8413.81.00 - Pumps

HTS Code 8413.81.00 encompasses "Other pumps" within the broader category of pumps for liquids. This classification is designed to capture a wide range of pumping devices for moving liquids that are not specifically classified under other subheadings within 8413. This includes pumps that operate on principles other than those specifically detailed in related categories, such as turbine pumps or those integrated into household water systems.

Distinguishing this category from its sibling, 8413.82.00.00, is crucial. While 8413.82.00.00 is reserved for "Liquid elevators," which are devices designed to raise liquids by mechanical means without employing a pump, 8413.81.00.00 strictly pertains to pumps themselves. Therefore, if a device utilizes impellers, pistons, diaphragms, or other pumping mechanisms to impart kinetic energy to a liquid and move it, it falls under 8413.81.00.

The subcategories under 8413.81.00 provide further refinement. 8413.81.00.20 specifically addresses "Turbine pumps," characterized by their rotating impellers. 8413.81.00.30 covers "Household water systems, self-contained; and windmill pumps," recognizing integrated domestic water supply units and pumps powered by wind. Finally, 8413.81.00.40 serves as a residual category for all other pumps for liquids not elsewhere specified within this heading, ensuring comprehensive coverage of diverse pumping technologies.