Ductile Iron Pipe Research Assn
The Ductile Iron Pipe Research Association (DIPRA), based in Valparaiso, IN, has been a leading provider of essential engineering information regarding cast and ductile iron pipe for over 100 years. With a focus on strength, durability, and sustainability, DIPRA aims to educate utilities and consulting engineers about the advantages of ductile iron pipe in water and wastewater applications.
DIPRA is a non-profit organization supported by ductile iron pressure pipe manufacturers across North America, uniting them in a commitment to quality and community service. Through their technical resources, calculators, and expert guidance, DIPRA helps stakeholders make informed decisions for effective infrastructure projects.
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