Electric ball valve is a commonly used equipment for controlling medium flow, which is composed of valve body, valve core, valve seat, valve stem, electric control device, etc. It can be used to control the flow of various media, such as water, oil, gas, etc. It can be used in various industrial occasions, such as petroleum, chemical industry, electricity, metallurgy, mining, thermal power, hot water, air conditioning, etc.

1. The working principle of electric ball valve is that when the electric control device controls the valve stem, the valve stem will push the valve core, and the valve core will move on the valve seat. When the valve core moves to a certain

position, the medium flow rate will be controlled, thereby achieving the purpose of controlling the medium flow rate.

2. Electric ball valves have many advantages. Firstly, they are flexible in operation, capable of continuous adjustment, remote control, automatic control, safe and reliable control, and can meet different control requirements.

3. Secondly, the control accuracy of electric ball valves is high, which can achieve precise control and meet different control requirements.

4. In addition, the installation and maintenance of electric ball valves are relatively simple, with a simple structure and convenient installation and maintenance, which can save installation and maintenance time and costs.

5. Finally, the electric ball valve has good wear resistance, which can meet the requirements of different working conditions and extend its service life.

6. In short, electric ball valves are a commonly used device for controlling medium flow. They have the characteristics of flexible operation, continuous adjustment, remote control, automatic control, safe and reliable control, high control 

accuracy, simple installation and maintenance, and good wear resistance. They can be widely used in various industrial occasions.