Deaerator for Boiler Feedwater from Mexico
Vessel that removes dissolved oxygen from feedwater to prevent boiler corrosion, using steam scrubbing. Functions as auxiliary plant under HTS 8404.10.00 when integrated with 8402/8403 boiler systems. Tray or spray-type designs for high-capacity plants.
Duty Rate — Mexico → United States
13.5%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document oxygen removal efficiency curves (typically <7 ppb)
• Include vent condenser details if integral to the deaerator assembly
• Classify as water treatment only if not boiler-feed specific; link to steam cycle