Quick closing butterfly valve is designed to prevent back flow of steam & condensate into turbine in the event of trip or load rejection. It could shut off pipeline reliably within 0.5 second.
Standard: JB/T 11490、ASME B16.34
Size: DN80~DN3000
Pressure: PN10~PN160
Temperature: soft seal, ≤80℃. Hard seal, ≤425℃.
Connection: flange, butt weld
Body: cast iron, CS, SS
Disc: cast iron, CS, SS
Seat: SS
Stem: SS
Sealing ring: rubber, graphite, metal
Bush: self-lubricating material, SS, copper alloy.
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