Acetylene Generator Drum Seal Assembly

Sealing mechanism for calcium carbide drums in acetylene generators to control water reaction rate. Classified as a part of acetylene water process gas generators under HTS 8405.90.00.00.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8419.89.95Higher: 39.2% vs 35%

If for laboratory-scale chemical reactors

Lab equipment parts go to Chapter 84 for dryers/reactors.

3926.90.99Lower: 22.8% vs 35%

If plastic drum seals sold separately

Plastic components classify by material in Chapter 39.

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

• Safety certifications for hazardous gas handling required; detail seal material compatibility with carbide residue; pitfall: chemical reactor part misclassification