Средняя кузова серии клапан-бабочка

MEDIUM BODY SERIES BUTTERFLY VALVE Specification Nominal pressure: PN0.25-1.6MPa Nominal diameter: DN250-2000MM Standard: GB, BS, ISO, JIS, DIN, AWWA Suitable medium: water, sea water Suitable temperature: ≤80 degree celsius Mail material: grey cast iron, ductile cast iron, alloy cast iron, steel Sealing material: rubber-stainless steel;coat or plate anticorrosive material on body surface Leakage: GB/T13927(ISO5208) class A Driving type: manual, electricity, pneumatic, hydraulic Features: 1.Smaller and lighter than gate valve. 2.Flexible actuation, quick on-off, it can be used as regulating valve and the best regulating scope is 40°-70°. 3.Reliable sealing, bilateral pressure bearing, invisible leakage.