Pneumatic Diaphragm Valve for Gas Delivery in Crystal Pullers from Japan
Diaphragm valve with pneumatic actuator for controlling process gases in Czochralski crystal pullers during monocrystalline silicon boule production. Classified in HTS 8481.80.9040 for other pneumatic actuated valves used in semiconductor material growth equipment. Provides zero-dead-volume flow control essential for purity.
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
• Provide evidence of semiconductor end-use for potential duty relief; test pneumatic actuators for leak rates <10^-9 sccs He; label with Cv values and pressure ratings