Czochralski Crystal Puller Compressor Valve from Germany
This precision compressor valve is a critical part of the gas delivery system in Czochralski crystal pullers used for growing monocrystalline silicon boules in semiconductor manufacturing. It regulates high-purity argon or nitrogen flow under vacuum conditions to prevent contamination during crystal growth. Classified under 8414.90.41.55 as a part of hermetic compressors in subheading 8414.40 for semiconductor wafer production equipment.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Verify the part is specifically for 8414.40 hermetic compressors used in semiconductor equipment via manufacturer specs and end-use certification
• Include detailed technical drawings and bills of materials showing compatibility with crystal growers to avoid reclassification