GB/T 44916-2024

This standard specifies the design, material selection, and testing requirements for gate valves intended for ultra-low temperature service on ships and offshore platforms. It is applied in the construction and maintenance of vessels and marine facilities that handle liquefied gases, such as LNG carriers, where valves must reliably operate at cryogenic temperatures down to -196°C. The standard ensures valve integrity and safety under extreme thermal and pressure conditions, guiding both manufacturers and classification societies in qualification and type approval testing.