Titanium Check Valve for Wafer Lapping Polishers from Japan
Hand-operated titanium check valve preventing backflow in polishing slurry lines of wafer grinders, lappers, and polishers that achieve critical surface flatness for semiconductor fabrication. Titanium's biocompatibility suits ultra-clean processing. Classifies under 8481.80.50 as other material hand-operated valve despite check function.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Submit titanium alloy specifications confirming suitability for semiconductor slurries
• Include cleanroom certification and leak test results for customs validation
• Distinguish from pure check valves by documenting hand-operation capability