Steam Generator Channel Head
Forged hemispherical head assembly connecting primary reactor coolant piping to steam generator tubes in PWRs. Classified as a nuclear reactor part under HTS 8401.40.00.00 because integral to the primary pressure boundary of the reactor coolant system.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for conventional steam generators/boilers
Non-nuclear steam generating equipment parts fall under boiler classifications.
If alloy steel forged components generally
General forged steel fittings without nuclear pressure ratings classify under tubes/pipes.
If heat exchanger specific classification
If emphasized as heat transfer equipment rather than pressure boundary.
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Import Tips & Compliance
• Require ASME N-stamp (nuclear certification) and provide hydrostatic test records
• Document primary-to-secondary pressure boundary integrity per 10 CFR 50 Appendix B
Related Products under HTS 8401.40.00.00
Nuclear Reactor Pressure Vessel
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 falls under HTS 8401.40.00.00 as a critical structural part of nuclear reactors, essential for maintaining high-pressure conditions and safety containment.
Reactor Core Shroud
A stainless steel cylindrical assembly surrounding the nuclear fuel assemblies in boiling water reactors (BWRs), directing coolant flow and providing radiation shielding. Classified under HTS 8401.40.00.00 as it is a specialized internal structural component unique to nuclear reactor design.
Nuclear Reactor Internals Upper Guide Structure
A lattice framework installed above the reactor core to align and guide control rods and fuel assemblies during refueling operations. Falls under HTS 8401.40.00.00 as reactor internals designed for precise positioning under irradiation conditions.
Reactor Vessel Head Penetration Adapter
Forged adapter forgings that provide pressure-tight seals for control rod drive mechanisms penetrating the reactor vessel head. Essential nuclear reactor part under HTS 8401.40.00.00 for maintaining vessel integrity.
Nuclear Fuel Assembly Flow Skirt
Bottom flow distributor attached to fuel assemblies ensuring proper coolant distribution across the core. Part of nuclear reactors under HTS 8401.40.00.00 when supplied as reactor replacement component.
Reactor Coolant Pump Casing
High-pressure casing housing the impeller of primary coolant circulation pumps in nuclear power plants. Falls under HTS 8401.40.00.00 as part of the reactor coolant pressure boundary system.