High-Capacity Watertube Recovery Boiler
A specialized watertube boiler used in pulp and paper mills to recover chemicals from black liquor, producing over 45 tons of steam per hour. Classified under HTS 8402.11.00.00 for its watertube construction and exceeding steam production limit, integral to biomass energy recovery processes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If firetube design instead of watertube
Firetube boilers, even for high steam output, are separated into 8402.19 regardless of capacity.
If integral to a complete pulp processing machine
Boilers as parts of paper pulp machinery may be classified with the larger machine assembly.
If primarily for super-heated hot water without vapor generation
Super-heated water boilers without steam production capability move to Chapter 84 heading 8404.
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Import Tips & Compliance
• Provide detailed process flow diagrams showing black liquor recovery use; comply with EPA emissions standards documentation; confirm no classification as waste incinerator under 8417
Related Products under HTS 8402.11.00.00
Industrial Watertube Boiler for Power Plants
A large-scale watertube boiler designed for utility power plants, capable of generating over 45 tons of steam per hour through water-filled tubes heated by combustion gases. It falls under HTS 8402.11.00.00 due to its watertube design and high steam output exceeding 45 t/hour, used primarily for electricity generation.
Marine Watertube Steam Boiler
A robust watertube boiler for large cargo ships and tankers, generating excess of 45 tons steam per hour for propulsion turbines. It qualifies for HTS 8402.11.00.00 as a watertube steam generator surpassing the capacity threshold, built to withstand marine conditions.
Utility-Scale Biomass Watertube Boiler
A watertube boiler fueled by biomass for independent power producers, outputting over 45 t/hr steam for turbine generation. Falls under HTS 8402.11.00.00 due to watertube design and high-capacity steam production for non-domestic use.
Oil Refinery Process Steam Watertube Boiler
Heavy-duty watertube boiler supplying high-pressure steam over 45 tons per hour for refinery cracking and distillation processes. Classified in HTS 8402.11.00.00 for its watertube configuration and exceeding steam production specs in petrochemical applications.
Combined Cycle Power Plant HRSG Boiler
Heat Recovery Steam Generator (HRSG) watertube boiler in gas-fired combined cycle plants, producing >45 t/hr steam from turbine exhaust. HTS 8402.11.00.00 applies to its watertube recovery design and high steam capacity for supplemental power generation.
Waste-to-Energy Plant Watertube Boiler
Watertube boiler in municipal waste incineration facilities generating over 45 tons steam per hour for district heating or power. Under HTS 8402.11.00.00 for watertube steam production exceeding threshold in waste energy recovery.