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Fittings and Accessaries
Forged A182F304 Cryogenic Gate Valve with Integral Flange End
Cryogenic Gate Valve is a specialized high-performance valve engineered exclusively for reliable on/off flow control in ultra-low temperature (-196℃ to -40℃) industrial applications, specifically designed to handle cryogenic media such as liquid nitrogen (LN2), liquid oxygen (LOX), liquid argon (LAR), liquefied natural gas (LNG), and other low-temperature fluids. Crafted from cryogenic-grade materials with anti-cold brittle design and advanced sealing technology, this valve effectively prevents media vaporization, stem leakage, and structural damage caused by extreme low temperatures.
Key Features
-Cryogenic-Grade Material Selection: Adopts low-temperature-resistant materials to avoid cold brittleness and ensure structural integrity at ultra-low temperatures:A352 LCB (for -46℃ to 343℃), A352 LCC (for -101℃ to 343℃), A352 LF2 (for -196℃ to 343℃), 304/316/316L stainless steel (for -196℃ to 425℃)—all materials undergo strict low-temperature impact testing (-196℃ Charpy test) to meet cryogenic service requirements.
– Anti-Cold Brittle & Thermal Insulation Design: The valve body is equipped with integral thermal insulation jacket (optional) or vacuum insulation structure, minimizing heat transfer from the atmosphere to the cryogenic media, preventing media vaporization and frost formation on the valve surface. The valve structure is optimized to avoid stress concentration, eliminating the risk of cracking due to thermal shock and cold brittleness.
-Cryogenic-Specific Testing: Every valve undergoes strict cryogenic performance testing, including low-temperature hydro-static pressure test (-196℃), air tightness test at operating temperature, and cold shock test (cycling between -196℃ and room temperature) to verify sealing performance and structural integrity. All tests comply with international cryogenic standards to ensure reliability in ultra-low temperature service.
Technical Specifications
-Design Standard:ISO 12224 (cryogenic valves), DIN 3352 (cryogenic gate valve variant), BS 6364 (cryogenic service valves).
-End Connection: Flanged end (ASME B16.5/EN1092-1,Integral or welded type optional),Butt welded end(ASME B16.25),Socket welded end(ASME B16.11,Extended nipple optional),Threaded end(ASME B1.20.1)
-Size:DN15 – DN600 (1/2″ – 24″), with custom sizes available for large-scale LNG storage and transmission systems.
-Pressure: PN10, PN16, PN25, PN40, PN63, PN100; Class 150, Class 300, Class 600, Class 900
-Body Material: LCC/LCB,LF2,CF8/CF8M,F304/F316
-Operation:Hand wheel,Bare shaft with ISO top flange, Electric,Pneumatic,etc
Application
-Operating Temperature: -196℃ ~ -40℃ (varies by material)
*A352 LCB/LF2: -46℃ ~ 343℃
*A352 LCC: -101℃ ~ 343℃
*304/316: -196℃ ~ 425℃
-Primary Media: Liquefied natural gas (LNG), liquid nitrogen (LN2), liquid oxygen (LOX), liquid argon (LAR), liquid helium, liquid hydrogen, cryogenic refrigerants, and other ultra-low temperature fluids requiring reliable on/off control and zero leakage.
-Applicable Scenarios: LNG storage and transmission terminals, LNG marine vessels, cryogenic air separation plants, aerospace propulsion systems, medical cryogenic equipment (liquid nitrogen storage), refrigeration and cold storage systems, chemical plants with cryogenic processes, and nuclear fusion projects—all scenarios requiring safe and stable flow control of cryogenic media.
