BAHX Cold Box Heat Exchanger for LNG Liquefaction
A brazed aluminum plate-fin heat exchanger integrated into LNG cold boxes for natural gas liquefaction, facilitating multi-stream heat transfer at sub-zero temperatures. Classified under HTS 8419.50.10.00 for its role in industrial cooling and condensing processes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If designed specifically for LNG refrigeration compressors
Heat exchangers integral to refrigerating equipment for hydrocarbon gases fall under refrigeration machinery.
If supplied as a component set within a skid-mounted LNG module
Machinery parts not elsewhere specified may apply for assembled process modules.
If shell-and-tube configuration rather than plate-fin
Different heat exchanger geometries have separate tariff provisions.
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Import Tips & Compliance
• Obtain cryogenic testing certifications (e.g
• impact tests at -196°C) to prove suitability for LNG applications
• Declare fin density, passage configurations, and brazing process details to confirm classification
• Beware of valuation issues; exclude installation costs from customs value for modular cold box units
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