Brass Swing Check Valve 1/2 Inch
A 1/2-inch brass swing check valve designed to prevent backflow in low-pressure plumbing systems, featuring a hinged disc that swings open with forward flow and closes against reverse flow. Classified under HTS 8481.30.10.10 as a copper check valve with pressure rating under 850 kPa, ideal for residential water lines and irrigation. Its copper alloy construction ensures corrosion resistance in non-industrial applications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pressure rating 850 kPa or higher
Higher pressure copper check valves shift to general copper check valve provisions excluding the low-pressure subheading.
If made of other base metals like stainless steel
Material change from copper to steel moves it out of copper-specific heading into other metal valves.
If imported as parts like discs or seats rather than assembled
Unassembled components or parts of check valves classify separately from complete valves.
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Import Tips & Compliance
• Verify pressure rating certification below 850 kPa and copper alloy composition (at least 58% copper) via material test reports to avoid reclassification
• Include detailed technical specs like size, flow rate, and end connections in commercial invoices for CBP review
Related Products under HTS 8481.30.10.10
Copper Spring Check Valve 3/4 Inch
A 3/4-inch copper spring-loaded check valve for preventing reverse flow in hydronic heating systems and potable water pipes, using a spring to seat the poppet. Falls under HTS 8481.30.10.10 due to its copper construction and low-pressure rating under 850 kPa. Compact design suits tight spaces in HVAC and residential installations.
Brass Silent Check Valve 2 Inch
2-inch brass silent check valve with cushioned disc closure to reduce water hammer in larger low-pressure water mains. Fits HTS 8481.30.10.10 as copper alloy check valve under 850 kPa. Installed in municipal water distribution and fire protection systems.
Bronze Horizontal Check Valve 3/8 Inch
3/8-inch bronze horizontal inline check valve for fuel oil lines and low-pressure gas applications, oriented for horizontal piping. Under HTS 8481.30.10.10 for copper content and pressure spec. Prevents siphoning in heating oil systems.
Bronze Lift Check Valve 1 Inch
A 1-inch bronze lift check valve where the disc lifts vertically in the flow direction and drops to seal against backflow, used in low-pressure air and water systems. HTS 8481.30.10.10 applies for its copper alloy (bronze) body and sub-850 kPa rating. Commonly installed in pump discharge lines for residential and light commercial use.
Brass Inline Check Valve 1/4 Inch
Compact 1/4-inch brass inline check valve for refrigerant lines and compressed air systems under low pressure, with ball or poppet mechanism. Classified in HTS 8481.30.10.10 for copper construction and pressure under 850 kPa. Essential for small appliance servicing and pneumatic tools.
Copper Y-Pattern Check Valve 1-1/4 Inch
1-1/4 inch copper Y-pattern check valve for angled flow in low-pressure steam and condensate return lines, minimizing pressure drop. HTS 8481.30.10.10 due to copper material and <850 kPa rating. Used in boiler feed systems and light industrial plumbing.