8413.60.00 - Other rotary positive displacement pumps

HTS code 8413.60.00 encompasses a broad range of rotary positive displacement pumps that are not specifically classified elsewhere. This includes pumps that operate by rotating elements, such as gears, vanes, or screws, to trap and move liquid. These pumps are characterized by their ability to deliver a consistent flow rate irrespective of discharge pressure, making them suitable for applications requiring precise metering or handling of viscous fluids. Examples include gear pumps, vane pumps, and screw pumps when not designed for specific engine lubrication or cooling functions, or used as concrete pumps.

This category is distinguished from other pumps primarily by its exclusion of specific types. It does not include pumps fitted with a measuring device (8413.11 and 8413.19), hand pumps (8413.20), pumps specifically for internal combustion engines (8413.30), concrete pumps (8413.40), or reciprocating positive displacement pumps (8413.50). Therefore, classification under 8413.60.00 requires careful consideration of the pump's operational mechanism and intended use to ensure it does not fall into a more specific heading.

Within this broad classification, further subcategories exist to refine the classification. One key subdivision pertains to "Hydraulic fluid power pumps," which specifically covers rotary positive displacement pumps designed to generate fluid power for hydraulic systems. Another significant grouping is "Other," which serves as a residual category for all other rotary positive displacement pumps not specifically designated as hydraulic fluid power pumps, ensuring comprehensive coverage for this type of machinery.