Float Zone Crystal Puller Butterfly Valve from Mexico
Precision hand-operated cast iron butterfly valve for float zone crystal growers producing high-purity silicon wafers, under HTS 8481.80.3030 per statistical note (a)(i). Regulates process gases during zone refining. Vacuum-rated construction.
Duty Rate — Mexico → United States
15.6%
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
• Reference statistical note (a)(i) crystal pullers explicitly; include vacuum specs and gas compatibility certs
• Distinguish from atmospheric pressure valves