Pressure Regulator Valve for Float Zone Crystal Puller from Japan
Self-operating valve maintains inert gas pressure in float zone crystal pullers for high-purity silicon production. HTS 8481.80.9015 classification for pressure control in semiconductor crystal growing equipment using float zone method. Prevents contamination during monocrystalline boule formation.
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
• Certify compatibility with argon/hydrogen mixtures used in float zone processes
• Demonstrate self-operation via no-external-power requirement in technical data sheets