At present, the valves commonly used in the production of various industries in our country are metal valves. The use of metal valves has been in the history of more than a hundred years. Although the structure and material improvements have been made during this period, the restrictions of metal materials themselves can not meet the requirements of high Wear and corrosion and other harsh conditions need, mainly reflected in the short service life, serious leakage, greatly affected the stability of the system operation. The traditional metal valve urgent need from the material, design and manufacturing processes and other aspects of radical innovation. As a new material in the 21st century, advanced ceramic materials have been valued by more and more scientific workers. Applying it to industrial valves is a bold and beneficial innovation. According to experts, the new ceramic valve has four major advantages: First, the use of new high-tech ceramic structural materials produced valve sealing parts and wearing parts, to improve the valve wear resistance, corrosion resistance and sealing, greatly extended Valve life. The second is the use of ceramic valves can greatly reduce the number of valve repair and replacement, improve equipment operation system security, stability, reduce labor intensity and save equipment repair costs. Third, the use of ceramic valves to improve the sealing of industrial piping systems, while minimizing leakage to prevent environmental protection will play a positive role in promoting. Fourth, a wide range of raw materials for manufacturing ceramics, low cost, with aluminum, carbon, silicon and other common elements can produce superior performance of ceramic materials, can save a lot of metal materials and rare mineral resources. The new ceramic valve is mainly used in electric power, petroleum, chemical, metallurgy, mining, sewage treatment and other industrial fields, especially in the face of high wear and tear, strong corrosion, high temperature, high pressure and other harsh conditions, but also shows its superior performance. It can meet the high wear and corrosion of the use of the environment, especially outstanding feature is the long service life, its cost performance is far superior to similar metal valves. With the continuous development and progress of science and technology, ceramic materials formulating, molding, processing and assembly technology and other aspects of the technology is more mature and complete, ceramic valve with its excellent performance more and more people in the industry agree.