The Ductile Iron Pipe Research Association (DIPRA) is a technically based, research-oriented organization that has been providing accurate and reliable engineering information about cast iron and Ductile iron pipe for over 100 years. DIPRA offers a variety of technical resources, including brochures, publications, and personal technical service through their regional engineer program, to assist utilities and consulting engineers in understanding the design and application of Ductile iron pipe.
DIPRA is supported by all Ductile iron pressure pipe manufacturers in North America and is committed to producing and delivering the highest quality water and wastewater pipe material. With a focus on advocacy, DIPRA aims to help citizens, decision-makers, and professional engineers appreciate the numerous advantages that Ductile iron pipe offers to water and wastewater utilities. Their member companies uphold principles of environmental commitment, compliance, and protection in all their business activities.
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