Stainless Steel Ball Valve for Semiconductor Wafer Processing
A hand-operated stainless steel ball valve used in high-purity gas and liquid lines for semiconductor wafer manufacturing equipment, such as crystal growers. It falls under HTS 8481.90.5000 as a part of other materials for hand-operated valves in cleanroom environments. The 'other materials' refers to stainless steel, distinct from cast iron or steel specified elsewhere.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If automated or solenoid-operated
Automatically controlled valves fall under 8481.80, not hand-operated parts in 8481.90.
If made of cast iron
Cast iron valve parts are classified separately under 8481.90.1000, changing the material heading.
If integrated with pressure measurement for testing
Measuring and checking appliances like pressure regulators with sensors go to Chapter 90.
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Import Tips & Compliance
• Verify material certification (e.g
• 316L stainless steel) meets semiconductor purity standards to avoid reclassification
• Include detailed engineering drawings showing hand-operated design and compatibility with wafer equipment
Related Products under HTS 8481.90.50.00
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PTFE Diaphragm Valve for Crystal Grower Fluid Control
A hand-operated diaphragm valve with PTFE (Teflon) body for corrosive chemical handling in Czochralski crystal pullers during silicon boule growth. Classified under HTS 8481.90.5000 as parts of other materials (plastics like PTFE) for hand-operated appliances in semiconductor processing.
Ceramic Check Valve for Wafer Grinding Coolant Lines
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Titanium Needle Valve for Float Zone Crystal Pullers
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Hastelloy Check Valve for Crystal Grinder Coolant
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