Marine Cast Steel Flanged Check Valve (GB/T586-1999)
GB/T 586-1999
DN65-125；20-125；20-100 2.5 MPa
Automatic backflow prevention for seawater, fuel, lubricating-oil and steam lines. Confirm installation direction and allowable pressure drop.
Compact wafer-check valves for weight- and space-sensitive installations. Confirm face-to-face dimensions and pipeline flange standard.
This category covers lift, swing, suction and wafer check valves for seawater, fuel, steam and general shipboard service. Selection is checked for flow direction, installation orientation, pressure loss and the pipeline function the valve must protect.
Before RFQ, confirm standard scope, IMPA-code data, certificate requirements, and flow-direction boundaries.
The catalog page lists a flanged suction check valve at DN32-250 for oil, seawater and freshwater, with HT200 or ZCuSn16Si4 body options. Pressure class, material combination, installation orientation, tests and certificate scope are confirmed with each RFQ.
This substitution is not automatic; lift and swing check valves cannot be selected by appearance alone. Pipeline direction, service medium, flow velocity, pressure loss, pulsation and maintenance space must be confirmed; installation orientation directly affects sealing and reliable operation.
Provide the standard or model, valve function, DN size, pressure rating, materials, installation orientation, flow direction, service medium and temperature, quantity, certificate requirement and delivery schedule.
No. Installation must follow the valve flow mark, structural type, mounting orientation and pipeline function.