Code 8481 40 · Heading 8481

Safety and relief valves for pipelines, boilers, tanks, vessels and similar containers

This code covers safety and relief valves used with pipelines, boilers, tanks, vessels and similar containers. The valve must be a safety or relief valve, rather than a pressure-regulating valve, check valve or another type of valve.

For example

Safety valve for a boiler
Relief valve for a storage tank
Safety valve for a pipeline

See the official tariff text

Official tariff text

Safety or relief valves

How we got to this code

XVI
84
8481
8481 40

Show the steps

The path to this code

Every code is reached through these choices, one level at a time.

Step 4 of 4

Step 1 · Section XVI Machinery and mechanical appliances; electrical equ…
Is the product a machine, apparatus or mechanical tool, or is it electrical equipment, a sound recorder or player, or a television image and sound recorder or player?
✓
Step 2 · Chapter 84 Nuclear reactors, boilers, machinery and mechanical… 1 of 2 chapters in section XVI
What is the machine, appliance or part specifically designed to do?
✓
Step 3 · Heading 8481 Taps, cocks, valves and similar appliances for pipe… 80 of 86 headings under chapter 84
What type of item is it: a pressure-regulating valve, a valve for oil-hydraulic or pneumatic transmissions, a check valve, a safety or relief valve, another tap, valve or similar fitting, or a part?
✓
Step 4 · Subheading 8481 40 Safety or relief valves 4 of 6 subheadings under heading 8481
Is the safety or relief valve made of cast iron or steel?

Pick the 8-digit code

Pick the description that best matches your product.

Import duty on the codes below: 2.2%

2 codes below this one

Compare the sibling codes

See all 6 codes at this level

Selling to Norway, Great Britain and the United States

What they charge on arrival.

Norway, Great Britain and the United States use their own tariff lines under the 6-digit HS code. The rates below are what their customs charge on goods arriving from the EU. Match the goods against each country's own wording before you rely on a rate.

Norway

Duty free

Their lines5 Norwegian lines

84.81.4010 Of cast iron

Norwegian tariff data checked Sept. 13, 2026.

Great Britain

2.0%

Their lines4 British lines
EU originDuty free

8481 40 10 50 For use in certain types of aircraft

Northern Ireland follows other rules.

UK tariff data checked Sept. 13, 2026.

United States

10.0%

Estimated from published US measures

Their lines1 US line
Entry dateSept. 17, 2026

8481.40.00.00 Taps, cocks, valves and similar appliances, for pipes, boiler shells, tanks, vats

The US importer of record files the entry.

US tariff data checked Sept. 16, 2026.

See the 5 Norwegian lines

Selling to Norway

Norway splits the 6-digit category its own way, so these are Norway's own lines under it, not this EU code. Check your product against their wording; what Norwegian customs charges is shown per line.

84.81.4010

Of cast iron

Ordinary duty

Duty free
84.81.4091

Of stainless steel or other alloy steel

Ordinary duty

Duty free
84.81.4092

Of other iron or steel

Ordinary duty

Duty free
84.81.4093

Of copper

Ordinary duty

Duty free
84.81.4099

Of other materials

Ordinary duty

Duty free

Norwegian tariff data version 1.5/1.2, last checked Sept. 13, 2026.

Contains data from Norwegian Customs (data.toll.no), licensed under CC BY 4.0, adapted for display.

See the 4 British lines

Selling to Great Britain

What UK customs charges when goods like these arrive in Great Britain.

All 4 UK lines under this code

They all have the same duty rates shown here.

Ordinary duty

2.0%

Goods of EU origin

Duty free You need documentation of EU preferential origin to use this rate.

These rates apply in Great Britain. Different rules may apply for goods entering Northern Ireland.

UK tariff data version v4.0.1599, last checked Sept. 13, 2026.

Contains public sector information licensed under the Open Government Licence v3.0.

Source: UK Department for Business and Trade (data.api.trade.gov.uk).

See the 1 US line

Selling to the United States

What US customs charges when goods like these arrive from the EU. The US importer of record files the entry and pays the duty.

8481.40.00.00

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, Safety or relief valves

General rate

2%

From the EU

10.0% Estimated from published US measures US headings applied: 9903.05.39 Section 301 forced-labour action, 91 FR 47318 (memorandum 91 FR 47717), U.S. note 52 to subchapter III of chapter 99

Worked out for an entry on Sept. 17, 2026.

US tariff schedule 2026HTSRev19, last checked Sept. 16, 2026.

Last change we recorded: Revision 19 (2026), Sept. 16, 2026.

Anti-dumping and countervailing duties, US import taxes and customs fees are not included.

The descriptions above are the US tariff texts, which the United States publishes in English only.

Source: the US International Trade Commission's Harmonized Tariff Schedule (hts.usitc.gov), public domain, and the measures published in the Federal Register.

This is a planning estimate from the US Harmonized Tariff Schedule (revision shown) and the published Federal Register measures as of the date shown, for a shipment of EU origin. It is not a customs entry, legal advice or a broker's opinion, and tariffs.help is not a US-licensed customs broker. The US importer of record or their broker confirms the classification, origin, value and the duty due before filing.

Duty rates shown here are estimates, read from official EU / Danish, Norwegian and UK tariff data for orientation only. Confirm the current rate with Toldstyrelsen, TARIC, Norwegian Customs or the UK Online Trade Tariff before you file. The rate you pay can also depend on the country of origin. These are base customs duties only: import VAT, excise duties, anti-dumping duties and safeguard or quota measures are not included.