Скачать или смотреть Why do low temperature valves have to use metal sealing rings

In cryogenic working conditions ranging from -29℃ to -269℃, non-metallic seals like rubber tend to harden and become brittle, while metal seals can maintain stable performance. They can withstand extreme low temperatures of LNG (-162℃), liquid oxygen (-183℃), liquid hydrogen (-253℃), etc., without shrinking or deforming. Additionally, they can resist corrosion from cryogenic media, making them a core choice for cryogenic valve sealing, widely used in energy, chemical, aerospace and other fields.
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