Inner packing:Plastic bags, Outer packing:Cartons and wooden case
DUAL FLAP WAFER CHECK VALVE
Main Features :
DONGSHENG Dual Flap Wafer Check Valve is designed to operate with the minimum of flow restriction.
The twin spring loaded half disc operate with the pipeline flow and reseal back against the rubber disc seating providing a positive shut off against any back flow . The resilient seating prevent a slamming action .
Check Valves offer greater flexibility and low cost in most piping systems and moreover , of its light weight , it is so convenient to install and has smaller face to face dimension than conventional swing check valve .
These valves can be supplied to match the international standards of flange (DIN,ANSI,JIS & BS) .
DongSheng check valves when compared with order traditional isolating valve such as swing check valve offer the following advantages:
Low purchase cost
Non-slam principle of operation
Good flow characteristic and less pressure drop
Suitable for horizontal and vertical up flow
Heating air-conditioning pipe lines High frequency lines Fire extinguishing system Vessel pipelines Iron and steel industry Mineral, oil industry Wood working, pulp and paper industry Textile industry Water and condensate lines
Water , warm water , sea water , air and weak acid