Carbon Steel OS&Y Gate Valve 4-inch
Hand-operated outside screw and yoke (OS&Y) carbon steel gate valve with 4-inch size, featuring a rising stem for clear visual indication of valve position. Falls under HTS 8481.80.3055 for hand-operated steel gate type valves used in pipeline isolation. Ideal for high-pressure water and steam applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If globe type rather than gate
Globe valves provide throttling control via linear motion disc, separate from gate type on/off valves.
If having level or pressure control function
Valves with automatic control features beyond simple hand operation shift to other appliances.
If considered pipe fittings rather than valves
Simple threaded connectors without full gate mechanism may classify as tube or pipe fittings.
Not sure which classification is right?
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Import Tips & Compliance
• Provide test certificates for pressure and temperature ratings to comply with industrial safety standards
• Label clearly as 'hand-operated' to distinguish from automated versions during customs review
Related Products under HTS 8481.80.30.55
Bronze Rising Stem Gate Valve 1.5-inch NPT
Compact 1.5-inch NPT threaded bronze gate valve with rising stem, hand-operated for precise flow shutoff in smaller piping systems. Though bronze, classified under steel equivalent HTS 8481.80.3055 if specified as steel-bodied in hierarchy; primarily for water lines. Meets gate type definition for perpendicular gate closure.
Stainless Steel Gate Valve 2-inch Flanged
A hand-operated gate valve made of stainless steel with a 2-inch flanged connection, designed to control flow by raising or lowering a gate perpendicular to the flow path. Classified under HTS 8481.80.3055 as a hand-operated steel gate type valve for pipes and tanks. Used in water, oil, and gas systems for on/off control.
Stainless Steel Knife Gate Valve 6-inch Wafer
6-inch wafer-style stainless steel knife gate valve, hand-operated with a sharp-edged gate for handling slurries and viscous fluids in industrial processes. HTS 8481.80.3055 covers this hand-operated steel gate type for tanks and pipes. Common in wastewater and mining applications.
Steel Flanged Gate Valve for Semiconductor Gas Lines
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Cast Steel NRS Gate Valve 3-inch Threaded
3-inch threaded non-rising stem (NRS) cast steel gate valve, hand-wheel operated for compact installations where stem clearance is limited. HTS 8481.80.3055 applies to this steel hand-operated gate type for boilers and tanks. Preferred in marine and petrochemical services.
SS316 Bolted Bonnet Gate Valve 8-inch
Heavy-duty 8-inch SS316 stainless steel gate valve with bolted bonnet for easy maintenance, hand-operated via geared wheel for large diameters. Under HTS 8481.80.3055 for steel gate type valves in high-pressure oil and gas pipelines. Provides reliable isolation with minimal flow resistance.