Hand-Turned Diaphragm Valve for Wafer Lapping Slurry from Japan
Brass hand-turned diaphragm valve for metering abrasive slurry in wafer lapping and polishing equipment, critical for flatness in semiconductor wafer preparation. Classified under HTS 8481.80.5090 for other hand-operated valves of non-steel materials.
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 slurry compatibility test data (e.g
• for silica or alumina) to support semiconductor end-use claims
• Label with maximum pressure and temperature ratings to comply with ASME B16 standards for customs
• Avoid reclassification by specifying 'diaphragm type' distinctly from ball or gate in entry docs