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.
Today, most water systems serve the public in two ways: by providing potable drinking water and enabling fire protection for the community. Fire protection provides more than just the obvious public safety benefits. It also enhances community property values and provides residents lower home and property insurance rates.
Engineers are busy. They are faced with making critical calculations every day, especially regarding water and wastewater infrastructure. In this article, we will discuss five ways to design the thickness of Ductile iron pipe (DI pipe). Three of them are extremely quick and easy, the other two…maybe not so much
Most people commonly think the answer to this question is relatively simple. “All I need to do is make sure the Inside Diameter of the casing pipe is larger than the outside diameter of my carrier pipe.” While that is a correct answer, it isn’t necessarily the best answer. Within this Iron Strong Blog, we will closely examine what you need to consider when selecting a casing pipe to fit your application.
A question that comes up occasionally is, "Can I paint over the seal coat on Ductile iron pipe? Perhaps the more pertinent question is, "Should I paint over the outside shop coat? But before we answer either of those questions, we should ask for what purpose the user wants to paint over the seal coat in the first place. Is it for cosmetic purposes? Would it be intended as an identifying mark on the pipe? Or do they have some other purpose for changing or adding to the otherwise standard black asphaltic coating that the manufacturer typically provides?
Those involved in the construction of water and wastewater pipelines are probably aware of the installation methodology of Horizontal Directional Drilling (HDD). HDD is a trenchless technique that provides an installation alternative offering several benefits over traditional open-cut. HDD can be implemented with minimal disruption to surface activities, requires less working space, and can be performed more quickly than open-cut methods. HDD can be used to install new pipelines or replace existing ones. Also, it can simplify or eliminate certain permitting processes. Although there are currently no national standards regarding HDD installations of municipal underground infrastructure systems, HDD has seen a dramatic increase in recent years and is becoming more common for any pipe material. HDD may be the fastest-growing trenchless construction method today.
Ever wonder why zinc (Zn) is used for corrosion protection on Ductile iron pipe (DI pipe)? Or how thick the zinc coating is and how it is applied? Today we will answer those questions and cover when a zinc coating might be recommended.
Good Question! Today's Iron Strong Blog answers it. At first glance, you might think longer lengths mean fewer joints, and that has got to be better. So why don't all manufacturers make longer pipe? This perceived advantage is really a myth and we will look at that in a minute. In fact, there are more Ductile iron pipe plants in North America that manufacture 18-foot length pipe either entirely or as a significant portion of their product mix.
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.
At McWane Ductile, we are proud to manufacture the strongest, most durable, and most flexible piping material available to the waterworks industry. Even with these great attributes, we still take great care when handling Ductile iron pipe (DI pipe). In this Iron Strong Blog, we’ll cover some key tips to safely handling your DI pipe once it arrives at your job site and throughout the construction or your pipeline project.
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