Forged Steel Butterfly Valve Disc Forging
Rough-forged disc for butterfly valves controlling airflow in crystal boule grinders for semiconductor wafer prep. Fits HTS 8481.90.90.81 as steel valve part forging. Withstands rapid throttling in process gases.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If of aluminum or zinc
Non-ferrous valve parts separated from steel in other 8481.90 subs.
If solely for wafer manufacturing machines
Semi-specific parts in 8431 per notes, if proven exclusive use.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Document disc shaft hole outlines as valve-specific to avoid generic classification
• Monitor weight declarations; heavy forgings may trigger valuation scrutiny
Related Products under HTS 8481.90.90.81
Forged Steel Ball Valve Body
A forged steel housing for ball valves used in high-pressure pipeline systems, including those in semiconductor wafer processing equipment for gas flow control. Classified under HTS 8481.90.90.81 as a steel forging part of valves, not further machined beyond basic forming. It ensures durability under extreme pressures and temperatures typical in industrial fluid control.
Forged Stainless Steel Gate Valve Bonnet
A stainless steel forged bonnet component for gate valves in chemical processing lines, including those handling gases in crystal grower systems for semiconductor production. Falls under HTS 8481.90.90.81 as an unmachined steel forging dedicated to valve pressure containment. Its forged construction provides superior strength for high-purity environments.
Forged Steel Check Valve Body
Rough-forged steel body for check valves preventing backflow in fluid systems of wafer slicing saw coolant lines during semiconductor fabrication. HTS 8481.90.90.81 applies to this steel forging as a valve part prior to finishing operations. Designed for corrosion resistance in wet processing environments.
Forged Steel Diaphragm Valve Body
Forged steel body for diaphragm valves used in corrosive slurry lines of wafer grinders in semiconductor manufacturing. HTS 8481.90.90.81 covers this as a steel forging valve part. Ideal for isolating media in polishing processes.
Forged Alloy Steel Pressure Regulator Housing
Alloy steel forging serving as the main housing for pressure-reducing valves in gas delivery systems for float zone crystal pullers in semiconductor boule production. Classified in 8481.90.90.81 as a steel forging part of pressure-reducing valves. Provides structural integrity for precise pressure control.
Forged Steel Thermostatic Valve Stem Forging
Steel forging shaped as the stem for thermostatically controlled valves regulating temperature in wafer lapping machines for semiconductor preparation. Under HTS 8481.90.90.81 as an unmachined part of such valves. Ensures reliable linear motion in thermal environments.