Large diameter rubber duckbill check valve

Large diameter rubber duckbill check valve application

Applied for waterproofing systems, drainage systems and water pump outlet, pumping and fluid aeration system.
Product main features: rubber flange and valve body as a whole. it is extremely easy to install. All-rubber valve body design, does not cause siltation and things stuck happens, reduces maintenance costs, and allow the smoothly through the solid particles. Valve body materials: neoprene, haipulong, butyl rubber and ethylene-propylene rubber eye; flange material: Q235,304,316.
Advantages of check valves

Duckbill valve has low cost,  using righ rubber material and its life time more than metal check valves, also is easy to install, installation is flexible, can be patched.
(1) maintain a high Jet velocity.
(2) to prevent the invasion of seawater and sediment
(3) discharge pipe flush.
(4) under certain conditions, can achieve higher dilution.
(5) no corrosion.