8402.90.00.90/Boiler Safety Valve Mounting Block/Japan

Boiler Safety Valve Mounting Block from Japan

Machined steel block with valve seat for mounting ASME safety valves on steam boiler drums. HTS 8402.90.00.90 as critical safety component for pressure vessels.

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

• ASME Section I certification mandatory; include capacity certification

• Specify set pressure matching boiler MAWP (maximum allowable working pressure)

• Avoid bundling with valves to prevent control valve classification