How is Ductile Iron Pipe Lined with Cement?

Cement Lining of Iron pipe was invented in 1922. It prevents tuberculation and reduces the friction of water flow inside the pipe. The quality of the cement-mortar mix is carefully controlled, and the cement is applied centrifugally while the pipe are spun and vibrated. This ensures a smooth and even final surface. After the cement has cured a sealcoat is applied and the pipe is ready for decades of worry-free service.
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[@ryanzaragoza2789]

They need to inspect the groove in the bell where the gasket is installed, because install water mains and lately we have been sending back a lot of defective pipe

[@McWaneDuctilePipe]

We appreciate your concerns and have passed your comments along to appropriate representatives within the company. Thanks for watching our content and for reaching out here.

[@alexlindsey6446]

This video does not answer the question in it's own title.

[@alexlindsey6446]

I have since found the answer written above in the description...it's just that upon initially clicking on the video one would expect that answer in the video.

[@McWaneDuctilePipe]

We appreciate you pointing this out. We’re always striving to improve our products, services, and communications to our viewers. Your comment is appreciated. We have adjusted the video title to better reflect the video content.