Electro-Pneumatic Control Valve for Crystal Puller Systems from Canada
An electro-pneumatic valve with electrical actuator manages inert gas flow in Czochralski crystal pullers used to grow monocrystalline silicon boules for semiconductor wafers. Classified under HTS 8481.80.9025 due to its electrical actuation and application in semiconductor material processing equipment.
Duty Rate — Canada → United States
12%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Provide evidence of compatibility with ultra-pure gases and pressure specifications to confirm semiconductor-specific use
• Ensure FDA or equivalent cleanroom certifications for valves contacting process fluids in wafer production
• Avoid common pitfalls by declaring actuator type accurately to prevent reclassification as manual valves