Check Valve Flanged Type
A one-way valve preventing backflow in piping systems using a swinging or lifting disc. Falls under HTS 8481.80.90 as other valves for tanks and pipes. Flanged ends allow bolting to industrial ducts.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If incorporating check function with pressure control
Combined check/pressure valves have separate provisions.
If welded directly to pipe sections
Pipe fittings with integral valves classify as tube/pipe fittings.
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Import Tips & Compliance
• Certify crack pressure ratings to avoid reclassification as safety devices
• Use ISPM-15 treated wooden crates for flanged valves to prevent quarantine issues
• Declare if API 6D certified for oilfield use to expedite clearances
Related Products under HTS 8481.80.90
Stainless Steel Ball Valve
A quarter-turn valve using a spherical disc to control flow in pipelines, commonly used in industrial fluid systems. It falls under HTS 8481.80.90 as an other appliance for pipes and tanks, distinct from pressure-reducing or thermostatically controlled valves. Made primarily of stainless steel for corrosion resistance.
Brass Gate Valve
A linear motion valve that opens/closes via a wedge gate, ideal for on/off control in water and gas lines. Classified in HTS 8481.80.90 as other valves for pipes and tanks, not specialized for pressure or temperature control. Brass construction suits low-pressure plumbing applications.
Globe Valve for Steam Lines
A valve using a spherical body and disc for throttling flow in steam and high-pressure systems. It qualifies under HTS 8481.80.90 as other pipe appliances, excluding automatic control types. Typically cast iron or steel for durability in heating applications.
Butterfly Valve Ductile Iron
A rotary valve with a disc pivoting on a shaft for flow regulation in HVAC and water systems. Classified HTS 8481.80.90 for other tank/pipe appliances. Ductile iron body withstands high velocities.
Needle Valve Precision
A fine-adjustment valve using a tapered pin for metering flow in instrumentation and gas lines. Under HTS 8481.80.90 as other similar appliances for pipes. Stainless steel for precise control applications.
Plug Valve Lubricated
A cylindrical or tapered plug valve for tight shutoff in corrosive chemical lines. HTS 8481.80.90 covers this as other pipe cocks/valves. Lubricated design extends life in harsh environments.