Description
Flapper check valve Cost-Effective Valve Superior Quality Backflow
Prevention Supply Range is From DN**0mm to DN***0mm Low Headloss
and Maintenance Free
Features and Benifits of flap valve
Customized Shape or Other Shape Available
Reliable backflow prevention
Smart design eliminates maintenance Â
Corrosion resistant, will not warp or freeze open or shut
No cracking pressure needed, low head loss, can be completely open
to flood dischargeÂ
Environmentally-friendly
 Â
Specifications
Nominal diameter:Â Â Â DN**0mm to DN***0mm, other
sizes available
Maximum working pressure:Â Â Â 5.0 meter water
Operating temperature:   **0℃ - *0℃
Opening angle   >*0°
Corrosion resistance   Yes
Applicable media   water, river water,
seawater, living water, industrial sewage.
