Stainless Steel Plug Valve for Crystal Grinder Vacuum Lines
Steel plug component for hand-operated valves isolating vacuum in crystal grinders shaping semiconductor boule flats for conductivity indication. HTS 8481.90.3000 for such precision steel parts. Vital for resistivity control.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If motorized plug valves
Excludes hand-operated; other control valves have separate provisions.
If flanged steel fittings
Plug-like fittings without valve actuation classify as pipe fittings.
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Import Tips & Compliance
• Vacuum bake-out certification required; OEM interchangeability proof; avoid lab equipment classification
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