8481.80.30 - Of iron or steel

This HTS classification, 8481.80.30, specifically covers taps, cocks, valves, and similar appliances, including pressure-reducing and thermostatic valves, as well as their parts, that are primarily constructed from iron or steel. These articles are designed for controlling the flow of liquids or gases in various systems, such as pipelines, boilers, tanks, and vats. The "Of iron or steel" designation is critical, differentiating these from valves made of other metals or materials.

This category is a subdivision of "Other appliances," which encompasses a broad range of valves not specifically enumerated in earlier headings. It is distinguished from its sibling categories, 8481.80.10 (Of copper) and 8481.80.50 (Of other materials), based solely on the primary material of construction. Therefore, valves predominantly made of copper alloys or non-metallic substances would fall under those respective headings, while iron and steel valves are classified here.

The further subdivisions within this category, "Of iron" and "Of steel," allow for a more granular classification based on the specific ferrous alloy used. This distinction is important for trade statistics and can sometimes be relevant for specific import regulations or duties. Understanding this material-based breakdown is crucial for accurate tariff reporting.