Electric three-way ball valve is a device that can achieve flow control of liquid or gas in different pipelines. It has the advantages of simple structure, convenient use, and good sealing, and is widely used in fields such as chemical industry, petroleum, metallurgy, water treatment, food, etc. The control methods for electric three-way ball valves mainly include the following:

1. Manual control

Manual control is the basic control method for electric three-way ball valves. By manually rotating the operating lever, the ball moves correspondingly on the ball socket, thereby achieving the goal of opening, closing, or adjusting the flow rate. Manual control is suitable for situations that require low-frequency operations or do not require remote control.

2. Electric control

The electric three-way ball valve uses an electric actuator as the driving device, and the rotation of the ball is achieved by controlling the electric actuator. Electric control has the characteristics of high automation, high control accuracy, and convenient operation, and is suitable for situations that require frequent operation or remote control. At the same time, electric control can also be integrated with other automation devices to achieve some complex control strategies.

3. Pneumatic control

Pneumatic control refers to the use of a pneumatic actuator as a driving device to achieve the rotational motion of a sphere through the control of the pneumatic actuator. Pneumatic control has the characteristics of fast reaction speed, good reliability, and wide applicability, and is widely used in the chemical and petroleum industries. Compared to electric control, pneumatic control has a relatively lower cost, but requires a supporting air source system.