Copper High-Pressure Check Valve for Semiconductor Wafer Processing from Japan
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 — 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
• 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