Parts
Auxiliary plant for use with boilers of heading 84.02 or 84.03 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapour power units. > Parts > Parts
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Subheadings
Products classified under Tariff item 8404.90.00
Boiler Draft Fan Impeller
A precision-balanced rotor assembly for forced draft or induced draft fans used in boiler auxiliary systems. This impeller is a replacement part for fans that support combustion air and flue gas movement, which are integral to the operation of auxiliary plant for boilers of heading 84.02 or 84.03.
Boiler Soot Remover Motor Drive
An electric gearmotor unit that powers retractable soot blowers in boiler auxiliary cleaning systems. This motor drive is a part of soot removers used with boilers of heading 84.02 or 84.03, ensuring automated maintenance of heat transfer surfaces.
Condenser Tube Sheet
A thick forged plate with precision-drilled holes designed to hold condenser tubes in steam power units. This tube sheet is a critical part of condensers for steam or other vapour power units, facilitating heat exchange for vapour condensation.
Condenser Waterbox End Cover
A flanged steel cover that seals the ends of condenser waterboxes, providing access for tube maintenance in steam power condensers. This end cover is a part of condensers for steam or other vapour power units, with corrosion-resistant coating for cooling water exposure.
Economizer Support Bracket Set
Heavy-duty fabricated steel brackets and hangers used to mount economizer modules within boiler casings, designed to handle thermal expansion. These supports are parts of auxiliary plant for boilers of heading 84.02 or 84.03, ensuring structural integrity.
Economizer Tube Bundle
A heat exchanger assembly of finned tubes designed to recover waste heat from flue gases in boiler systems, preheating feedwater to improve efficiency. This tube bundle is a part of auxiliary plant for boilers of heading 84.02 or 84.03.
Gas Recoverer Baffle Assembly
Perforated steel baffles that direct flue gas flow through heat recovery surfaces in boiler auxiliary systems, maximizing energy extraction. These baffles are parts of gas recoverers for boilers of heading 84.02 or 84.03.
Heat Recovery Damper Assembly
An adjustable blade damper that controls flue gas bypass around economizer sections in boiler heat recovery systems. This damper assembly is a part of gas recoverers for boilers of heading 84.02 or 84.03, enabling temperature control for optimal recovery.
Soot Blower Element
A retractable lance or rotary assembly with nozzles that inject steam or air to dislodge soot from boiler tubes, maintaining heat transfer efficiency. This element is a part of soot removers, which are auxiliary plant for boilers of heading 84.02 or 84.03.
Soot Remover Control Valve
A high-pressure steam control valve that regulates flow to soot blower lances in boiler cleaning systems. This valve is a part of soot removers for boilers of heading 84.02 or 84.03, enabling automated sequencing to prevent tube erosion.
Steam Condenser Shell Section
A cylindrical pressure vessel section that houses tube bundles in surface condensers for steam power units, designed to withstand vacuum conditions. This shell section is a part of condensers for steam or other vapour power units, vital for Rankine cycle efficiency.
Superheater Coil Assembly
Coiled high-temperature alloy tubes that superheat saturated steam from boilers to increase energy content and efficiency in power generation. This coil assembly is a part of auxiliary plant for boilers of heading 84.02 or 84.03.
Superheater Header Manifold
A forged steel manifold that distributes superheated steam through parallel circuits in boiler superheaters, equalizing flow and pressure. This header manifold is a part of auxiliary plant for boilers of heading 84.02 or 84.03, designed for high-pressure power generation.