Semiconductor Wafer Processing Pressure Regulator Valve from Japan
A precision pressure-reducing valve designed specifically for controlling gas flow in semiconductor wafer processing equipment, such as crystal growers and pullers. It falls under HTS 8481.90.9040 as a part of valves from subheading 8481.20, optimized for high-purity environments in monocrystalline semiconductor boule production using Czochralski methods.
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
• Verify the valve is explicitly for 8481.20 valves via manufacturer specs to avoid reclassification to general parts
• Provide end-use certificates proving semiconductor fabrication application for potential duty reductions
• Ensure cleanliness certifications (e.g
• particle-free) to meet cleanroom import standards and avoid contamination holds