NIBCO Chemtrol BK4 Ball Valve from Japan
A 1/4 inch CPVC-compatible bronze ball valve for corrosive environments, 1000 psi rating, quarter-turn operation. Classified in 8481.80.10.85 as a high-pressure, hand-operated copper ball valve for chemical processing pipes and tanks.
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%
Import Tips
• Chemical compatibility statements aid FDA/USDA compliance for process industry imports
• High-pressure proof testing records prevent reclassification to lower-duty headings
• Watch for OEM part numbers—mismatched specs lead to valuation disputes