Ball valve is one of the earliest types of valves. After years of development, it has been continuously improved and innovated in production process and product structure. It has become the main classified product of valves and is widely used in various industries, such as petroleum refining, chemical industry, iron and steel, water conservancy and so on. It plays an important role in the national economy.

Ball valve is divided into two pieces and three pieces, the role is to control the flow of pipeline media, the main working principle is that the cock of the ball valve is a ball, rotating 90 degrees to complete the valve opening and closing movement, only a small rotating moment can make the valve close. Ball valves have developed from the simple direction of cutting off, distributing and changing the flow of media to the role of throttling and controlling the flow. It can be seen how fast the technology is being updated. Now the variety and quantity of ball valves are increasing, and the development direction is towards high temperature, high pressure, high sealing, large caliber, long life and excellent regulation. It is believed that in the near future, the ball valve can achieve its development goals and become one of the leading valves in industry.