1. the great circle on a sphere or heavenly body whose plane is perpendicular to the axis and everywhere equidistant from the poles. 2. the great circle of the earth that is equidistant from the North Pole and South Pole. 3. a circle separating a surface into two congruent parts. 4. celestial equator. [1350â1400; Middle English < Medieval Latin aequÄtor, Latin: equalizer (of day and night, as when the sun crosses the equator).
For potable water use, galvanized iron piping was commonplace in the United States from the late 1800s until around 1960. After that period, copper piping took over, first soft copper with flared fittings, then with rigid copper tubing utilizing soldered fittings.oday, most plumbing supply pipe is made out of steel, copper, and plastic; most waste (also known as soil) out of steel, copper, plastic, and cast iron. The straight sections of plumbing systems are called pipes or tubes. A pipe is typically formed via casting or welding, whereas a tube is made through extrusion.
1990 went to work at a repipe company to train the Drywallers and Painters. Quickly discovered that the plumbers did not know how to take the home apart so I took over the copper repiping and developed the methods of (Layout, Routeing, Staging). 1993 started my first Uponor Pex A installations.