Grooved Ductile Iron Coupling 2-inch
A 2-inch ductile iron coupling with grooved ends designed for joining steel pipes in fire protection and HVAC systems. It falls under HTS 7307.19.30.40 as a cast ductile fitting specifically featuring grooved ends for mechanical coupling. This fitting ensures secure, leak-proof connections 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 made from forged or machined steel rather than cast
Forged/malleable fittings classify under other steel fittings, not cast ductile fittings.
If threaded ends instead of grooved
Threaded ductile cast fittings fall under separate subheading excluding grooved-end types.
If imported as complete valve assemblies with grooved fittings
Valve-inclusive sets shift to machinery appliances rather than standalone pipe fittings.
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Import Tips & Compliance
• Verify casting material is ductile iron via mill test reports to confirm classification under cast fittings
• Include groove specifications (e.g
• Victaulic Style 77) in documentation to avoid misclassification as non-grooved
• Ensure pressure ratings meet ASTM A536 standards; common pitfall is incorrect end-use declaration for fire vs. water systems
Related Products under HTS 7307.19.30.40
Grooved Ductile Iron Reducing Coupling 4x3-inch
A reducing coupling in ductile iron connecting 4-inch to 3-inch grooved pipes, used in plumbing and irrigation systems. Classified under HTS 7307.19.30.40 for its cast ductile construction and grooved ends. Provides transitional sizing with high-pressure tolerance.
Grooved Ductile Iron 90-Degree Elbow 6-inch
A 90-degree elbow fitting in ductile iron with grooved ends for directional changes in large-diameter piping systems like industrial water lines. HTS 7307.19.30.40 applies due to its cast ductile material and grooved coupling design. Engineered for seismic flexibility in fire protection.
Grooved Ductile Iron Concentric Reducer 8x6-inch
Concentric reducer in ductile iron with grooved ends for smooth diameter transitions in large HVAC ductwork. Classified HTS 7307.19.30.40 for cast ductile grooved fittings. Maintains flow efficiency in high-volume systems.
Grooved Ductile Iron Cap 4-inch
A grooved-end ductile iron cap for sealing pipe ends in temporary or dead-end applications. HTS 7307.19.30.40 covers this cast ductile grooved fitting. Provides pressure-tight termination for system maintenance.
Grooved Ductile Iron Long Radius Elbow 3-inch
Long radius 90-degree elbow in ductile iron with grooved ends for reduced flow resistance in process piping. Under HTS 7307.19.30.40 as grooved cast ductile fitting. Ideal for chemical and water treatment plants.
Grooved Ductile Iron Cross Fitting 1-1/2-inch
Four-way cross fitting in ductile iron with all grooved ends for multi-directional pipe intersections. Classified under HTS 7307.19.30.40 as cast grooved-end ductile fitting. Common in complex fire main layouts.