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Blowdown rubber duckbill check valve The flanged duckbill valve is made of rubber flange, valve body and duckbill, and has a gasket metal flange,
which can be naturally connected with the metal flange and installed directly on the tank, pipeline and cofferdam. When installing the connection,
the flange corresponds to the size of the connecting flange, and waterproof glue should be added between the flange and the connecting
flange according to the specific situation to ensure that the connection is absolutely sealed after fastening, and it is also necessary
to pay attention not to damage the flange lip of the rubber blowdown check valve.
The duckbill valve can prevent floods and sewage from flowing into the sewers and basements of the streets, avoiding major losses,
and preventing the flood from flowing into the sewage treatment plant and drainage pumping station when the water level rises;
Prevents the spread of the odor of sewage or odorous fluids, and can be drained at any time; In the rainy season,
it can prevent urban inland river flooding from sewers to the streets; The quality is better than that of the door,
and some defects such as the poor closure of the door are overcome.
Rubber duckbill check valve
