Diaphragm Metering Pump

Reciprocating pump with a flexible diaphragm that displaces precise volumes of chemicals or liquids for dosing applications. Classified in 8413.50.00 due to its positive displacement mechanism via reciprocating diaphragm motion for liquid handling. Ideal for water treatment and chemical processing.

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.

8413.81.00Same rate: 35%

If fitted with integral measuring device

Pumps with built-in flow meters shift to other categories even if reciprocating.

8419.20.00Lower: 10% vs 35%

If for medical infusion applications

Medical-use metering pumps are classified under medical instruments.

9028.10.00Higher: 37.5% vs 35%

If sold primarily as a gas meter component

If principally used for gas metering, it falls under gas supply meters.

Not sure which classification is right?

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Import Tips & Compliance

Provide chemical compatibility certifications to support liquid pump classification

Declare exact stroke volume and flow rates to distinguish from centrifugal pumps

Comply with hazardous material labeling if designed for corrosive fluids

Related Products under HTS 8413.50.00

Brewery Transfer Piston Pump

Hygienic reciprocating piston pump for wort, beer, and syrup transfer in breweries. Meets food safety standards under 8413.50.00 for gentle handling of shear-sensitive liquids. Low shear design preserves product quality.

Hydraulic Piston Pump

A reciprocating positive displacement pump using pistons to move hydraulic fluid under high pressure for industrial machinery. It falls under HTS 8413.50.00 as it is designed for liquids and operates via reciprocating motion to displace fixed volumes per cycle. Commonly used in construction equipment and presses.

Plunger Pump for High Pressure Cleaning

Triplex plunger reciprocating pump delivering high-pressure water for industrial cleaning systems. It qualifies under HTS 8413.50.00 as a reciprocating positive displacement pump specifically for liquids. Used in pressure washers and surface cleaners.

Reciprocating Hand Pump for Fuel Transfer

Manual lever-operated reciprocating pump for transferring fuels and oils from drums. Falls under 8413.50.00 for its positive displacement action via reciprocating piston for liquid handling. Common in automotive workshops and agriculture.

Dosing Pump for Water Treatment

Electrically driven reciprocating piston pump for accurate chemical dosing in water purification systems. Classified as 8413.50.00 for reciprocating positive displacement of liquids in treatment processes. Features adjustable stroke for precise metering.

Bilge Reciprocating Pump

Compact reciprocating piston pump for removing bilge water from boats and ships. It is a positive displacement liquid pump under HTS 8413.50.00 due to its reciprocating mechanism. Self-priming design for marine applications.