rubber, duckbill-shaped check valve，Rubber sewage check valve，Duckbill-shaped rubber check valve
Rubber sewage check valve - duckbill shape,Used in urban sewage pipeline systems to prevent backflow of water.
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.
