Titanium Check Valve for Wafer Lapping Polishers from China
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 — China → United States
38%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
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