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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If 2 inches or smaller
Smaller check valves are classified in the specific subheading for sizes up to 2 inches based on port size.
If sold as a replacement part
Parts of valves, including check valve components, fall under 8481.80 if not assembled as complete appliances.
If for pump end use
Check valves integral to pumps are classified with pumps in Chapter 84 rather than as separate valves.
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Import Tips & Compliance
• Verify material composition for accurate HTS classification and labeling; ensure pressure ratings meet ASME standards; obtain supplier certifications to avoid misclassification as parts
Related Products 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.
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.