Electro-Hydraulic Needle Valve for Wafer Polishing Slurry Lines from China
Needle valve with electro-hydraulic actuator precisely meters abrasive slurry flow to wafer polishers achieving nanometer flatness. Classified under HTS 8481.80.9025 as electro-hydraulic actuated valve for semiconductor wafer finishing.
Duty Rate — China → United States
37%
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
• Calibrate and certify flow accuracy to ±1% for process qualification
• Include particle shedding test results for slurry service validation
• Declare hydraulic fluid compatibility to prevent hazardous material flags