蝴蝶阀过滤池中的水生植物

BUTTERFLY VALVE FOR FILTER TANK IN WATER PLANT Specification Nominal pressure: PN0.25MPa Nominal diameter: DN250-1000MM 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: This series products are for such low pressure working condition as filtering tank in water company and the pressure is 0.25MPa, it can take the place of the other kind of 1.0MPa valves which reduce the project cost.