2022/10/21 9:22:30Today, most urban resources are transported through the urban plumbing system, including running water, gas, oil, and so on, which we need to use in our daily life. When it comes to the current pipeline delivery system, these resources are generally transported by low temperature pipeline 2022/10/21 9:21:45General low temperature emergency cut-off valve, low temperature globe valve, low temperature check valve, LNG special low temperature valve, NG special low temperature valve and so on are used in the long neck valve cover, these valves are mainly used in 300,000 tons of ethylene, liquefied natural gas and other chemical equipment. 2022/10/21 9:20:38 When installing the electro-hydraulic valve, ensure its correct flow direction, and the flow direction sign is on the valve body. When THE NEW PIPELINE IS INSTALLED AND THE PIPELINE IS flushed, THE ELECTRO-HYDRAULIC valve must be removed first to avoid welding slag and debris remaining in the valve body and causing the electro-hydraulic valve to be closed loosely. 2022/10/21 8:36:55Worldwide, there are many kinds of valve driving devices (electric, pneumatic, hydraulic, electric-liquid linkage or gas-liquid linkage, etc.), complete specifications, safe and reliable. In recent years 2022/10/21 8:35:15the valve cover is designed as a long neck structure, can isolate the influence of low temperature medium on the packing, can prevent the performance of the cover seal is reduced, but also make the valve open and close flexible 2022/10/21 8:34:22From the metallographic perspective, in addition to austenitic steel, copper and aluminum with face-centered cubic lattice in metal materials, the general steel will appear low-temperature brittleness at low temperature, thus reducing the strength and service life of the valve. When selecting the main material, the material suitable for working at low temperature should be selected first.
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