Chapter 84 · Machinery and mechanical appliances; computers · Section 16

HS Code 8481.30

Check (nonreturn) valves

Heading 8481: Taps, cocks, valves and similar appliances, for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves; parts thereof

US duty (general)
3% - 5%
US HTS lines
3
EU CN codes
3
UK commodity codes
10
Unit
No., kg

US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources

United States - HTS lines under 8481.30

Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.

HTS codeDescriptionGeneralSpecialOtherUnit
8481.30.10 Of copper
2 statistical lines (10-digit)
  • 8481.30.10.10 - Having a pressure rating under 850 kPa
  • 8481.30.10.90 - Having a pressure rating of 850 kPa or over
3% Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 45% No., kg
8481.30.20 Of copper >
Of iron or steel
2 statistical lines (10-digit)
  • 8481.30.20.10 - Of iron
  • 8481.30.20.90 - Of steel
5% Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 45% No., kg
8481.30.90 Of iron or steel >
Other
3% Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) 45% No., kg

Estimate the US duty runs in your browser · no caps

Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.

European Union - CN codes under 8481.30

Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.

CN codeDescription
8481 30 99 Other EU duty (TARIC) →
8481 30 91 Of cast iron or of steel EU duty (TARIC) →
8481 30 00 Check (non-return) valves EU duty (TARIC) →

United Kingdom - commodity codes under 8481.30

Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.

Commodity codeDescription
8481 30 00 00 Check (non-return) valves UK duty & VAT →
8481 30 91 00 Of cast iron or of steel UK duty & VAT →
8481 30 91 20 For use in certain types of aircraft UK duty & VAT →
8481 30 91 30 Mechanical check (non-return) valve for opening and closing of the flow of fuel: -with an operating pressure of not more than 250 MPa, -with a flow rate of 45 cm³/minute or more, but not more than 55 cm³/minute, -with 4 input holes, each of them with a diameter of 1,2 mm or more, but not more than 1,6 mm, -made of steel UK duty & VAT →
8481 30 91 91 Steel check (non-return) valves with:<br> <br><br><br>- an opening pressure of not more than 800 kPa<br> <br><br><br>- an external diameter not more than 37 mm<br> UK duty & VAT →
8481 30 91 99 Other UK duty & VAT →
8481 30 99 00 Other UK duty & VAT →
8481 30 99 20 For use in certain types of aircraft UK duty & VAT →
8481 30 99 50 Mechanical check (non-return) valve for opening and closing of the flow of fuel: -with an operating pressure of not more than 250 MPa, -with a flow rate of 45 cm³/minute or more, but not more than 55 cm³/minute, -with 4 input holes, each of them with a diameter of 1,2 mm or more, but not more than 1,6 mm, -made of steel UK duty & VAT →
8481 30 99 90 Other UK duty & VAT →
Not a customs ruling. Classification is determined by the importing country's customs authority and depends on the exact product. This page is reference information from official published schedules, not legal advice. For a binding decision, request a ruling (US: CBP CROSS · UK: HMRC ATaR · EU: BTI).

Other subheadings in 8481

Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.