Iron Swing Check Valve
A swing-type check valve made entirely of cast iron, featuring a hinged disc that swings open with forward flow and closes to prevent backflow in piping systems. Classified under HTS 8481.30.20.10 as a nonreturn valve of iron, designed for use in water, wastewater, or industrial pipelines to protect pumps and equipment from reverse flow.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If made of steel instead of iron
Steel check valves fall under the 'of steel' subheading in the same check valve category.
If classified as a valve part rather than complete
Unfinished or replacement components may be treated as parts, not complete appliances.
If for bulk industrial use without pipe fitting features
Plain iron castings without valve mechanisms default to other articles of iron.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Confirm the valve body is cast iron (not steel) via material certification to qualify for this specific subheading
• Provide detailed engineering drawings and flow diagrams in documentation to prove nonreturn functionality
• Watch for common pitfalls like alloy content exceeding limits, which could shift classification to steel valves
Related Products under HTS 8481.30.20.10
Cast Iron Lift Check Valve
Cast iron lift check valve with a piston-like disc that lifts vertically to allow flow and drops to seal against backflow, ideal for horizontal or vertical installations in plumbing systems. It falls under HTS 8481.30.20.10 due to its iron construction and nonreturn design for pipes and tanks.
Ductile Iron Silent Check Valve
Ductile iron silent check valve designed to minimize water hammer with a spring-assisted disc for quiet operation in HVAC piping systems. It qualifies under HTS 8481.30.20.10 as an iron nonreturn appliance for boilers and tanks.
Iron Foot Check Valve
Cast iron foot check valve with integral strainer for well pump suction lines, combining filtration and backflow prevention. Under HTS 8481.30.20.10 as an iron nonreturn appliance for tanks and pipes.
Iron Spring Loaded Check Valve
Spring-loaded cast iron check valve for quick response in variable flow pumping systems, ideal for sewage ejector applications. Classified HTS 8481.30.20.10 as iron nonreturn for tanks.
Malleable Iron Check Valve
Malleable cast iron check valve with superior ductility for vibration-prone HVAC ducts, preventing air backdraft. HTS 8481.30.20.10 for iron pipe appliances.
Iron Disc Check Valve for Boilers
Heavy cast iron disc check valve rated for boiler feedwater lines, ensuring no steam backflow into feed pumps. Under HTS 8481.30.20.10 explicitly for boiler shells.