Cryogenic Butterfly Valve is engineered for high-flow isolation and throttling in ultra-low temperature applications down to -196°C (-320°F). Utilizing a triple-offset (TOV) geometry combined with an extended bonnet design, this quarter-turn valve keeps the stem packing high above the freezing zone while providing a friction-free, non-rubbing seal that eliminates seat wear during thermal expansion and contraction.
Featuring a field-replaceable metal seat ring and spring-energized seals, the cryogenic butterfly valve achieves bi-directional, bubble-tight shut-off in high-pressure liquefied gas lines. Its compact face-to-face dimensions and significantly reduced weight make it the industry standard for large-bore liquid natural gas (LNG) terminals, air separation units (LIN, LOX, LAR), liquid hydrogen transport, and aerospace fueling facilities.
Key Features
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Triple-Offset (TOV) Geometry: Eliminates friction between the disc seal ring and body seat during rotation, preventing seat galling and extending service life in cryogenic media.
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Extended Bonnet (Drip Collar): Elevates stem packing high above the freezing line, preserving gland packing elasticity and preventing moisture ice lock.
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Bi-Directional Bubble-Tight Sealing: Precision-machined laminated metal-to-metal seats or solid PCTFE rings ensure zero-leakage performance under extreme cold.
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Lightweight & Compact Footprint: Short wafer/lugged face-to-face dimensions save structural space, reduce thermal mass, and speed up cooldown cycles.
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Fire-Safe & Anti-Static Certified: Full metal-to-metal seating inherently satisfies fire-safe standards (API 607 / ISO 10497) for flammable gas service.
Brands We Provide
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OMB VALVES
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KITZ CORPORATION
Applications
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Large-Diameter LNG Processing Trains, Storage Tanks & Loading Arms
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Industrial Air Separation Plants (Liquid Oxygen, Nitrogen, Argon)
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Cryogenic Ship-to-Shore Bunkering & Marine Piping Systems
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Liquid Hydrogen (LH2) Fuel Transfer Lines
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Ethylene & Cold Box Distribution Piping
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Power Generation & Aerospace Cryogenic Test Facilities
Benefits
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Cost & Weight Efficiency: Significantly lighter and more economical than equivalent large-diameter gate, globe, or ball valves.
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Fast Quarter-Turn Operation: Low operating torque allows rapid 90-degree isolation using compact pneumatic or electric actuators.
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Low Thermal Mass: Reduces the amount of liquid gas required to cool down the valve body before operation, minimizing boil-off gas (BOG) losses.
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In-Line Seat Maintenance: Top-entry or flanged designs allow easy seat ring inspection and replacement without removing the valve from the skid.
Our Cryogenic Butterfly Valves at AustraliaValves.com are manufactured and cryogenic-tested with liquid nitrogen (LN2) and helium in strict accordance with BS 6364 and ISO 28921, available in custom extension lengths and offset configurations across Australia.
For technical datasheets, sizing calculations, or to request a quote, please contact us.
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