PTFE Diaphragm Valve for Crystal Grower Fluid Control from Japan
A hand-operated diaphragm valve with PTFE (Teflon) body for corrosive chemical handling in Czochralski crystal pullers during silicon boule growth. Classified under HTS 8481.90.5000 as parts of other materials (plastics like PTFE) for hand-operated appliances in semiconductor processing.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Provide FDA or semiconductor-grade PTFE certification to confirm 'other materials' status
• Document end-use in wafer manufacturing to differentiate from general industrial valves