Float-Level Regulator Valve for Wafer Processing Chemical Tanks from China
Self-operating float valve that automatically controls liquid levels in chemical reservoirs for wafer lapping and polishing processes. HTS 8481.80.9015 applies due to its self-regulating function for liquid level control in semiconductor wafer preparation equipment. Prevents overflow and maintains consistent slurry supply.
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
• Document chemical compatibility certifications for HF/acid resistance required for semiconductor classification support
• Distinguish from simple float valves by specifying automatic regulation mechanism in commercial invoices
• Avoid declaring as 'tank accessory' to prevent shift to 8481.80.9050 other appliances