Float Zone Crystal Puller Butterfly Valve from Japan
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 — 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
• Reference statistical note (a)(i) crystal pullers explicitly; include vacuum specs and gas compatibility certs
• Distinguish from atmospheric pressure valves