The cryogenic gate valve, a vital component for ethylene, liquefied natural gas, and other chemical devices, is engineered for exceptional performance in extreme environments. This valve is available in two main types: the cryogenic floating ball valve and the cryogenic standing ball valve, each crafted to meet the specific demands of cryogenic applications. The innovative long-necked structure is designed for optimal function at temperatures not exceeding -50ºC. For temperatures dropping below -50ºC, it is ingeniously applied to safeguard the stuffing box. This strategic placement ensures the stuffing box remains safely distanced from extreme cold, preserving its integrity. To further enhance sealing performance, the addition of cold insulation material can effectively prevent the loss of cold energy, making it indispensable for applications in ethylene, liquefied natural gas, and other chemical apparatus. Design and Manufacture Standards
BS6364: Valves specifically crafted for cryogenic service, ensuring robust performance.
ASME B16.5: Details on pipe flanged and flanged fittings, essential for secure connections.
ASME B16.25: Specifications for butt welding ends, guaranteeing a precise fit.
ASME B16.10: Dimensions for face to face and end to end of valves, facilitating seamless integration. ASME B16.34: Covers valves with flanged, threaded, and welding ends, offering versatile installation options.
SHELL SPE 77/200: Standards for valves in low temperature and cryogenic services, ensuring reliability and safety.
Inspection and Test Standards
API598: Comprehensive valve inspection and testing procedures for assured performance.
BS6364: Standards for valves dedicated to cryogenic service, affirming quality and endurance.
SHELL SPE 77/312: Protocols for fugitive emission production testing, enhancing environmental compliance.
ISO 15848: Industrial valves' measurement, test, and qualification procedures for fugitive emissions, ensuring meticulous compliance and sustainability.
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