Hand-Operated Steel Plug Valve for Crystal Puller Gas Lines
Steel plug cock designed for manual operation in Czochralski crystal puller systems during monocrystalline silicon boule production. Classified under HTS 8481.80.3065 for its steel construction and plug-type mechanism in semiconductor processing. Provides reliable isolation of process gases like argon.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If gate type instead of plug type
Gate valves for similar steel hand-operated applications use separate subheading 8481.80.3060.
If imported as replacement part for existing equipment
Parts of semiconductor valves classified in 8481.90.90 rather than complete appliances.
If for use in semiconductor heat exchangers or chillers
Valves integral to semiconductor lab equipment like chillers go under Chapter 84 machinery parts.
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Import Tips & Compliance
• Provide SEMI-standard certifications and cleanroom compatibility docs to support classification
• Label clearly as 'semiconductor processing valve' to prevent misclassification as general plumbing
• Watch for customs requiring proof of hand-operation; include operator manual excerpts
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