OPUS

Water Service: Ductile Iron Pipe

Water service systems include the connection, piping and associated valves and accessories that...
Read more...

Ductile iron pipe is made from cast iron that has been treated while molten to increase its...
Read more...

Benefit of Material to Systems Application

Ductile Iron Pipe (DIP) is approved for water service applications, but it would not typically be used for individual water supplies from the main to a structure. This pipe would be more commonly used in large water mains. Because of its flexibility, it is much easier to run underground. Ductile Iron Pipe can be slightly bent to go around obstacles, reducing the number of fittings required, and therefore reducing the installation time. There are also internal and external corrosion resistant coatings that can be applied to Ductile Iron which allows it to be used in areas with highly corrosive soils. Its high tensile strength allows it to be used under roads where it will have heavy traffic pressing down on it every day.

System Application and Material Usage

The strength of Ductile Iron pipe permits a wide variety of design applications including shallow bury/heavy traffic loads, deep bury/high soil prism loads, and high operating/surge pressures. Ductile Iron water service standards are detailed in 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.

High material strength allows ductile iron pipe to be installed with less stringent bedding and backfill specifications than other materials, eliminating some installation and labor costs.

The primary joining method for ductile iron pipe is the compression gasket, or “push-on” joint, a very reliable and water-tight joining method. Push-on joint systems for ductile iron have tested positively at up to 1,000 psi internal pressure, 430 psi external pressure, and 14 psi negative air pressure with no leakage or infiltration.

For more information regarding pressure ratings and sizing, refer to Ductile Iron Pipe.

Manufacturers and Suppliers Participating in OPUS

Embassy Group LTD

Embassy Group LTD is a 100-percent member owned, 3.2 billion dollar corporation consisting of......
(click for details)

Ferguson

Ferguson specializes in providing PVF, Plumbing, HVAC and Related Specialty Products and......
(click for details)

Hajoca Corporation

Founded in 1858, the Hajoca Corporation is the largest privately owned wholesale distributor of......
(click for details)

Jomar Valve

Founded in 1966 by former Navy Commander Joseph Martin, Jomar Valve set out to change the way......
(click for details)

MORSCO

MORSCO is a leading U.S. distributor of commercial and residential plumbing, HVAC, and PVF, with......
(click for details)

Victaulic

Victaulic is the world's leading manufacturer of mechanical pipe joining products. For over 80......
(click for details)

Weldbend Corporation

Weldbend Corporation is a manufacturer of carbon steel welding fittings and forged steel......
(click for details)

Winsupply

WinWholesale, Inc. is comprised of over 525 wholesale distribution locations. Along with Noland......
(click for details)

Applicable Joining Methods

Flanged

Flanging maybe used for threaded or plane-end pipe. After a flange component is installed on the...
(click for details)

Grooved

Grooved pipe joints consist of two grooved pipe ends (typically roll grooved) connected with a...
(click for details)

Mechanical

Used for ductile iron pipe, the mechanical joining method consists of a number of components...
(click for details)