What is the maximum internal pressure Ductile iron pipe (DI pipe) can handle, you ask? The simple truth is it depends entirely upon the size of the pipe and its wall thickness. And within any given DI pipe diameter there can be as many as 12 correct yet different answers, given the wide range of intermingled thickness class and pressure class pipe selections available.
Recently, there have been multiple unsuccessful attempts by plastic pipe manufacturers and their trade associations to have legislation passed, mostly on the state level, requiring utilities to specify plastic pipes on their projects.
This legislation is a subject worth exploring deeper as it is being promoted by supporters of plastic and their lobbyists as a fiscally responsible requirement. Still, it provides no consideration for the many variables required in material selection or pipeline design; all are completely ignored in the proposed legislation which would ultimately be an "initial price only" comparison.
One of the more frequent questions we receive in the field is, “What is the size of a piece of Ductile iron pipe?” But that question may apply to the Outside Diameter (OD) or Inside Diameter (ID) of a piece of pipe. For this Iron Strong Blog, we are going to look at a particular size of pipe to help us understand why the OD and ID’s are important to you. We will be using 24 inches as our example pipe size.
Every summer, I go backpacking with my family into the Uinta Mountains of Utah. The Uinta mountain range is enormous, very remote, and extremely beautiful. One of the most scenic areas in the entire range is called Red Castle. In this area of the Uintas rises a towering red monolith with peaks that reach straight into the sky, hence the name. Getting there requires a grueling 10-mile trek, but the beauty and serenity are well worth the effort...
I have given several presentations wherein I have identified the distribution system of a water utility as The Forgotten City: Out of Sight, Out of Mind. Although the most significant capital investment for a water system is its pipeline infrastructure, many times, it gets less attention than other components such as pumps, motors, plant structures, pump stations, and even fire hydrants, all of which are visible to the eye. One mysterious component to some water utilities is Unaccounted for Water. Some say that, like death and taxes, Unaccounted for Water will always be present, with the only issue being the degree to which it pervades.
Why all these different numbers when ordering flanges? Why can’t it be easy? Often, people get confused about the proper terminology and usage of Ductile Iron flanges versus steel flanges. We are often asked, “Why are there two different Ductile Iron flanges?” The truth is they can all be mated together if ordered correctly.
I have been on the road for nearly 20 years, talked with numerous contractors and distributors during that time, and there is a common question that I often get asked, "Why do Ductile iron pipe lengths vary?"
The American Water Works Association (AWWA) is the premier trade association representing the drinking water industry in the United States. Through its network of paid professionals and volunteers throughout the country, AWWA has provided the drinking water industry with standards for water system operations as well as valuable research on countless subjects for many decades.
In today’s construction world, things are getting more and more technical and precise. As the waterworks industry evolved over the last 100 years, our understanding of installation processes has as well, specifically concerning stray currents emitted in the ground from steel gas or oil pipeline’s cathodic protection system and how they might influence the corrosion of adjacent Ductile iron (DI) pipelines.
Just as we start to feel that spring is just around the corner, Mother Nature reminds us that we are still in the midst of winter and warmer weather may still be days away. Lower temperatures are great for skiing, sledding, and hot beverages by the fire. However, in some parts of the country, a lower reading on the thermometer means trouble for our water lines.
In extremely cold weather, the water in our pipelines can freeze, cutting off supply to our homes and businesses. This inconvenient problem can be remedied in Ductile iron pipelines through the process of electrical thawing
In a continuous effort to make your job easier, we have developed an online submittal builder to quickly and neatly package your personalized presentation.
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