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8402.90.00/Steam Drum Assembly/Japan

Steam Drum Assembly from Japan

The steam drum separates steam from water in boiler circulation systems, essential for dry steam production in vapor generating boilers. Classified under HTS 8402.90.00 as a core pressure vessel component. Features internal baffles, dry pipes, and blowdown connections.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
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Import Tips

• Require ASME U-stamp certification; provide hydrotest documentation; confirm drum orientation compatibility with boiler design