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(Content Translation)
A cryogenic breakaway valve (also known as a cryogenic emergency release coupling) is a safety device designed to automatically sever and seal fluid transfer lines handling liquefied gases at ultra-low temperatures (e.g., LNG, liquid nitrogen, liquid oxygen, liquid argon). It activates during emergencies (e.g., excessive pulling force, equipment displacement) to prevent uncontrolled leakage of cryogenic fluids, which could lead to hazards such as frostbite, asphyxiation, or explosions.
Key Attributes:
Temperature Resilience: Operates reliably at cryogenic temperatures (as low as -196°C).
Instant Sealing: Closes both ends of the disconnected pipeline simultaneously upon activation.
Sacrificial Design: Requires replacement after triggering to ensure continued safety.
Applications:
Widely used in cryogenic storage, transportation, and loading/unloading systems (e.g., LNG terminals, industrial gas supply chains).
(Note: "Breakaway Valve" is a general term; "Emergency Release Coupling (ERC)" is often used in technical specifications.)