There are over 2300 valve manufacturers in China, offering several major categories, more than 3500 varieties, and over 40000 specifications of valve products. The domestic valve market is divided into the new construction and expansion project market, and the old equipment maintenance and renovation project market. From these two markets, it can be seen that there is a serious oversupply of ordinary valve products. Secondly, there is fierce competition and disorderly competition among enterprises, with counterfeit and shoddy products. The market is very irregular, which has led to some valve manufacturers suffering significant losses in fierce competition year after year. With the development and improvement of the market economy, especially after entering the World Trade Organization, market changes are becoming increasingly significant. Enterprises are increasingly influenced by the market, and users' demand for market products is increasing. The demand for product development and production cycles is becoming shorter and shorter. The domestic valve industry is mainly used in the following areas: valves for urban construction. Low pressure valves are generally used in urban construction systems, and are currently developing towards environmentally friendly and energy-saving directions. Environmentally friendly rubber plate valves, balance valves, centerline butterfly valves, and metal sealed butterfly valves are gradually replacing low-pressure iron gate valves. Domestic urban buildings require valves such as balance valves, soft seal gate valves, butterfly valves, etc. In urban heating systems, a large number of metal sealed butterfly valves, horizontal balance valves, and buried ball valves are required to solve the problem of longitudinal and transverse hydraulic imbalance in pipelines, achieving energy conservation and heat balance. In the domestic environmental protection system, the water supply system mainly requires midline butterfly valves, soft seal gate valves, ball valves, and exhaust valves (used to remove air from pipelines). The sewage treatment system mainly requires soft sealed gate valves and butterfly valves. City gas valves account for 22% of the entire natural gas market, with a large amount of valves and various types. We mainly need ball valves, plug valves, pressure reducing valves, and safety valves. Valves for long-distance pipelines are mainly used for crude oil, finished products, and natural pipelines. The most commonly used valves for this type of pipeline are forged steel three body full bore ball valves, sulfur resistant flat gate valves, safety valves, and check valves.