Flapper check valve Cost-Effective Valve Superior Quality Backflow Prevention Supply Range is From DN300mm to DN3000mm Low Headloss and Maintenance Free
Features and Benifits of flap valve
Customized Shape or Other Shape Available
Reliable backflow prevention
Smart design eliminates maintenance
Corrosion resistant, will not warp or freeze open or shut
No cracking pressure needed, low head loss, can be completely open to flood discharge
Environmentally-friendly
Specifications
Nominal diameter: DN300mm to DN3000mm, other sizes available
Maximum working pressure: 5.0 meter water
Operating temperature: -20℃ - 60℃
Opening angle >60°
Corrosion resistance Yes
Applicable media water, river water, seawater, living water, industrial sewage.
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