Duckbill Check Valve

Main usage

It is used in waterproofing and drainage system, the exit end of pump to promote.

Characteristic

Rubber-lined Flange combined with the valves body��and  Its very convenient for installation .The valve is all-rubber design sedimentation and sticking will not be occurred, any Solid particle are allowed to pass, to reduce the maintenance cost.

Material

Neoprene   Teflon polyethylene   NBR  EPR etc.

Installation method and Measurement

Rubber flange ��the valve body and duck mouth are made as an organic whole��It has pad metal flange��which can naturally connect with metal flange and directly installed in the body of tank��pipes and cofferdam��when installed the connection��the measurement of that completing sealing after the connection fastened ��and don��t damage the flange lip of rubber sewage check valve.