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.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If polished or machined but not silver-plated
Surface-finished steel valve parts shift from forgings to 8481.90.40 subheading.
If configured as threaded pipe fitting rather than valve body
Fittings of steel for tubes/pipes classified by function in Chapter 73, not as valve parts.
If part of automatic thermostatically controlled valve assembly
Parts of specific control valves in Chapter 90 may override general valve parts.
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Import Tips & Compliance
• Document alloy content exceeding base steel to justify but confirm it remains 'steel' per Chapter 84 notes
• Link to specific valve model in commercial invoice for tariff confirmation
Related Products under HTS 8481.90.90.81
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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.
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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 Steel Butterfly Valve Disc Forging
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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.