Technical bottleneck of high-pressure solenoid valve to be broken

In China's current valve market, high-pressure solenoid valves still need to rely on imports, except that low-pressure valves reach acceptable levels in the international market. With the recovery of the world economy, the import and export of valve products in China has also increased, but because there is still a big gap in high-end technology compared with foreign manufacturers, in the future, product technology will become a constraint on the development of China's valve products. bottleneck. Under the situation that the macro economy continues to be optimistic, the production and sales indicators of the large-scale enterprises in the valve industry have maintained rapid growth. However, due to the price war, the sales revenue and profits of the industry have dropped significantly compared with the same period of last year.

It can be seen that as long as enterprises can seize the opportunity, strengthen research and development capabilities, and continuously improve the technological content and product quality of products, they can take an active position in the fierce market competition. In addition, China is facing the arrival of the industrialization era. Petrochemical industry, power industry, metallurgical industry, chemical industry and urban construction will increase the demand for valve products. After years of development, the number of valve companies in China ranks first in the world, with more than 6,000 valve companies of various sizes, of which 900 have an annual output value of more than 5 million yuan. This is mainly due to the support of national policies and the strong demand for the valve product market. In particular, several projects of the West-East Gas Pipeline, West-East Power Transmission, and South-to-North Water Transfer projects require a large number of valve products. In addition, according to relevant statistics, China's annual valve market turnover is as high as 50 billion yuan, of which more than 10 billion yuan of the market is occupied by foreign valve companies.

At present, there are still some problems in China's valve industry. For example, China's valve enterprises mainly focus on low-level, small-scale, family-run enterprises. Valves are indispensable fluid control equipment for various parts of the national economy such as petroleum, chemical, power station, long-distance pipeline, shipbuilding, nuclear industry, various cryogenic engineering, aerospace and marine oil recovery.

The reason for the low quality of domestic high-voltage solenoid valve products is that: due to the rapid expansion of the market, the original state-owned valve enterprises have shut down and turned, although a number of township enterprises have developed rapidly, but because the township enterprises have low starting points, the technical strength is very weak, and the equipment is rudimentary. Most of the products are imitated, especially the low-pressure valves for water supply and drainage. In addition, China's valve industry has a large gap with foreign companies in the industrial structure, the industrial chain of the valve industry, and the degree of specialization of the industry.

However, the above problems do not affect the future of China's valve industry. At present, various valves produced by Chinese enterprises generally have shortcomings such as leakage, internal leakage, low appearance quality, short life, inflexible operation, and unreliable valve electric devices and pneumatic devices. The department products are only commensurate with the early 1980s. At the international level, some of the valves required for high temperature and high pressure and pivot installations still rely on the inlet. In the product, because of repeated investment and insufficient technology introduction, the leading products of China's valve enterprises are still low-quality mass products. For example, during the 11th Five-Year Plan period of the power industry, the valve requirements for coal-fired large and medium-sized start-up projects totaled: total valve demand of 153,000 tons, annual average demand of 30,600 tons; total valve demand of 3.96 billion yuan, average annual demand The amount is 792 million yuan. In addition, China is gradually becoming the largest processing plant in the world, and the processing of high-voltage solenoid valve products faces more room for development.