In order to help people better purchase high-quality products, it is necessary to understand the working principle and advantages of electric ball valves. First question: What is the working principle of the electric ball valve? 　　

Electric ball valve is suitable for two position cutting off and conditioning. The direct connection method is selected for the connection between the electric ball valve and the actuator. The electric actuator of the electric ball valve has a built-in servo system, and it does not need to be equipped with a servo amplifier. The operation can be controlled by inputting 4-20mA signal and 220VAC power supply.