VPSA Vacuum Pressure Swing Oxygen Plant from Japan
Vacuum pressure swing adsorption plant produces tonnage oxygen from air using zeolite adsorbents, with vacuum regeneration for energy efficiency in steelmaking. HTS 8421.39.0140 applies to this large-scale gas separation apparatus.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Declare plant capacity (NM3/hr) and adsorbent volume for proper statistical reporting
• Include vacuum pump integration details to avoid parts classification
• Obtain pressure vessel inspections for modular skid-mounted units