The valve is mainly used for opening and closing, throttling and ensuring the operation of pipeline and equipment. Ceramic valves are widely used in petroleum, chemical, machinery and other fields. Using the wear-resistance and corrosion resistance of ceramics to make wear-resistant and corrosion resistant parts to replace metal materials is one of the important directions for the development of high-tech material market to the valve industry in recent years. Generally, the crystal ion radius of ceramic materials is small, and the ion price is high, and the coordination number is large. These properties also determine the tensile strength, compressive strength, hardness, etc. of ceramic valves are very high. The use of ceramic valves can greatly reduce the maintenance and replacement times of valves, improve the stability of supporting equipment operation system, and save equipment repair costs.