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A swing check valve consists of a flap or disc which hangs down in the flow path. With flow in the forwards direction, the pressure of the fluid forces the disc to swing upwards, allowing through the valve. Reverse flow will cause the disc to shut against the seat and stop the fluid going back down the pipe. In the absence of flow, the weight of the flap is responsible for the closure of the valve.
The wafer flange clamped butterfly check valve is energy−save product. It is manufactured based on the foreign advanced technology and in accordance with relative international standards. This product is featured by excellent retaining performance, high safety and reliability and low flow resistance. It is suitable for systems in the industries of petrochemical food processing, medicine, textile, paper−making, water supply, drainage, metallurgy, energy, and light industry, ect., used as a check valve in one way.
A: Swing Check Valve
Bolted cover, swing type disc, threaded or welded seat ring