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%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify bakeout temperature ratings (>200°C) to prove semiconductor fab suitability
• Pair with pump model affidavits for binding ruling requests if uncertain