8413.50.00.10 - Oil well and oil field pumps

This HTS category, 8413.50.00.10, specifically encompasses oil well and oil field pumps that are designed for reciprocating positive displacement action. These pumps are integral to the extraction and transportation of crude oil and other petroleum products from underground reservoirs. They are characterized by their ability to move a fixed volume of fluid with each cycle of their piston or plunger mechanism, making them suitable for the demanding and often high-pressure environments of oil extraction operations.

Distinguishing this category from its sibling, 8413.50.00.50 (Diaphragm pumps), is the fundamental difference in their pumping mechanism. While diaphragm pumps utilize a flexible diaphragm to move fluid, the pumps classified here rely on the back-and-forth motion of a piston or plunger within a cylinder. This distinction is crucial for accurate classification, as the operational principles and typical applications can vary significantly.

As this is a leaf node, there are no further subcategories within 8413.50.00.10. Therefore, the classification hinges on whether a reciprocating positive displacement pump's primary application is within the oil well and oil field sector. Key considerations for classification include the pump's design, intended use, and the specific operational context where it is employed.