Chapter 84: Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

HTS heading 8481: Taps, cocks, valves and similar appliances, for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and therm…

74 numbered lines under heading 8481, including 61 10-digit statistical lines. The first six digits are the international HS subheading; the general column is the normal US duty rate.

HTS heading 8481
HTS codeDescriptionUnitGeneralSpecialColumn 2
8481Taps, cocks, valves and similar appliances, for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves; parts thereof:
8481.10.00Pressure-reducing valves2%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
8481.10.00.20Hydraulic fluid power typeNo., kg
Pneumatic fluid power type:
8481.10.00.40Filter-regulators and filter-regulator-lubricatorsNo., kg
8481.10.00.60OtherNo., kg
8481.10.00.90OtherNo., kg
8481.20.00Valves for oleohydraulic or pneumatic transmissions2%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
Hydraulic valves:
Directional control
8481.20.00.10Manual typeNo., kg
8481.20.00.20Solenoid typeNo., kg
8481.20.00.30OtherNo., kg
8481.20.00.40Flow control typeNo., kg
8481.20.00.50OtherNo., kg
Other:
Directional control:
8481.20.00.60Solenoid typeNo., kg
8481.20.00.70OtherNo., kg
8481.20.00.80OtherNo., kg
8481.30Check (nonreturn) valves:
8481.30.10Of copper3%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8481.30.10.10Having a pressure rating under 850 kPaNo., kg
8481.30.10.90Having a pressure rating of 850 kPa or overNo., kg
8481.30.20Of iron or steel5%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8481.30.20.10Of ironNo., kg
8481.30.20.90Of steelNo., kg
8481.30.90.00OtherNo., kg3%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8481.40.00.00Safety or relief valvesNo., kg2%Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
8481.80Other appliances:
Hand operated:
8481.80.10Of copper4%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)47%
Having a pressure rating under 850 kPa:
8481.80.10.20Bath and shower faucetsNo., kg
8481.80.10.30Sink and lavatory faucetsNo., kg
8481.80.10.40Supply stopsNo., kg
8481.80.10.50OtherNo., kg
Having a pressure rating of 850 kPa or over:
8481.80.10.60Gate typeNo., kg
8481.80.10.70Globe typeNo., kg
8481.80.10.75Plug typeNo., kg
8481.80.10.85Ball typeNo., kg
8481.80.10.90Butterfly typeNo., kg
8481.80.10.95OtherNo., kg
8481.80.30Of iron or steel5.6%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)2.8% (JP)45%
Of iron:
8481.80.30.10Gate typeNo., kg
8481.80.30.15Globe typeNo., kg
8481.80.30.20Plug typeNo., kg
8481.80.30.25Ball typeNo., kg
8481.80.30.30Butterfly typeNo., kg
8481.80.30.40OtherNo., kg
Of steel:
8481.80.30.55Gate typeNo., kg
8481.80.30.60Globe typeNo., kg
8481.80.30.65Plug typeNo., kg
8481.80.30.70Ball typeNo., kg
8481.80.30.75Butterfly typeNo., kg
8481.80.30.90OtherNo., kg
8481.80.50Of other materials3%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8481.80.50.40Pressure spray can valvesNo., kg
8481.80.50.60Bath, shower, sink and lavatory faucetsNo., kg
8481.80.50.90OtherNo., kg
8481.80.90Other2%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)35%
8481.80.90.05Solenoid valvesNo.
8481.80.90.10Ballcock mechanismsNo.
8481.80.90.15Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid levelNo.
Other:
With electrical or electro-hydraulic actuators:
8481.80.90.20Control valves designed for proportional operation by a signal from a control deviceNo.
8481.80.90.25OtherNo.
8481.80.90.30With hydraulic actuatorsNo.
With pneumatic actuators:
8481.80.90.35Control valves designed for proportional operation by a signal from a control deviceNo.
8481.80.90.40OtherNo.
8481.80.90.45With thermostatic actuatorsNo.
8481.80.90.50OtherNo.
8481.90Parts:
Of hand operated and check appliances:
8481.90.10.00Of copperkg3%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)47%
8481.90.30.00Of iron or steelkg5%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8481.90.50.00Of other materialskg3%Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)45%
8481.90.90OtherFree35%
Of valves of subheading 8481.20:
8481.90.90.20Valve bodieskg
8481.90.90.40Otherkg
Other:
8481.90.90.60Valve bodieskg
Other:
8481.90.90.81Steel forgingskg
8481.90.90.85Otherkg

Statistical (10-digit) lines without a rate use the rate of the 8-digit line above them. Additional duties such as Section 301 and Section 232 may apply; check them with the tariff checker.

Source: Harmonized Tariff Schedule of the United States, 2026 HTS Revision 20 (effective 2026-09-28), U.S. International Trade Commission (hts.usitc.gov), imported 2026-10-07. Reference only; not legal or customs advice or a binding classification. Additional duties under Chapter 99 may apply. ShipWave is not affiliated with the USITC or U.S. Customs and Border Protection.