Other
Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves. > Check (nonreturn) valves > Hand operated or hand activated (excluding multiple gear, pulley or chain valves and connective couplings equipped with valves): > Other
Duty Rate (from China)
Products classified under Tariff item 8481.30.00.1
Brass Inline Check Valve 1/4 Inch
> A compact 1/4-inch brass inline check valve for refrigerant lines and compressed air systems under low pressure, with ball or poppet mechanism. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.
8481.30.00Brass Silent Check Valve 2 Inch
> A 2-inch brass silent check valve with cushioned disc closure to reduce water hammer in larger low-pressure water mains. It is a nonreturn valve for water distribution, classified under tariff item 8481.30.00.
8481.30.00Brass 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. It is a nonreturn valve, classified under tariff item 8481.30.00.
8481.30.00Bronze Horizontal Check Valve 3/8 Inch
> A 3/8-inch bronze horizontal inline check valve for fuel oil lines and low-pressure gas applications, oriented for horizontal piping. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.
8481.30.00Bronze 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. It is a nonreturn valve, classified under tariff item 8481.30.00.
8481.30.00Bronze Spring Check Valve 3/4 Inch
> A spring-loaded check valve made primarily of bronze (a copper alloy), designed to automatically close via spring action to prevent reverse flow in water systems. It is a nonreturn valve for pipes and tanks, falling under tariff item 8481.30.00.
8481.30.00Copper 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 is a nonreturn valve for tanks and pipes, classified under tariff item 8481.30.00.
8481.30.00Copper 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. It is a nonreturn valve, classified under tariff item 8481.30.00.
8481.30.00Copper 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 is a nonreturn valve for pipes, classified under tariff item 8481.30.00.
8481.30.00Copper Threaded Check Valve 1-1/2 Inch
> A 1-1/2 inch copper threaded-end check valve for easy installation in low-pressure irrigation and washdown systems. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.
8481.30.00Copper Y-Pattern Check Valve 1-1/4 Inch
> A 1-1/4 inch copper Y-pattern check valve for angled flow in low-pressure steam and condensate return lines, minimizing pressure drop. It is a nonreturn valve for pipes, classified under tariff item 8481.30.00.
8481.30.00Industrial Copper Y-Type Check Valve 1-1/2 Inch
> A Y-pattern copper check valve for high-pressure industrial lines, with an angled flow path for minimal resistance. It is a nonreturn valve for pipes and tanks, classified under tariff item 8481.30.00.
8481.30.00Miniature Copper Check Valve for RO Systems
> A compact copper check valve (1/4 inch) for reverse osmosis water filtration units, preventing wastewater backflow into the membrane. It is a nonreturn valve for small pipe systems, classified under tariff item 8481.30.00.
8481.30.00Solder-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. It is a check valve for boilers and tanks, classified under tariff item 8481.30.00.
8481.30.00Threaded Copper Check Valve 1-1/4 Inch
> A threaded-end copper check valve preventing backflow in commercial plumbing, with a disc mechanism for quiet operation. It is a nonreturn valve for pipes and vats, classified under tariff item 8481.30.00.