Cryogenic Service Mechanical Seal
> A mechanical seal with perfluoroelastomer seals designed for LNG pump applications at -160°C. It prevents boil-off in cryogenic fluids by maintaining a tight seal under extreme cold conditions. This product is classified under tariff item 8484.20.00 as a mechanical seal, which is essential for cryogenic service.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
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 imported with gaskets
Gaskets and similar joints are classified under this heading.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• > Provide cryogenic test certificates to prove suitability for low-temperature service
• Ensure compliance with Canadian transportation of dangerous goods regulations if shipping with residual fluids
• Declare the seal’s material composition for accurate tariff classification
Related Products under Tariff item 8484.20.00
API 682 Compliant Mechanical Seal
> A pressurized dual mechanical seal designed to meet API 682 standards for refinery pump applications. It ensures emission control in volatile service by providing a robust sealing solution between rotating and stationary faces. This product falls under tariff item 8484.20.00 as a mechanical seal, which is essential for preventing leaks in demanding industrial environments.
Bellows Mechanical Seal
> A bellows mechanical seal using metal or elastomeric bellows to provide axial movement for sealing in agitators and mixers. It uses mechanical faces with bellows for pressure compensation, making it suitable for corrosive environments. This product is classified under tariff item 8484.20.00 as a mechanical seal, which is designed to prevent fluid leakage in rotating equipment.
Cartridge Type Mechanical Seal
> A pre-assembled cartridge mechanical seal that installs as a single unit onto pump shafts, simplifying maintenance in chemical processing equipment. It provides a mechanical sealing action using spring-loaded faces to prevent leaks. This product falls under tariff item 8484.20.00 as a mechanical seal, which is a critical component for pump reliability.
Crystal Puller Rotary Mechanical Seal
> A rotary mechanical seal for Czochralski crystal puller rotation mechanisms in silicon boule production. It withstands high vacuum and temperature cycles, ensuring a reliable seal in semiconductor manufacturing. This product falls under tariff item 8484.20.00 as a mechanical seal, which is critical for crystal growth equipment.
Double Mechanical Seal Arrangement
> A tandem or back-to-back double mechanical seal with barrier fluid provisions for hazardous fluid handling in petrochemical pumps. It provides redundancy by using dual faces to prevent leaks. This product is classified under tariff item 8484.20.00 as a mechanical seal, which is designed for high-risk applications.
Gallium Arsenide Wafer Polisher Seal
> A mechanical seal for chemical mechanical polishing (CMP) of gallium arsenide compound semiconductor wafers. It uses alkaline slurries for polishing, requiring a seal that resists corrosive chemicals. This product falls under tariff item 8484.20.00 as a mechanical seal, which is essential for wafer preparation equipment.