Of other materials
Taps, cocks, valves and similar appliances, for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves; parts thereof: > Other appliances: > Hand operated: > Of other materials
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Subheadings
Products classified under HTS 8481.80.50
Brass Ball Valve for Semiconductor Wafer Processing
A hand-operated brass ball valve designed for controlling gas flow in crystal growers and pullers used to produce monocrystalline semiconductor boules via Czochralski method. Made of brass (other material per 8481.80.50), it features precision sealing for ultra-pure environments in wafer manufacturing equipment. Classified here as a hand-operated valve for pipes in semiconductor processing apparatus.
PTFE Diaphragm Valve for Wafer Grinding Equipment
Hand-operated diaphragm valve with PTFE body for slurry control in crystal grinders that shape semiconductor boules to precise wafer diameters. The fluoropolymer material ensures chemical resistance in abrasive processing. Classified in 8481.80.50 as hand-operated valve of plastic/other materials for wafer preparation apparatus.
Titanium Check Valve for Wafer Lapping Polishers
Hand-operated titanium check valve preventing backflow in polishing slurry lines of wafer grinders, lappers, and polishers that achieve critical surface flatness for semiconductor fabrication. Titanium's biocompatibility suits ultra-clean processing. Classifies under 8481.80.50 as other material hand-operated valve despite check function.
Hastelloy Plug Valve for Crystal Boule Grinding Coolant
Corrosion-resistant hand-operated Hastelloy plug valve for coolant control in crystal grinders shaping semiconductor boules with conductivity flats. Hastelloy withstands aggressive grinding fluids in wafer prep equipment. HTS 8481.80.50 for other material hand valves in semiconductor apparatus.
Stainless Steel Needle Valve for Float Zone Crystal Pullers
Precision hand-operated stainless steel needle valve for fine flow control of inert gases in float zone crystal pullers producing semiconductor boules. The stainless steel construction provides corrosion resistance in high-purity wafer manufacturing environments. Falls under 8481.80.50 as a hand-operated valve of other materials for semiconductor processing equipment.
Aluminum Gate Valve for Wafer Slicing Saw Coolant Lines
Hand-operated aluminum gate valve controlling coolant flow in wafer slicing saws that cut semiconductor wafers from monocrystalline boules. Lightweight aluminum construction suits precision semiconductor fabrication equipment. HTS 8481.80.50 covers this hand-operated valve of other (non-iron/steel) materials.
PVDF Butterfly Valve for Wafer Polishing Slurry Tanks
Hand-operated PVDF (Kynar) butterfly valve regulating slurry flow to tanks in wafer polishers achieving nanometer flatness for semiconductor devices. Plastic construction prevents contamination. Classifies 8481.80.50 as hand-operated valve of other materials for wafer processing vats.