8413.70.20.04 - Submersible pumps

This HTS category, 8413.70.20.04, specifically covers submersible pumps. These are centrifugal pumps designed to operate fully submerged in the liquid they are intended to move. This submergence is a key defining characteristic, differentiating them from other types of centrifugal pumps which are typically installed above the liquid level. The submersible design is crucial for applications where priming is difficult or impossible, such as in wells, sumps, or for dewatering purposes.

While the broader category encompasses "Other centrifugal pumps," this specific subcategory isolates those centrifugal pumps that are inherently designed for submersion. This distinction is vital for accurate classification, ensuring that pumps meant to be installed outside the fluid are not incorrectly classified with those that must operate within it. The category functions as a "leaf node," meaning there are no further subdivisions. Therefore, classification within 8413.70.20.04 depends on meeting the criteria of being a centrifugal pump intended for submersible operation.