Air-Operated Double Diaphragm Pump

An air-operated double diaphragm pump uses compressed air to drive two flexible diaphragms, creating reciprocating motion for pumping liquids without internal moving parts contacting the fluid. It falls under HTS 8413.50.0050 as a diaphragm pump, a type of reciprocating positive displacement pump designed for handling corrosive or abrasive liquids in industrial applications.

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.

8413.91.90Same rate: 35%

If imported as replacement parts only

Diaphragms or pump heads classified separately as parts of pumps, not complete units.

8479.89.95Higher: 37.5% vs 35%

If integrated into semiconductor wafer processing machine

Machines for semiconductor manufacture classified in Chapter 84 heading 8479, not as standalone pumps.

9026.10.60.00Lower: 17.5% vs 35%

If fitted with integral liquid metering device

Pumps with built-in measuring devices for liquids fall under Chapter 90 instruments.

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Import Tips & Compliance

Verify pump displacement capacity and material construction (e.g

PVDF, stainless steel) match declared specifications to avoid reclassification

Provide detailed technical specs including max pressure and flow rate; ensure CE or ATEX certification for hazardous location use