This report is produced by Huajing Industrial Research Institute, which makes a specific analysis of the development status, competition pattern and market supply and demand situation of the valve industry in China, and analyzes the opportunities and challenges faced by the industry from the policy environment, economic environment, social environment and technical environment of the industry. It also focuses on analyzing the operation status and development pattern of key enterprises, and makes a professional prediction on the development trend of the industry in the next few years. To provide professional guidance and suggestions for enterprises, scientific research institutions, investment institutions and other units to understand the latest development trends and competition patterns of the industry and grasp the future development direction of the industry. The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the parameters (temperature, pressure and flow) of the transmission medium. According to its functions, it can be divided into shut-off valve, check valve, regulating valve, etc. Valves are widely used in petroleum, chemical industry, power station, long-distance pipeline, shipbuilding, nuclear industry, aerospace, marine oil production and other fields. They are indispensable fluid control equipment in various sectors of the national economy, with a large market scale. According to data statistics, the scale of China's valve manufacturing market in 2020 is about 12.69 billion US dollars, down 12.72% year on year.