Why use extended bonnet for cryogenic valves?

The suitable temperature of the medium for cryogenic valves is -40℃~-196℃. Usually, cryogenic valves will adopt extended bonnet. The extended bonnet is used to specify low temperature valves including low temperature emergency shut-off valves, low temperature shut-off valves, low temperature check valves, LNG-specific cryogenic valves, and NG-specific cryogenic valves, which are mainly used in chemical […]

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