Fire Tube Economizer Module from Mexico
Modular fire tube economizer with multiple passes for maximum heat transfer from flue gases to boiler feedwater. Specifically engineered as auxiliary equipment for water tube boilers under headings 8402/8403, hence HTS 8404.10.00.10. Includes mounting flanges for direct boiler integration.
Duty Rate — Mexico → United States
13.5%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Require flue gas flow calculations for proper sizing certification; ensure module pressure ratings exceed boiler operating pressure; provide installation drawings for customs valuation