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DIPRA representatives sit on the defining standards committees of the AWWA, ASME, ASTM, NACE, NFPA, and ISO organizations, ensuring that design and manufacturing standards for Ductile Iron Pipe remain the most stringent and comprehensive in the industry.

Download Brochure:
This one page downloadable PDF file outlines a sample specification for Ductile Iron Pipe and fittings. The conservative and comprehensive nature of the standards for Ductile Iron pipe, covering topics such as manufacturing, design, joints, fittings, and installation, make this simple approach possible.

AWWA Standards

The following standards are available from the American Water Works Association:

• ANSI/AWWA C104/A21.4 — American National Standard for Cement-Mortar Lining for Ductile-Iron Pipe and Fittings for Water
• ANSI/AWWA C105/A21.5 — American National Standard for Polyethylene Encasement for Ductile-Iron Pipe Systems
• ANSI/AWWA C110/A21.10 — American National Standard for Ductile-Iron and Gray-Iron Fittings, 3-inch through 48-inch, for Water and Other Liquids
• ANSI/AWWA C111/A21.11 — American National Standard for Rubber-Gasket Joints for Ductile-Iron Pressure Pipe and Fittings
• ANSI/AWWA C115/A21.15 — American National Standard for Flanged Ductile-Iron Pipe with Ductile-Iron or Gray-Iron Threaded Flanges
• ANSI/AWWA C116/A21.16 — American National Standard for Protective Fusion-Bonded Epoxy Coatings for the Interior and Exterior Surfaces of Ductile-Iron and Gray-Iron Fittings for Water Supply Service
• ANSI/AWWA C150/A21.50 — American National Standard for the Thickness Design of Ductile-Iron Pipe
• ANSI/AWWA C151/A21.51 — American National Standard for Ductile-Iron Pipe, Centrifugally Cast, for Water
• ANSI/AWWA C153/A21.53 — American National Standard for Ductile-Iron Compact Fittings, 3-inch through 24-inch and 54-inch through 64-inch, for Water Service
• ANSI/AWWA C600 — AWWA Standard for Installation of Ductile-Iron Water Mains and Their Appurtenances

ASTM Standards

The following standards are available from the American Society for Testing and Materials.

• ASTM A674 – Standard Practice for Polyethylene Encasement for Ductile Iron Pipe for Water and Other Liquids
• ASTM A716 – Standard Specification for Ductile Iron Culvert Pipe
• ASTM A746 – Standard Specification for Ductile Iron Gravity Sewer Pipe

AWWA Manual on Ductile Iron Pipe and Fittings

The following manual is available from the American Water Works Association.

• Ductile-Iron Pipe and Fittings (AWWA Manual M41) – This manual provides both technical and general information to aid in the design, specification, procurement, installation, and understanding of ductile iron pipe and fittings. It is intended for use by utilities and municipalities of all sizes, as well as, design engineers and consultants.