Ductile Iron Pipe Research Association

Golden, US 80402
205.402.8700

More Info on Ductile Iron Pipe Research Association

From its inception more than 100 years ago, the Ductile Iron Pipe Research Association (DIPRA) has provided accurate, reliable, and essential engineering information about cast iron—and now Ductile Iron—pipe to a wide variety of utilities and consulting engineers.

Products

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Pipe Protection

V-Bio is an evolutionary advancement in pipe protection that adds a new dimension to ductile iron pipe’s long service life. It is a co-extruded polyethylene encasement encased...

Articles

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How To: Sewer Maintenance: Pipe Down

The impact of underground sewer pipe maintenance & design
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Spanning Generations

A 55-year history of polyethylene encasement