The multi-function water pump control valve is installed at the outlet of the water pump, which realizes the functions of slow opening and full opening in sequence. 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. So everyone knows what is the working principle and characteristics of the JD745X multifunctional water pump control valve?
The working principle of the JD745X multifunctional water pump control valve: when the water pump is started, the water pressure acts on the main valve disc and the lower cavity of the control room. This pressure makes the main valve open, and the water in the upper cavity of the control room drains slowly through the regulating valve B. To the outlet end, the main valve opens slowly. Setting the opening degree of the regulating valve can get a proper opening speed of the main valve.
When the water pump stops working, the water pressure at the inlet drops rapidly, and most of the opening is quickly closed under the action of its own weight and spring pressure to prevent water backflow. The remaining opening is combined by the water pressure in the upper cavity of the control chamber and the water pressure in the lower cavity. Slowly closing down, the slowing down of the closing speed forms a buffer to prevent the pressure from increasing sharply. Setting the opening and opening ratio of the regulating valve A and B can obtain the appropriate opening and closing speed of the valve.
Working characteristics of JD745X multifunctional water pump control valve: 1. It is effective in preventing water hammer. It integrates the technology of eliminating water hammer such as slow opening, non-return quick closing, slow closing, etc., to prevent the pump without hammer and stop pump backflow and water hammer. Damage to water supply pipes and pumps. 2. Easy to operate, no need to add a power distribution control system for the valve, the valve will automatically complete the control function in sequence with the opening and stopping of the water pump. Appropriate control parameters can be obtained by setting the opening of the regulating valve. 3. The valve body adopts a full-channel, direct-flow and streamlined design. The hydraulic loss is small and the energy saving effect is good.
When we all operate and use the JD745X multifunctional water pump control valve, we should all understand the working principle and characteristics of our control valve, and the correct way to operate and use our valve is what we need.