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Help CenterWAFER TYPE DUAL PLATE CHECK VALVES
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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
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
NO. |
Parts |
MATERIAL |
1 |
Body |
Cast iron GG25 / Stainless Steel |
2 |
Disc |
AISI 316 / chrome coated GGG40 |
3 |
Resilient seat |
EPDM |
4 |
Hinge pin |
AISI 316 |
5 |
Spring |
AISI 304 |
6 |
Retainer screw |
Carbon steel |
7 |
Disc bearing |
Teflon |
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