When it comes to water system project design, there are many factors to consider when utilizing Ductile iron pipe (DI pipe). One of the most important is corrosion prevention, and if correctly addressed, there are great opportunities to design your systems with projected life spans extending well beyond 100 years.
Celebrating Earth Day reminds us of the glorious surroundings we are provided with, bringing joy and happiness to our everyday lives. A variety of topographies span from rivers and streams to mountains and valleys. Even deserts and dry climate regions provide some of the most picturesque landscapes known to man. Earth Day is conveniently celebrated in the spring when flowers and trees burst with bountiful flowers and blooms. New life abounds as animals give birth to a new generation. A simple family picnic on a manicured lawn or trip down a mountain on a bike are just a couple of examples of pleasures we can enjoy.
Help Me Ditch Doctor,
The inspector on this pipeline project came out here and just told us we are laying pipe in the wrong direction. He said the bells have to face the other direction like the plans show. He wants us to dig up the 1,000 feet of pipe we've already installed and reverse each pipe. Is he for real? Does it really matter?
Thermite welding, often referred to as CAD welding, on Ductile iron pipe (DI pipe) and products is a common practice in our industry today. This welding technique of using heat from an exothermic reaction to produce coalescence between two metals is most often used to bond the Ductile iron joints for cathodic protection or for the opportunity to add a cathodic protection system at a later date. In this Iron Strong Blog, we will discuss when, why, and how to properly CAD weld on DI pipe.
Dear Ditch Doctor,
The county engineer is requesting that we dig up and replace sections of a newly installed Ductile iron pipeline as a result of comments or notations made by an internal video inspection camera operator. I've looked over the “issues” he's noted and can't for the life of me make out what he's talking about.
There are several factors to consider when choosing the type of pipe to use for your job. This article will focus on of few of those areas of concern as we compare Ductile iron pipe (DI pipe) to its shiny arch-nemesis, steel. I'll be walking through each material's pros and cons as they relate to product design, energy (pumping cost) efficiency, corrosion control, and installation.
There are occasions during field installation of Ductile iron pipe (DI pipe) when a Chamfered edge or a beveled edge may be required. There is typically a sharp edge on any metal pipe after field cutting. This edge is a safety hazard that requires removal. The sharp edge may also damage a gasket during installation, which is an additional reason to remove the sharp edge. Read on to see the differences and why it is essential to have the proper edge on a field-cut DI pipe.
When discussing Ductile iron pipe (DI pipe) in corrosion-resistant applications, glass-lined DI pipe often comes to mind. Glass lining has often been the specified lining for DI pipe in sewer and chemical resistant applications. Common uses for glass-lined pipe are for situations such as a sludge line in a wastewater treatment plant or when harmful chemicals are present in the pipeline. There may be occasions in the field when patching of the glass lining may be necessary.
Question – What is the difference between Ductile Iron and Polyvinyl Chloride (PVC)? Answer – Many things, but some groups may attempt to “muddy the waters” with inaccurate information regarding the two materials.
With the information that follows, we will take a closer look at what really separates Ductile Iron from PVC and why it matters.
Sustainability and Resiliency are today's buzzwords, especially concerning water and wastewater systems, but what does this really mean to you, the designer, manager and/or operator? Utility people today are bombarded with the answer to this question, and we believe that there is no one answer because every system is unique and experiences different priorities and different challenges.
In a continuous effort to make your job easier, we are constructing an online submittal builder to quickly and neatly package your personalized presentation. Stay tuned!
Looking for answers to your DI pipe questions? Find decades of Ductile iron expertise with installation guides, videos, tip sheets, training resources, and more in our Learning Center.
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