Imported cryogenic valve technical requirements: imports of low-temperature valves, refers to the use of low-temperature steel as the valve body material, lengthened stem for low temperature liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, temperature -40 ℃ ~ 196 ℃ valve. According to the different requirements of the use of various imported low-temperature valve. 1, for low temperature liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum medium switch role of the valve, the main choice of imports of low-temperature valve, the import of low-temperature ball valve. 2, for the regulation of low temperature liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum medium pressure, temperature, flow valve, the selection of imported cryogenic control valve. 3, used to prevent cryogenic liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum medium back to the choice of imported low-temperature check valve. 4, used to protect the safety of cryogenic liquid storage and transportation equipment, when the pressure reaches a certain value of safe discharge, to use imported low-temperature safety valve.
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