Copper High-Pressure Check Valve for Semiconductor Wafer Processing from United States
A copper high-pressure check valve preventing backflow in gas lines used in semiconductor wafer preparation equipment, such as crystal grinders and polishers. With a pressure rating exceeding 850 kPa, it ensures process integrity. Classified under tariff item 8481.30.00 as a copper check valve.
Duty Rate — United States → Canada
0%
Import Tips
• Maintain records of the valve's pressure rating and material composition for CBSA verification
• If the valve is imported with other semiconductor equipment, consider whether it should be classified separately or as part of a system
• Ensure the copper alloy is clearly stated on the packing list