High pressure ball valve refers to the valve whose opening and closing parts (ball) are driven by the valve stem and rotate around the axis of the valve stem. It is used for hydraulic mechanical equipment, hydraulic switches, natural gas, etc. The high pressure ball valve was introduced in the 1950s. With the rapid development of science and technology, the continuous improvement of production process and product structure, it has rapidly developed into a major valve category in just 40 years.