Thermostatic Control Valve for Crystal Grower Temperature Regulation from Mexico
A self-operating thermostatic valve that regulates coolant flow to maintain exact temperatures in Czochralski crystal growers for silicon boule production. Classified under HTS 8481.80.9015 for its self-operating temperature control function in semiconductor material growth equipment. Ensures thermal stability critical for monocrystalline semiconductor purity.
Duty Rate — Mexico → United States
12%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide process flow diagrams showing temperature control application in semiconductor crystal growth to support classification
• Label as 'self-operating' explicitly; solenoid valves classify differently under 8481.80.1020