Scope of application of duckbill valves.

Scope of application.
1 .  Applicable to sewage system duckbill valve can prevent flooding and sewage backflow into sewers and basements to avoid major losses.
2 .  Applicable to the discharge system duckbill valve can prevent the flood backflow into the city surface when the water level rises, sewage treatment plant drainage pumping station.
3 .  Applicable to dike discharge rocky beach discharge, the problems that plague the flapper door are: the blockage of stone garbage makes the flapper door can not be closed or can not be opened, the use of duckbill valve in these areas will solve these problems.
4 .  Applicable to airport, highway drainage duckbill valve is used for airport, highway large area drainage, effectively prevent backflow.
5 .  Applicable to cesspool drainage duckbill valves can prevent sewage from flowing from one water section of the pre-buried pond to another water section. In untreated sewage, the normal operation of the valve will not be affected by, for example, plastic, tree branches or silk fabrics.
6 .  Odor blocking The installation of duckbill valve in the pipeline can stop the spread of odor from sewage or odorous fluids, and can be drained at any time.
7 .  Applicable to sewer discharge in the rainy season to prevent filling from city sewers to city streets.
8 .  Aeration system duckbill valve is ideal for municipal and factory aeration system.
9 .  Applicable to pumping station system duckbill valves are used in large drainage pumping stations to prevent backflow after pump shutdown. The full rubber structure of duckbill valve can prevent the corrosion of seawater and small head loss.