Second, control the large flow. During the transportation of oil, the large flow will produce high efficiency. The pneumatic ball valve is a right angle swing structure. It is used together with the valve positioner, and has the characteristics of large rated flow coefficient. This feature improves the transportation volume and efficiency of oil compared with ordinary control valves, and simplifies complex operations. 　　

The most important function of pneumatic high-pressure ball valve is to change the flow direction of liquid, gas and other media in the pipeline, and also to adjust the flow. High pressure ball valves also have the characteristics of high temperature resistance, high pressure resistance and so on, making the shape valve one of the most dominant types in the valve industry. The functional principle of the spherical valve is very simple. The valve only transmits a certain force to the valve stem through a driving device, that is, through the lever principle. When this force is transmitted to the valve ball, the valve ball can only rotate 90 degrees. The hole of the valve ball is vertical or only parallel to the center of the valve's own pipe, so that the ball valve can complete the working process of fully closing or fully opening the valve.