HS Code 8404
Boiler Auxiliary Plants and Condensers
HS code 8404 is for auxiliary plant used with boilers of 8402 or 8403, including economisers, super-heaters, and steam condensers.
4-digit Section XVIFCL
HS Code 8404 — Boiler Auxiliary Plants and Condensers
This code covers secondary equipment that improves the efficiency or operation of boilers, such as economisers and super-heaters. It also includes condensers used in steam power units.
What's included
- Fuel economisers
- Super-heaters
- Soot removers
- Gas recoverers
- Steam condensers
What's excluded
- Water softeners → use
8421(Water filtering or purifying apps are in 8421.)
Common examples
- Economiser for industrial boiler
- Surface condenser for steam turbine
- Soot blower for boiler tubes
- Steam accumulator
- Convection super-heater
Frequently asked questions
What is an economiser?
It is a heat exchanger that captures waste heat from exhaust gases to pre-heat boiler feed water, improving efficiency.
Trade & shipping notes
- Typical duty range: 0% - 5%
- Documentation: Pressure tests and material certificates are frequently requested by customs in major industrial zones.
- Typical shipping mode: FCL
- Top exporters: China, South Korea, Japan
- Top importers: India, USA, Germany
Related HS codes
Key takeaway
Used for equipment that supports and enhances industrial boiler performance.
Related HS codes
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