Other
Taps, cocks, valves and similar appliances, for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves; parts thereof: > Check (nonreturn) valves: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8481.30.90.00
Ball Check Valve for Air Compressors
Ball-style check valve using free-floating ball for backflow prevention in compressed air systems. HTS 8481.30.9000 covers such other check valves for tanks.
Inline Piston Check Valve
Inline piston check valve for hydraulic systems, with guided piston for precise sealing against back pressure. Under HTS 8481.30.9000 as other nonreturn valves.
Titanium Check Valve for Chemical Processing
Corrosion-resistant titanium check valve for aggressive chemical environments in processing plants, ensuring unidirectional flow. HTS 8481.30.9000 for other check valves in tanks/pipes.
Brass Swing Check Valve
A brass swing check valve prevents backflow in piping systems by using a hinged disc that swings open with forward flow and closes against reverse flow. It falls under HTS 8481.30.9000 as an 'other' check (nonreturn) valve not specified elsewhere in the subheading, designed for pipes, tanks, and boilers.
Stainless Steel Lift Check Valve
This stainless steel lift check valve uses a piston-like disc that lifts with forward flow and seats to block backflow, ideal for high-pressure applications. Classified under HTS 8481.30.9000 as an other check valve for pipes and tanks.
PVC Silent Check Valve
A PVC silent check valve minimizes water hammer with a spring-loaded disc for quiet, reliable backflow prevention in plumbing systems. It qualifies under HTS 8481.30.9000 for other nonreturn valves used in pipes and vats.
Bronze Flanged Check Valve
Bronze flanged check valve for corrosive environments, featuring bolted flanges for easy installation and a disc mechanism to prevent reverse flow. HTS 8481.30.9000 covers this as other check valves for boiler and tank applications.
Dual Plate Check Valve
Compact dual plate check valve with two semi-circular plates that pivot open for low pressure drop and snap shut to block backflow. Falls under HTS 8481.30.9000 as other nonmetallic or unspecified check valves for industrial piping.
Semiconductor Wafer Processing Check Valve
Specialized check valve for ultra-pure water systems in semiconductor wafer fabrication, preventing backflow without particle generation. HTS 8481.30.9000 applies to such other check valves used in process equipment per statistical notes.
Carbon Steel Y-Type Check Valve
Y-pattern carbon steel check valve offering straight-line flow with minimal resistance, used in oil/gas pipelines. Classified in HTS 8481.30.9000 as other check valves beyond size/material specifics.