Nuclear check valves are used in million kilowatt grade pressurized water reactor nuclear power unit to avoid the reverse flow and to obtain cut-off and isolation function for protecting system and equipment、 ensuring pipe system operating safety and alleviating accident effect. The valve is designed as safety class 2 and 3、 standard Gr.
2 and 3 and seismic level 1A and 1I. Fargo nuclear check valve prototype has been all of the following type test certified: 2000 hot circle lifetime、hot cycle test、flow interruption capability、reverse flow and end loading, satisfying the various function requirements in operating condition.
Type: Swing, Lift
End Connection: BW, SW, Flange
Nominal Diameter: 400mm
Pressure Range: 17.5Mpa
Working Temperature: 350℃
Body Materials: Carbon Steel, Stainless Steel, Alloy Steel, etc
Bonnet joint double sealed design.
Built-in disc design reduces external leakage.
Disc anti-rotation design ensure sealing location repeatable.
ALL seismic and fatigue analyzed by FEA software.
Passageway optimized by CFD software to minimum the flow resistance.
Previous: Pneumatic Extraction Check Valve