The advantages of ceramic valves are that metal valves are limited by the conditions of the metal material itself, making it difficult to meet the needs of harsh working conditions such as high wear and strong corrosion. Mainly manifested as short service life and severe leakage, greatly affecting the stability of system operation. Traditional metal valves urgently need to be thoroughly innovated in terms of materials, design, and manufacturing processes. Wear resistant ceramic valves made of special ceramic materials are mainly used in industrial fields such as power, petroleum, chemical, metallurgy, mining, and sewage treatment. Especially in the face of harsh working conditions such as high wear, strong corrosion, high temperature, and high pressure, their excellent performance is demonstrated. It can meet the high wear and strong corrosion usage environment, and its outstanding feature is the ultra long service life. Its cost-effectiveness is far superior to other similar metal valves, and ceramic valves are increasingly recognized by industry insiders for their excellent performance.
Advantages of ceramic valves:
① The sealing and vulnerable components of the valve are made of high-tech new ceramic structural materials to extend its service life, which improves the wear resistance, corrosion resistance, and sealing performance of the valve product, greatly extending its service life.
② The use of ceramic valves can greatly reduce the maintenance and replacement frequency of valves, improve the safety and stability of supporting equipment operation systems, reduce the labor intensity of workers, and save equipment repair costs.
③ The promotion of the use of ceramic valves for environmental protection has improved the sealing performance of industrial pipelines, while minimizing leakage and playing a positive role in promoting environmental protection.
④ Low raw material cost: The raw materials for manufacturing ceramics are widely available and cost-effective. Ordinary elements such as aluminum, carbon, and silicon can be used to produce high-performance ceramic materials, which can save a large amount of metal materials and rare mineral resources.
Ceramic ball valve：
Ball valves can be used for flow control of corrosive or high-temperature fluids containing solid substances. Depending on the application, all flow components can be made of ceramic, or only important parts can be sprayed with ceramic. If the channel of the ball valve changes from a circular hole to a triangular hole, the flow characteristics are roughly equal in percentage. Therefore, when the valve positioner is installed, it can be used as a regulating valve. If the vertex of a triangular hole is made into an angle shape, the range of amplitude variation will be large, making it ideal as a regulating valve. However, if the corner is not a fillet, it will cause stress concentration and easy to crack. Therefore, although the adjustment performance of the regulating valve will be slightly reduced after the fillet is made, it should be made into a fillet shape. At this point, the fluid flow rate through the regulating valve also increases, which exacerbates corrosion and wear. Therefore, it is more important to utilize and utilize the characteristics of ceramics.
Ceramic gate valve：
It is necessary to use this type of valve under extremely harsh conditions in coal gasification equipment, where the high temperature and high pressure gas contains hard particle corrosive gas streams of coal powder and ash powder. In the past, valves made of metal with cobalt chromium tungsten hard alloy deposited on the sealing surface could not meet the requirements for use. Nowadays, metal is used for the high-temperature and pressure resistant parts of the shell, while ceramic is used for the sealing parts. Due to the development of a unique structure to prevent micro powder abrasion, the service life of the valve has been greatly improved.
Ceramic diaphragm valve：
The structure of the diaphragm valve is very simple, and its contact medium part is composed of a ceramic valve body and a PTFE diaphragm. After precision grinding and polishing treatment, the ceramic valve seat surface is completely pressed against the diaphragm without leakage. As a supporting rubber lining material, fluororubber is used. The channel of the ceramic valve body has a smooth surface and minimal friction with the medium.
