HS Code for Gear pump

The classification of gear pumps under HS code 8413.60 is determined by the General Rules of Interpretation (GRI), specifically GRI 1 and 6. Heading 8413 covers pumps for liquids, and subheading 8413.60 specifically addresses rotary positive displacement pumps. A gear pump operates by using the meshing of gears to pump fluid by displacement. As the gears rotate, they separate on the intake side of the pump, creating a void and suction which is filled by fluid. The fluid is then carried by the gears to the discharge side of the pump, where the meshing of the gears displaces the fluid. Because this mechanism is inherently rotary and relies on positive displacement rather than centrifugal force, it falls squarely within this classification. This code is used for pumps that are not specifically designed for internal combustion engines and are not centrifugal pumps. The classification remains consistent regardless of whether the pump is an external gear pump, where two identical gears mesh with each other, or an internal gear pump, which uses a rotor and an idler gear. The material of construction, whether cast iron, stainless steel, or specialized alloys, does not typically change the primary heading, provided the device remains a rotary positive displacement pump for liquids.

Products Included

• External gear pumps for hydraulic systems
• Internal gear pumps for high-viscosity fluids
• Helical gear pumps for quiet operation
• Lobe pumps (often classified here as rotary displacement)
• Gear-driven metering pumps for chemical processing

Common Misclassification

Gear pumps are frequently misclassified under HS code 8413.30, which is reserved for fuel, lubricating, or cooling medium pumps for internal combustion engines. If the pump is integrated into an engine system, 8413.30 is correct; however, general-purpose industrial gear pumps must stay in 8413.60. Another common error is using 8413.70, which is for centrifugal pumps; these operate on a completely different physical principle (velocity rather than displacement).

FAQ

What is the HS code for gear pump?

The standard international HS code for a rotary positive displacement gear pump for liquids is 8413.60.

Does this code include hydraulic power pumps?

Yes, many hydraulic gear pumps are classified under 8413.60, although some specific hydraulic power units might be classified under 8412 depending on their configuration.