Ductile Iron Grooved Reducing Coupling
A cast ductile iron fitting used to connect pipes of different diameters in grooved piping systems, commonly for fire protection or HVAC applications. It falls under HTS 7307.19.30.85 as other ductile cast iron pipe fittings, not elbows, sleeves, or specifically threaded types. The grooved design allows for mechanical coupling without welding.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If not cast but forged or machined from bar stock
Non-cast ductile iron fittings shift to other steel fittings heading, changing material process classification.
If sold as components of a fire sprinkler set
Fittings in multi-component assemblies for specific end-use may classify under other cast fittings subheadings.
If incorporating valves or regulatory functions
Fittings with integrated valves become tap/t valve appliances, not plain pipe fittings.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify ductile iron composition via material certificates to confirm classification under cast fittings
• Include groove specifications in documentation; mismatches can lead to reclassification as flanges
• Check for anti-dumping duties on Chinese-origin ductile fittings, common pitfall for fire protection imports
Related Products under HTS 7307.19.30.85
Ductile Iron Mechanical Tee Fitting
Cast ductile iron tee fitting with mechanical groove ends for branching pipes in water supply or irrigation systems. Classified under HTS 7307.19.30.85 as other ductile cast fittings suitable for high-pressure applications. Its design facilitates easy installation in grooved pipe networks.
Ductile Iron Grooved Cross Fitting
A four-way cast ductile iron cross fitting with grooved connections for multi-directional pipe branching in utility systems. It qualifies for HTS 7307.19.30.85 as other non-elbow/sleeve ductile cast fittings. Ideal for complex plumbing layouts in commercial buildings.
Ductile Iron Grooved Cap Fitting
Cast ductile iron cap fitting to seal the end of grooved pipes in pressure systems like fire mains. Falls under HTS 7307.19.30.85 for other ductile cast iron fittings excluding standard sleeves. Provides corrosion-resistant termination for piping runs.
Ductile Iron Grooved Wye Fitting
Y-shaped cast ductile iron fitting with grooved ends for dividing pipe flow in drainage or irrigation. Classified in HTS 7307.19.30.85 as other ductile cast pipe fittings. Enhances flow efficiency in angled branching setups.
Ductile Iron Grooved Adapter Fitting
Cast ductile iron adapter converting grooved to threaded pipe ends for hybrid systems. HTS 7307.19.30.85 covers this as other ductile fittings beyond basic couplings. Essential for retrofitting existing threaded infrastructure.
Ductile Iron Grooved Spacer Fitting
Short cast ductile iron spacer saddle for aligning grooved pipes in expansion joints. Under HTS 7307.19.30.85 as other ductile cast fittings for precise system spacing. Used in seismic-prone area piping.