There are several methods for restraining Ductile Iron Pipe joints, and a common question from our customers is, “Which method of restraint is best—locking gaskets or boltless restrained joints?” Both methods are effective, but the best choice for your project depends on the type of installation, the operating pressure of the line, and the diameter of the Ductile iron pipe being used. In this #IronStrong Blog, we will compare two common restraint options offered by McWane Ductile: Sure Stop 350® Gaskets and TR Flex® Pipe.
Cement-mortar lining for iron pipe has been used for nearly 100 years. The first installation of gray iron pipe with a cement lining was recorded in Savannah, GA in 1922. Todays modern Ductile iron pipe still utilizes cement lining for a safe and reliable means of providing clean drinking water to millions of people every day.
On occasion, however, the cement lining may have incurred some damage in the field. The lining, although very durable, does not have the same resistance to bending stress or impact as the pipe itself. Certainly, the pipe or fitting should be checked for further structural damage, but once determined the affected area is only the cement lining, repairs can be made under the applicable provisions within the ANSI/AWWA C104/A21.4 standard CEMENT-MORTAR LINING FOR DUCTILE IRON PIPE AND FITTINGS.
Many of you may have had the opportunity to attend the AWWA/ACE 18 Conference held in Las Vegas just a few weeks ago. Among the many highlights of that show is the Annual Pipe Tapping Contest.
The participants consist of both US and International teams that are selected through a qualifying process where they would have competed in various regional or sectional events held throughout the preceding year.
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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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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Stop struggling with those hard-to-figure field calculations and put ease and efficiency right at your fingertips with our Pocket Engineer for mobile and desktop devices.
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