Mechanical Seal for Multistage Liquid Pumps
A high-pressure mechanical seal assembly preventing leakage between pump shaft and casing in multistage liquid pumps. HTS 8413.91.90 applies as other pump parts for liquids, critical for high-head industrial applications like water boosting. Features carbon-ceramic faces for longevity.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general gasket/seal kits
Static gaskets or non-mechanical seals are under 8484 as machinery sealing materials.
If rubber diaphragm seals
Articles of rubber, even for pumps, default to Chapter 40 if material predominant.
If seals for vacuum/liquid ring pumps
Hybrid air-liquid pumps classify parts under 8414.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Include shaft diameter and pressure ratings in invoices to prove pump-specific design
• Test for API standards if for oilfield use; may affect valuation or additional duties
Related Products under HTS 8413.91.90
Magnetic Coupling for Sealless Pumps
Rare earth magnetic drive coupling transmitting torque across containment shell in sealless centrifugal pumps. HTS 8413.91.90 as liquid pump parts, eliminating shaft seals for hazardous chemicals. Zero leakage design.
Diffuser Bowl for Multistage Booster Pumps
Precision-machined stainless diffuser bowl stacking in multistage booster pumps for high-pressure water supply. HTS 8413.91.90 other pump parts, directing flow between impellers. Balances radial thrust.
Volute Liner for Slurry Pumps
Replaceable rubber or polyurethane volute liner protecting slurry pump casings from abrasive wear. Under HTS 8413.91.90 for other liquid pump parts, essential for mining/dredging. High elasticity absorbs impacts.
Cam Rotor for Gear Pumps
Precision-ground steel cam rotor meshing with idler gear in external gear pumps for oils/lubricants. HTS 8413.91.90 as other pump parts, providing positive displacement with minimal slip. Heat-treated for precision.
Adjustable Nozzle for Metering Pumps
Tungsten carbide adjustable discharge nozzle for precision metering pumps in water treatment. HTS 8413.91.90 as other liquid pump parts, controlling flow rate with micrometer adjustment. Wear-resistant tip.
Flexible Impeller for Handheld Bilge Pumps
Neoprene flexible impeller for self-priming handheld bilge pumps on boats. Classified HTS 8413.91.90 as parts of liquid pumps, conforming to casing for efficient water evacuation. Collapses for dry running.