PIPE DRAFTING AND DESIGN
Long ago someone decided carrying water from the nearby stream back to his or her dwelling was timeconsuming and laborious. Ingenuity gave birth to invention and the pipe was born. Using the natural resources available, early humans probably fashioned the first pipe from bamboo. Needing to move larger amounts of water ,
they later hollowed out logs. Egyptian and Aztec civilizations made pipe from clay. The first metallic pipes were made by the Greeks and Romans from lead and bronze.
The use of iron as a material to manufacture pipe came about with the invention of gun powder. Gun powder, of course, is not used to make the iron, but gun powder necessitated the invention of stronger gun barrels. Iron pipes soon followed. Eventually exotic metals were developed, and pipe became the highly specialized product it is today.
Applied in a general sense, pipe is a term used to designate a hollow, tubular body used to transport any commodity possessing flow characteristics such as those found in liquids, gases, vapors, liquefied solids, and fine powders.
A comprehensive list of the materials used to manufacture pipe would be quite lengthy. Some of the materials include concrete, glass, lead, brass, copper, plastic,aluminum, cast iron, carbon steel, and steel alloys. With such a broad range of materials available, selecting one to fit a particular need can be confusing. A thorough understanding of the pipe's intended use is essential.
Each material has limitations that may make it inappropriate for a given application. Throughout this text we will base our discussion on carbon steel pipe, the most common material used in the piping industry.
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