DUAL FLAP WAFER CHECK VALVE   

Description:

Cast Iron Wafer Check Valves are used in commercial and industrial HVAC applications to prevent water hammer and reverse fluid flow in water lines. They feature a cast iron body with aluminum-bronze disc plates, EPDM seat, PTFE bearings, stainless steel hinge and stop pins, steel plug and eye bolt, and stainless steel springs. Maximum Pressure: 200psi (13.8 bar) CWP (non-shock).

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

Compact design

Non-slam principle of operation

Light weight

Easy installation

Good flow characteristic and less pressure drop

Suitable for horizontal and vertical up flow

Typical Applications:

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

Applicable fluids:

Water , warm water , sea water , air and weak acid