Nuclear Ball Valve

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Nuclear ball valves are used in million kilowatt grade pressurized water reactor nuclear power unit to on-off the pipe system for 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. Neway nuclear ball valve prototype has been all of the following type test certified: 2000 hot circle lifetime、hot cycle test、flow interruption capability、seismic and end loading, satisfying the various function requirements in operating condition.


Design Feature   Product Range
One-piece body design with excellent anti pipe stress capability
Soft seat materials pass the test and verification of all nuclear operating conditions
Double sealing design for the bonnet joint to avoid external leakage 
Quick on-line maintenance 
ALL seismic and fatigue analyzed by FEA software

DN ≤150mm
Temperature ≤200℃
Design Pressure ≤6.4MPa
Sealing Type Soft Seal、Metal-to-metal Seal
Operation Manual、Pneumatic、Electric
End Connection SW、BW 、Flange
Body Materials Stainless Steel、Carbon Steel、Alloy Steel
Type Top-entry



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