Ductile Iron Pipe
Strength and Durability for LiFe®
From its inception more than 100 years ago, 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.
How Can We Help You?
Where We'll Be
DIPRA’s Regional Engineers participate in conferences and water industry events throughout the year.
Ask an Engineer
DIPRA’s expert Regional Engineers are standing by to answer all your questions about the design and application of Ductile iron pipe.
A Research Oriented Organization
We are a technically based, research-oriented organization providing a variety of technical brochures and publications, representation on standards-making committees, technical research on a variety of applications-based topics such as corrosion control and design of Ductile iron pipe, and personal technical service through our regional engineer program.
About Our Members
DIPRA is a non-profit association supported by all of the Ductile iron pressure pipe manufacturers in North America. While DIPRA member companies have different names and locations, they all have one thing in common: a commitment to produce and deliver the finest quality water and wastewater pipe material in the world, Ductile iron pipe.
Ductile Iron Pipe Advocates
Because Ductile iron pipe is the best answer to America’s water infrastructure needs, DIPRA’s mission is to help citizens, decision-makers and professional engineers understand and appreciate the many advantages that Ductile iron pipe offers to water and wastewater utilities and their customers. We invite consulting and utility engineers to take advantage of our many services, including our in-field regional engineers and technical staff.
Our Environmental Commitment
The member companies of the Ductile Iron Pipe Research Association will uphold the following principles in all of their business activities through management commitment, employee involvement and allocation of adequate personnel and other resources:
We will continually improve our environmental, health, and safety performance with a primary focus on setting and achieving goals and objectives.
We will manage our business activities to meet all governmental laws and regulations as well as internally established environmental, health, and safety requirements. Our goal is 100% compliance, 100% of the time.
We will conduct our activities in a responsible manner to protect our employees, the public, and the environment by focusing on injury and illness prevention, pollution prevention and minimizing impacts and risks to the environment from our operations.
"In my 33 years in the water infrastructure industry, I have not found any other material stronger than Ductile iron pipe."
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