AsalAra Cryogenic Bellows Seal Valve
- Cryogenic Bellows Seal Valve
The AsalAra Cryogenic Bellows Seal Valve is engineered specifically for applications involving ultra-low temperatures, such as liquefied natural gas (LNG), liquefied oxygen (LOX), nitrogen, and other cryogenic fluids. These valves feature a metal bellows seal welded to the valve stem, creating a flexible and hermetically sealed barrier that prevents any leakage of fluids or gases even under the harshest cryogenic conditions.
Manufactured with materials carefully selected for their toughness and ductility at cryogenic temperatures, these valves maintain sealing integrity and operational reliability at temperatures as low as -196°C (-320°F) or below. The design eliminates the need for packing, which can become brittle or fail in such extreme conditions, thus enhancing safety and reducing maintenance requirements.
AsalAra’s cryogenic bellows valves are ideal for critical industrial sectors including LNG processing and transportation, aerospace, cryogenic storage, and medical gas delivery.
Valve Size (inch/mm)
Range
½" (15 mm) to 24" (600 mm)
Custom sizes available
Standard
Pressure Rating
ASME B16.34
Class 150 to 600
- Bellows: Stainless Steel 304/316, Inconel 625
- Valve Body: Low Temperature Carbon Steel, Stainless Steel, Inconel alloys
- Flanged (RF, RTJ)
- Butt Weld Ends
- Threaded Ends
AsalAra CryoSeal Series
High-Performance Cryogenic Bellows Seal Valves
Metal bellows hermetic seal
Ensures zero leakage, even under extreme cryogenic temperatures
Specially selected cryogenic-grade materials
Maintains toughness and ductility at ultra-low temperatures
No packing required
Eliminates packing failure risk, reduces maintenance
Superior leak prevention
Complies with stringent environmental and safety regulations
Wide size and pressure range
Versatile use across multiple cryogenic applications
LNG liquefaction and regasification plants
Cryogenic gas storage and transportation
Aerospace fuel systems
Medical and industrial gas distribution systems
Low-temperature chemical processing
- API 622 – Metal Bellows Seal Valves
- ASME B16.34 – Valve Pressure Ratings and End Connections
- ISO 15848 – Fugitive Emissions Testing
- MSS SP-134 – Cryogenic Valve Standards
- Cryogenic temperature cycling tests
- Helium leak detection and tightness verification
- Pressure and seat leakage tests at cryogenic conditions
- Material toughness and impact resistance testing
- Material selection to match specific cryogenic media
- Connection types per customer and project requirements
- Manual or automated actuation integration
- Specialized coatings or insulation for enhanced thermal protection
AsalAra Cryogenic Bellows Seal Valves combine advanced hermetic sealing with materials and designs optimized for extreme cryogenic environments, delivering unmatched reliability and safety for the most demanding industrial applications.