H48y h48h structural characteristics of air exhaust check valve

1, the valve by the check valve and the recirculation bypass control valve and throttle device.

2, the valve with the bypass valve to work, can prevent the high pressure water hammer damage to the water supply system to maintain the safe operation of the system.

3, the main valve with the pipe flow or pressure change and move, with the media pressure and the spring force to close the main valve port, then drive the bypass valve open, automatically maintain the minimum allowable pump flow. When the main valve is fully open, the bypass valve is closed.

4, the spool with a special flow structure design, with accurate control of the flow function, in the case of high pressure difference with cavitation wear resistance and not easy to produce noise and vibration characteristics.

5, the valve sealing surface surfacing cobalt based alloy, wear resistance, erosion resistance, corrosion resistance, reliable sealing, long service life.

6, maintenance and repair convenient, fast

7, the valve is suitable for vertical installation.

H48y h48h working principle of air exhaust check valve

Open the outlet valve, pump start, the water to reach a certain pressure, the main valve in the role of water pressure is pushed away from the main seat, open the main valve port, the water flow out. At the same time as the movement of the main valve, drive the connecting rod to swing, toggle emptying valve, the valve closed air recirculation outlet, closed cycle bypass valve. When the water flow is reduced, the role of the main valve in the main valve spring force is pushed to the main valve seat, the valve closing and emptying valve drives the connecting rod through the open door, to maintain the minimum allowed recirculation pump flow. When the pump is stopped, the water pressure is lost, the main valve automatically closes the main valve port channel to prevent the high pressure water hammer damage to the water supply system.

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