Copper High-Pressure Check Valve for Semiconductor Wafer Processing from China
This copper check valve prevents backflow in high-pressure gas lines used in semiconductor wafer preparation equipment, such as crystal grinders and polishers, with a pressure rating exceeding 850 kPa. It falls under HTS 8481.30.10.90 due to its copper construction and high-pressure capability designed for industrial fluid control in precise manufacturing processes.
Duty Rate — China → United States
40.5%
Rate breakdown
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)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify pressure rating certification from manufacturer to meet 850 kPa threshold; ensure copper alloy composition documentation for HTS compliance; test for semiconductor cleanroom compatibility to avoid contamination issues