubble air diffusers     Sparging nozzles

6)Applicable figure:

rubber check valves,flexible check valve,rubber duckbill valve 

supply DN50mm~3000mm rubber check valves