Qingdao Hyperway International Trade
Ductile cast iron check valves are double flanged, resilient seated. They are widely used to prevent backflow of water by rubber-flap in potable water system or sewage system.
Processing standard: DIN EN 12334
Face to face according to: DIN EN 558-1 series 48
Flange standard: DIN EN 1092-2
Valve body and seat pressure standard: DIN EN 1563
Material standard: KTW and DVGW W270
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