Class 50 Ductile Iron Pressure Pipe 12-inch
12-inch nominal (305 mm ID) Class 50 ductile iron pressure pipe for irrigation and municipal pressure mains. Double cement-lined with seal-coated exterior. HTS 7303.00.00.60 for cast iron pressure pipes under 14 inches ID.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If seamless steel construction
Seamless alloy steel pressure pipes under 7304.29.
If precision-machined for valve bodies
Machined castings for valves classified under taps/valves heading.
Not sure which classification is right?
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Import Tips & Compliance
• Document pressure class and thickness (t/D ratio) to validate pressure pipe status
• Use precise ID measurements; 12-inch nominal = 304.8-312 mm range
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