The control valve of the multifunctional water pump is controlled by a regulating valve. By setting the opening of the regulating valve, it is convenient to realize the required control parameters. The multifunctional water pump control valve is easy to operate. The valve automatically completes the control function in sequence with the opening and stopping of the water pump.
The working principle of the multifunctional water pump control valve:
1. Before the water pump starts, the pressure at the outlet end of the valve acts on the main valve plate, the valve is in the closed position, and the upper cavity of the diaphragm controller is connected to the pressure water, and the lower cavity is connected to the inlet end of the valve. Low pressure is connected.
2. After the water pump is started, the valve inlet pressure gradually rises, and the pressure water slowly enters the lower cavity of the diaphragm controller through the connecting pipe at the valve inlet end to realize the slow opening of the main valve plate, and the opening speed can be adjusted by the control valve.
3. When the water pump stops, the pressure at the valve inlet decreases. When the flow is close to zero, the main valve plate closes quickly under the action of its own gravity. Due to the decrease in the pressure at the inlet of the valve, the pressure water at the outlet of the valve enters the upper cavity of the diaphragm controller through the connecting pipe, and the water in the lower cavity is pressed back to the inlet of the valve through the connecting pipe at the inlet of the valve. The slow closing valve plate closes slowly, and the slow closing time can be Adjust through the control valve. The quick closing of the main valve plate and the slow closing of the slow closing valve plate conform to the two-stage closing law, which can effectively eliminate water hammer.
The multifunctional water pump control valve is used on the pump outlet pipeline of the water supply system of high-rise buildings and other water supply systems to prevent and weaken the water hammer and water hammer of the pipeline when the pump is opened and closed, and prevent the water from flowing backward to protect the pump.