Steam Generator Channel Head
A steam generator channel head is a forged hemispherical head assembly that connects primary reactor coolant piping to steam generator tubes in pressurized water reactors (PWRs). It is integral to the primary pressure boundary and ensures safe coolant flow. This channel head is classified under tariff item 8401.40.00 as a part of nuclear reactors.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the channel head is imported as part of a steam generator
Steam generators and their parts are classified under heading 84.02, but reactor-specific components may fall under 8401.40.00.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide documentation showing the channel head is part of the primary pressure boundary and designed for a nuclear steam generator
• Ensure compliance with Canadian nuclear standards and include material certifications for the forged steel
Related Products under Tariff item 8401.40.00
Containment Penetration Sleeve
A containment penetration sleeve is a pressure-tight, seismic-qualified assembly that allows piping and cabling to pass through the reactor containment structure while maintaining the integrity of the containment barrier. It is an essential safety component of a nuclear reactor, as it ensures the containment remains leak-tight under normal and accident conditions. This sleeve is classified under tariff item 8401.40.00 as a part of nuclear reactors.
Control Rod Drive Mechanism Housing
A control rod drive mechanism housing is a pressure-tight enclosure that contains the mechanisms used to insert and withdraw control rods, thereby regulating the nuclear fission rate in a reactor. It is a critical component of the reactor's reactivity control system and is designed to withstand high pressures and temperatures. This housing is classified under tariff item 8401.40.00 as a part of nuclear reactors.
Core Support Barrel
A core support barrel is a cylindrical structure that positions the reactor core within the pressure vessel and directs coolant flow in pressurized water reactors (PWRs). It is a fundamental reactor internal that ensures proper core alignment and thermal-hydraulic performance. This barrel is classified under tariff item 8401.40.00 as a part of nuclear reactors.
Nuclear Fuel Assembly Flow Skirt
A nuclear fuel assembly flow skirt is a bottom flow distributor attached to fuel assemblies to ensure proper coolant distribution across the core. It is a reactor-specific component designed to optimize thermal-hydraulic performance and is supplied as a replacement part for nuclear reactors. This skirt is classified under tariff item 8401.40.00 as a part of nuclear reactors.
Nuclear Reactor Internals Upper Guide Structure
A nuclear reactor internals upper guide structure is a lattice framework installed above the reactor core to align and guide control rods and fuel assemblies during refueling operations. It is a critical reactor internal that ensures precise positioning and safe operation. This guide structure is classified under tariff item 8401.40.00 as a part of nuclear reactors.
Nuclear Reactor Pressure Vessel
A nuclear reactor pressure vessel is a massive cylindrical steel vessel designed to contain the reactor core, coolant, and heat generated during nuclear fission in a pressurized water reactor (PWR). It is a critical structural component that ensures the safe containment of the reactor. This vessel is classified under tariff item 8401.40.00 as a part of nuclear reactors.