According to announcement No. 15 of 2020 issued by Ministry of Industry and Information Technology of the People's Republic of China, Ministry of Industry and Information Technology of the People's Republic of China approved and published a batch of industry standards, among which 18 standards centralized by National Technical Committee for Standardization of Valves and National Technical Committee for Standardization of Safety Pressure Relief Devices are hereby published, as shown in the following table: No Standard number Standard name Under centralized unit   1 JB/T 13769-2020 Water hammer relief valve National Technical Committee for Standa

Valves are the most common equipment in chemical enterprises. It seems easy to install valves, but if they are not executed in accordance with relevant technologies, safety accidents will occur... No-no 1 Hydrostatic test was carried out under negative temperature in winter. Consequence: the tube freezes quickly during the hydrostatic test, causing the tube to freeze. Measures: water pressure test should be carried out as far as possible before winter application, and the water should be blown clean after pressure test, especially the water in the valve must be cleared in the clean, otherwise the valve will be light rust, heavy freeze crack. During the hydrostatic test in winter, the project must be carried out at a positive indoor temperature and the water must be blown

China's valve industry first draft new international standards ISO 22153:2020 "the general requirements of industrial valve electric actuator has officially promulgated, the standard shall be presided over by Chinese hefei general machinery research institute co., LTD, and revising my county unit also participate in the standard formulation work, this also is the 2019 world youth will always fine pump valve industry technology since the series of activities to carry out docking, realize own my county pump valve industry transformation and upgrading, promote scientific and technological innovation ability, heighten the advantage of" made in zhejiang "always fine another achievement. Boost the transformation and development of pump and valve industry At the 2019 world youth w

The reason why the valve has a good sealing effect in the process of use, is because it needs effective transport and contact medium in the process of use, low temperature gate valve is also widely used in the current market, we can see in the actual selection process what are the specific advantages of use?The products manufactured by professional manufacturers have a longer service life and can also bring a lot of convenience. The fluid resistance is small, the sealing surface erosion effect is small In choosing a cryogenic valve at ordinary times, can find the product range is very widely used in the market now, we need to know is the product in the actual design process has the characteristics of, because the fluid resistance is small, so the sealing face in use

On September 28, China Power Investment Corporation announced the landmark achievement of China's third-generation nuclear independence -- China's independent nuclear power technology brand and the world's advanced third-generation nuclear power model "Guohe No.1" in Shanghai. A year ago in September 2019, the State Council Information Office of China's first white paper on nuclear safety - white paper points out that China's nuclear safety, formed a complete system of nuclear industry, China's nuclear cause for energy security, protect the ecological environment, improving people's living standards, promote economic made important contributions to the development of high quality are also out of a nuclear safety road with Chinese characteristics. Third and fourth generatio

Corrosion has long been one of the most troublesome hazards of chemical equipment. A slight mistake can damage the equipment, or even cause accidents or disasters.According to relevant statistics, about 60% of the destruction of chemical equipment is caused by corrosion, so in the selection of chemical valve should first pay attention to the scientific nature of material.There is usually a misunderstanding, that stainless steel is "universal material", no matter what medium and environmental conditions hold out the stainless steel valve, this is a great mistake. Chemical valve material should be based on the different media, specific analysis of specific problems, not one size fits all.The following for some common chemical media to talk about the selection of

The outer surface of the valve should be painted out of the factory, the paint layer should be durable, beautiful rules, and ensure that the mark is clear.1, valve products according to the body material to identify the paint, the color according to the table Body material Gray cast iron, malleable cast iron Nodular cast iron Carbon steel Acid resistant steel, stainless steel Alloy steel Identify paint color Black Silver Medium grey Sky blue Medium blue Note: acid resistant steel and stainless steel are not allowed to be painted, and copper alloy is not allowed to be painted

Domestic VS imported valve, how will you choose?As the saying goes, "the moon is bright at home," but now more and more people admire foreign imports.In the industrial sector, the trend is slowly spreading.Just say a common valve, same material, same function, the price of imported goods can be multiplied several times.Imported valve products in the price set their own unique style, but even if expensive, people still flock to. Is the inlet valve really that good?Where is the gap between domestic valve and imported valve?How can we close these gaps? The term "imported goods" refers to the products that are imported in their original packaging. From research and development to production, they are entirely in the place of origin of foreign countries, and foreign standards are

The National Energy Administration recently issued the guidelines for Energy Work in 2020 (hereinafter referred to as the Guidelines).The Opinions emphasized that multiple measures should be taken simultaneously to enhance the capacity of oil and gas security.Among them, "increase oil and gas exploration and development efforts" is listed as the first task."Why the emphasis on oil and gas exploration when oil prices are so low and you can buy oil abroad?"In the face of public doubts, Jin Zhijun, director of the State Key Laboratory of Shale Oil and Gas Enrichment and Effective Exploitation and an academician of the Chinese Academy of Sciences, told China Science Daily that oil and gas, like food and water, have become human necessities and strategic materials related to national securit

Fluorine plastic anticorrosive valve in the petroleum, chemical industry, medicine, metallurgy, electric power industries in contact with acid and alkali of strong corrosive medium, such as device has been widely used, but on how to choose good, with good lining fluorine plastic valves, according to our customers for many years field application experience, transform fluorine plastic anti-corrosion valve selection to medium temperature, pressure, pressure used several conditions following note rubber lining valves: Temperature of medium used for fluorine-lined plastic valves Lined with fluorine plastic valve, the use of fluorine plastic is F46(FEP), the use of the medium temperature can not exceed 150℃(medium temperature short time to 150℃, long time use temperature