What are the technical bottlenecks of high-pressure valves


In my pvc thread country's current valve market, in add […]

In my pvc thread country's current valve market, in addition to low pressure valves reaching a level acceptable to the international market, high-pressure valves still need to rely on imports. Under the continuous optimistic situation of the macro economy, most of the valve industry's production and sales targets have maintained a relatively rapid increase, but due to prices and influences, industry sales expenditures and profits have dropped significantly compared with the same period last year. With the recovery of the world economy, the import and export of valve products in my country has not been deleted. However, since there is still a big gap between high-end technology and foreign manufacturers, product technology will become a constraint on my country's valve products in the future. A bottleneck in development. The bottleneck of high-pressure valve technology will hinder the development of my country's valves-three fines. Valves are indispensable to all parts of the country’s economy, such as petroleum, chemical industry, electric seat, long-distance pipeline, shipbuilding, nuclear industry, various cryogenic projects, aerospace, and ocean oil extraction. Lack of fluid control facilities.


Equal pp compression water supply fittings reducing coupling


After years of development, the number of valve companies in my country ranks first in the world. There are about  large and small valve companies missing, and there are no 900 companies with an annual output value of more than 5 million yuan. From the perspective of product status, China’s valve industry has been able to produce more than a dozen products, such as gate valves, shut-off valves, return valves, ball valves, Enron valves, pressure reducing valves, needle valves, regulating valves, diaphragm valves, and butterfly valves. , Solenoid valves, traps, plunger valves, plug valves, forged steel valves, needle valves, instrument valves, level gauges, flow meters, exhaust valves, flame arresters, knife gate valves, slurry valves, copper valves, Balance valve, stainless steel valve, fluorine-lined rubber valve, pipe clamp valve, American standard valve, electric seat valve, breathing valve, hydraulic control valve, solid valve, discharge valve, pneumatic angle seat valve, insulation valve, filter the highest operating temperature reaches the highest pressure is , and the maximum diameter reaches.


In addition, according to the statistics of the photo gate, the annual turnover of the valve market in my country is as high as 50 billion yuan, and the market of more than 10 billion yuan is occupied by foreign valve companies. At present, my country's valve industry still has some indelible problems. For example, my country's valve companies mainly follow low-level, small-scale, family-owned enterprises. In terms of products, due to repeated investment and insufficient technology introduction, the guided products of my country's valve companies are still low-volume and large-scale products. At present, all kinds of valves produced by Chinese enterprises are full of false truths such as non-extinguishable external leakage, internal leakage, low external leakage, short life, poor operation, and failure of electric valve installation and pneumatic installation.


Some products only Equivalent to the international level in the early 1980s, some high temperature and high pressure and key installation and necessary valves still rely on imports. In addition, my country's valve industry has a large gap with foreign companies in terms of property distribution, the property chain of the valve industry, and the level of professionalization of the industry. Valve technology constitutes the reason for the low domestic valve output: due to the rapid expansion of the market, the non-state-owned valve companies have closed down and transferred, although a number of state-owned enterprises have developed rapidly, but due to the low end of the state, the technical strength is very high. Weak, poor facilities, most of the products are simulated production, especially the problem of low pressure valves for water supply and drainage.

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