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Friday, April 5, 2019

Installation Guide for Ductile Iron Pipe




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Description
Ductile Iron is an improvement to the cast irons that have served the water industry with distinction through the centuries. The first Ductile Iron Pipe was produced experimentally in 1948. Minor but significant changes in the chemistry and processing of cast iron result in physical differences at the microstructure level, producing a material with vastly improved fracture toughness and ductility. The resulting Ductile Iron Pipe is substantially more resistant to damage from impact or concentrated stress.

Although both materials are classified as cast irons, in today’s terminology, the older material is identified as gray iron and the newer material as Ductile Iron. During the solidification stage of the casting process, the carbon, sometimes called graphite, comes out of solution and collects in numerous small pools. The shape of these pools of carbon is a major factor in the mechanical properties of the material.

Content:-
Introduction
Chapter 1 - Receiving and Handling
Chapter 2 - The Trench
Chapter 3 - Installation
Chapter 4 - Valves
Chapter 5 - Thrust Restraint
Chapter 6 - Backfilling
Chapter 7 - Testing and Disinfecting
Chapter 8 - Service Taps
Chapter 9 - Special Installations
Chapter 10 - Useful Information
Index




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