Miniature Copper Check Valve for RO Systems
Compact copper check valve (1/4 inch) for reverse osmosis water filtration units, preventing wastewater backflow into the membrane. HTS 8481.30.10 applies for its copper body and nonreturn role in small pipe systems. Common in home purification setups.
Import Duty Rates by Country of Origin
More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If only the copper valve body without internals
Unassembled or incomplete valve parts have separate provisions from finished valves.
If sold as integral part of water filtering machinery
Valves integral to filtering equipment may follow the machine's classification in Chapter 84.
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Import Tips & Compliance
• Certify for food-grade contact if for drinking water; FDA compliance required
• Use precise dimensions in manifests for small package duty advantages
• Avoid grouping with filters; classify as valve to prevent Chapter 84 shifts
Related Products under HTS 8481.30.10
Copper Swing Check Valve 1/2 Inch
A swing-type check valve made entirely of copper, featuring a hinged disc that allows fluid flow in one direction only and prevents backflow in plumbing systems. It falls under HTS 8481.30.10 as a nonreturn valve constructed of copper for use in pipes and tanks. Commonly used in residential water lines to protect pumps and fixtures.
Threaded Copper Check Valve 1-1/4 Inch
Threaded-end copper check valve preventing backflow in commercial plumbing, with a disc mechanism for quiet operation. Falls under HTS 8481.30.10 for its copper construction and nonreturn function in pipes and vats. Suitable for sump pumps and drainage systems.
Copper Lift Check Valve 1 Inch
A vertical lift check valve made of copper with a plunger that lifts to allow flow and drops to seal against backflow in vertical piping. It qualifies for HTS 8481.30.10 as a copper check (nonreturn) valve for tanks and boiler shells. Used in steam and hot water systems for reliable one-way flow.
Bronze Spring Check Valve 3/4 Inch
A spring-loaded check valve primarily of copper alloys (bronze), designed to automatically close via spring action to prevent reverse flow in water systems. Classified under HTS 8481.30.10 due to its copper base material and function as a nonreturn valve for pipes and boilers. Ideal for irrigation and HVAC applications.
Solder-End Copper Nonreturn Valve 2 Inch
A solder-joint copper nonreturn valve for larger diameter pipes, using gravity or spring to block reverse flow in heating systems. Classified in HTS 8481.30.10 as a copper check valve for boilers and tanks. Essential for radiant floor heating loops.
Industrial Copper Y-Type Check Valve 1-1/2 Inch
Y-pattern copper check valve for high-pressure industrial lines, with angled flow path for minimal resistance. Under HTS 8481.30.10 as a copper nonreturn valve for tanks and pipes. Used in chemical processing and marine applications.