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Acetylene Generator Safety Relief Valve

Pressure relief valve calibrated for acetylene generator overpressure protection during water-carbide reactions. Safety-critical part under HTS 8405.90.00.00.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+37.5%37.5%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

8481.40.00.00Higher: 39.5% vs 37.5%

If general safety valves for pressure vessels

Non-specific relief valves under Chapter 84 tap/valve headings.

9026.10.60.00Lower: 20% vs 37.5%

If with electronic pressure indicating features

Instrument-integrated valves shift to Chapter 90.

Not sure which classification is right?

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Import Tips & Compliance

• ASME or equivalent pressure certifications mandatory; set pressure documentation; dual-use with chemical plant valves possible pitfall