China's control valve industry started late, but the rapid development. In the 1960s, China began to develop single-seat valve, two-seat valve and other products, mainly imitating the former Soviet union's products. Due to the backward level of the mechanical industry, the machining accuracy is low, which can only meet the general control requirements of the industrial production process at that time.

First, the development of China's control valve industry

China's control valve industry started late, but the rapid development. In the 1960s, China began to develop single-seat valve, two-seat valve and other products, mainly imitating the former Soviet union's products. Due to the backward level of the mechanical industry, the machining accuracy is low, which can only meet the general control requirements of the industrial production process at that time.

In the 1970s, with the expansion of industrial production scale and the improvement of industrial process control requirements, domestic control valve products have been unable to adapt to the control requirements of high pressure differential, low temperature, high temperature and strong corrosion conditions in the production process control. To this end, some large petrochemical enterprises in the introduction of equipment, but also introduced some overseas advanced control valves, such as with a balanced spool sleeve valve, eccentric rotary valve, etc., which has become the domestic control valve manufacturers development direction.

Since the beginning of the 1980s, with the implementation of China's reform and opening up policy, petrochemical, metallurgy, power and other industries rapid development, some control valve manufacturers began to introduce foreign famous control valve manufacturers technology and products, so that China's control valve product varieties and quality has been significantly improved. At the same time, the ministry of machinery industry organized key enterprises in the industry to develop a series of small precision control valves, so that China's control valve product series can be preliminarily improved.

In the 1990 s, with the improvement of domestic industrialization level, control valve enterprises in our country are also introduce and absorb foreign advanced technology has made great progress, after a number of private control valve enterprise arises at the historic moment, especially some of control valve joint venture start development and production of their products, promote the large increase in the level control valve industry in China, shorten the gap with foreign.

Since the 21st century, with the continuous progress of science and technology, the original control valve products have been unable to meet the market demand, some intelligent control valve products with automatic control technology has been gradually welcomed by the market, since then, China's intelligent control valve industry has entered a period of rapid development. During this period, a number of control valve manufacturers emerged in the market. Among the state-owned enterprises, wuzhong instrument and sichuan instrument co., ltd. are the industry leaders, while private enterprises, such as intelligent self-control and zhejiang linuo, have become market participants that cannot be ignored with their high-quality products and services.

Second, China's control valve industry leading domestic brands are basically distributed in the eastern region

At present, domestic control valve manufacturers are mainly concentrated in zhejiang, jiangsu and Shanghai and other places. According to the "control valve information" released in 2017 China regional control valve manufacturers TOP50 sales list enterprise geographical distribution data shows that there are 7 in zhejiang province, 4 in jiangsu province, and 6 in Shanghai have entered China regional control valve manufacturers TOP50 sales list.

According to the journal of Chinese instruments and meters, the current domestic mainstream control valve manufacturing enterprises all obtained the ISO9001 quality system certification and special equipment (pressure piping) TSG manufacturing license, and some manufacturers have through the API and CE certification, can be in accordance with ANSI, API, BS, JIS standard design and system control valve domestic production enterprises such as the widespread adoption of computer aided design (CAD), computer aided manufacturing (CAM) technology and 3 d dynamic design technology, improve the efficiency of product development, processing quality and reliability, effectively improve the enterprise core competitiveness.

Iii. The proportion of the total sales of TOP50 products in China is relatively stable

Control valve industry is an important part of industrial automation control, for the fluid control system valve, from the simplest globe valve to a very complex automatic control system used in a variety of valves, its varieties and specifications are quite various. Valves can be used to control the air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow.

According to the sales data of the top 50 enterprises in the whole industry in control valve information, China's control valve market in 2017 has a large growth compared with 2016. The total sales of the 50 enterprises on the list is 201.37 billion yuan, an increase of 13.01% compared with 2016. Domestic control valve brand sales accounted for 37.61%, slightly down from the market share of 37.64% in 2016. The number of enterprises on the list was 33. Foreign control valve brand sales accounted for 63.39%.

From 2013 to 2017, the top 50 manufacturers accounted for 31.27%, 31.31%, 32.76%, 37.64%, and 37.61% of China's product brand sales, respectively. The overall trend was stable and the development basically kept pace with the industry.

"Much starker choices-and graver consequences-in" the national strategic emerging industry development planning ", points out that in 2020 to set up a sound system and integrated coordination perception ability system of intelligent manufacturing equipment industry, domestic market share reached 50%, forming a batch of internationally competitive industry gathering area and enterprise group, the overall level of entering the international advanced level. China petroleum and chemical industry federation issued the "thirteenth five-year" development guide for the petroleum and chemical industry "pointed out that to improve the key equipment autonomy rate of key pump and valve, and strive to make the autonomy rate reach more than 90%.

In addition to the strong support of national policies and industrial policies, domestic control valve manufacturers also have the advantages of higher cost performance, closer to downstream customers, and more rapid after-sales response than imported manufacturers. In the environment where the reliability and adjustment accuracy of domestic control valves are gradually improved and the gap with imported advanced products is gradually narrowed, more and more domestic control valve products will be applied to large production lines, thus accelerating the import substitution process in the industry.

Control valves are most commonly used in petrochemical and chemical industries

Industrial control valve industry, as an important part of China's equipment manufacturing industry, is widely used in petroleum and natural gas, petrochemical and chemical industry, metallurgical steel, electric power, light industry and many other basic industries. It is an indispensable part of industrial process to accurately control medium flow, pressure, temperature, liquid level and other process parameters. Through the data collection of 171 control valve enterprises, it is learned that the design, production, sales, after-sales and trade-related practitioners of the control valve industry in China are maintained at more than 16,800, with the total sales volume of the industry exceeding 25 billion yuan in 2017.

At present, the domestic highest use of that control valve pressure level up to 2500 pounds, the highest temperature of 1200 ℃. The control valves used in the industrial system are imported except for the control valves used in some key parts such as high temperature, high pressure and high wear in power, petrochemical, metallurgy and nuclear power industries. Domestic control valves have been widely used in domestic thermal power units under 1000MW, and some of them have been used in oil refining, ethylene and coal chemical projects. In recent years, Chinese control valve manufacturers have also provided some nuclear control valves for a number of nuclear power plant units. The proportion of imported control valves required by Chinese industrial enterprises has been decreasing year by year. Meanwhile, the control valve products produced by some domestic enterprises have been exported with some matching projects.