High Vacuum Pump Bellows Valve from Mexico
Bellows-sealed isolation valves control gas flow in vacuum pump inlet manifolds for semiconductor wafer grinders. HTS 8414.90.91.40 covers it as a part of vacuum pumps in wafer preparation equipment. Ensures all-metal, bakeable seals for UHV conditions.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify bakeout temperature ratings (>200°C) to prove semiconductor fab suitability
• Pair with pump model affidavits for binding ruling requests if uncertain