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Steam turbines and other vapour turbines. > Parts > Other parts of the goods of tariff item No. 8406.81.00 or 8406.82.00: > Other > Other
Duty Rate (from China)
Products classified under Tariff item 8406.90.39.00
Steam Turbine Bearing Housing
A bearing housing that encases and supports journal or thrust bearings in steam turbines, maintaining shaft alignment under high loads. It is a part of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As it is not a rotor, blade, or repair/remanufacture part, it falls under 8406.90.39 as 'other' parts.
8406.90.39Steam Turbine Bellows Expansion Joint
A multi-ply stainless steel bellows expansion joint that compensates for thermal expansion between turbine casing sections. It is a part of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As it is not a rotor, blade, or repair/remanufacture part, it falls under 8406.90.39 as 'other' parts.
8406.90.39Steam Turbine Blade Carrier Disc
Forged discs that serve as carriers for turbine blades, providing structural support in high-pressure stages of steam turbines. They are parts of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As they are not rotors, blades, or repair/remanufacture parts, they fall under 8406.90.39 as 'other' parts.
8406.90.39Steam Turbine Blade Locking Kit
Specialized pins, keys, and rivets that secure blades to turbine discs against centrifugal forces, sold as maintenance kits. They are parts of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As they are not rotors, blades, or repair/remanufacture parts, they fall under 8406.90.39 as 'other' parts.
8406.90.39Steam Turbine Coupling Shaft
High-strength forged shafts that connect turbine rotors to generators or loads, transmitting rotational power. They are parts of a steam turbine of heading 84.06, specifically for turbines of 8406.81.00 or 8406.82.00. As they are not rotors, blades, or repair/remanufacture parts, they fall under 8406.90.39 as 'other' parts.
8406.90.39Steam Turbine Diaphragm Staging
Steam turbine diaphragm staging assemblies consist of stationary diaphragm rings with precision-mounted guide vanes that direct steam flow onto the rotating blades for optimal energy extraction. These components are essential for controlling steam pressure and velocity through the turbine stages, and are classified as 'other' parts under tariff item 8406.90.39, distinct from rotors, blades, or casings.
8406.90.39Steam Turbine Emergency Overspeed Governor
Steam turbine emergency overspeed governors are mechanical backup devices that detect rotor overspeed and independently trigger steam valve closure, providing redundant safety protection required in nuclear power plants. These governors are classified as 'other' parts of steam turbines under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named components.
8406.90.39Steam Turbine Exhaust Casing Section
Steam turbine exhaust casing sections are low-pressure casing segments that direct exhaust steam to condensers, fabricated from specialized alloys to withstand vacuum conditions. These casings are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically enumerated turbine components.
8406.90.39Steam Turbine Generator Coupling
Steam turbine generator couplings are flexible disc or gear-type couplings that synchronize turbine and generator shafts for grid-stable operation, offering high misalignment tolerance for base-load power plants. These couplings are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named turbine components.
8406.90.39Steam Turbine Nozzle Ring Assembly
Steam turbine nozzle ring assemblies consist of circular arrays of precision nozzles that accelerate steam into high-velocity jets impinging on turbine blades, optimizing expansion efficiency. These assemblies are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named turbine components.
8406.90.39Steam Turbine Rotor Support Bracket
Steam turbine rotor support brackets are heavy fabricated steel brackets used to support turbine rotor assemblies during maintenance or transport, ensuring safe handling of megawatt-scale rotors. These brackets are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named turbine components.
8406.90.39Steam Turbine Sealing Gland
Steam turbine sealing glands are labyrinth or brush-type seals that prevent steam leakage along rotating shafts in turbines, enhancing efficiency in supercritical power plants. These glands are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named turbine components.
8406.90.39Steam Turbine Thrust Bearing
Steam turbine thrust bearings are tilting pad bearings that absorb axial loads from steam pressure differentials on rotors, oil-lubricated for continuous 24/7 operation. These bearings are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named turbine components.
8406.90.39Steam Turbine Trip Valve Block
Steam turbine trip valve blocks are manifold blocks housing emergency trip valves that rapidly cut steam supply for overspeed protection, mandatory safety components per ASME codes. These blocks are classified as 'other' parts under tariff item 8406.90.39, as they are not rotors, blades, or other specifically named turbine components.