3,218
edits
(Created page with "Category:Piping{{Knoppen}} <noinclude><!------------------------------------------------ * READ THIS FIRST * Only edit this page if you can improve the content. * Improper u...") |
|||
Line 7: | Line 7: | ||
* Please start editing this page after the /noinclude | * Please start editing this page after the /noinclude | ||
* -------------------------------------------------></noinclude> | * -------------------------------------------------></noinclude> | ||
[[File:Tubing.jpg|thumb|right|Tubing]] | |||
'''Tubing''', or tube, is a long hollow cylinder used to convey | |||
fluids(liquids or gases).The terms pipe and tube are almost interchangeable, although minor distinctions exist — generally, a tube has tighter engineering requirements than a pipe. Both pipe and tube imply a level of rigidity and permanence, whereas a hose is usually portable and flexible. A tube and pipe may be specified by standard pipe size designations, e.g., nominal pipe size, or by nominal outside or inside diameter and/or wall thickness. The actual dimensions of pipe are usually not the nominal dimensions: A 1-inch pipe will not actually measure 1 inch in either outside or inside diameter, whereas many types of tubing are specified by actual inside diameter, outside diameter, or wall thickness. | |||
==Manufacture== | |||
There are three classes of manufactured tubing: seamless, as-welded or electric resistant welded (ERW), and drawn-over-mandrel (DOM). | |||
* Seamless tubing is produced via extrusion or rotary piercing. | |||
* Drawn-over-mandrel tubing is made from cold-drawn electrical-resistance-welded tube that is drawn through a die and over a mandrel to create such characteristics as dependable weld integrity, dimensional accuracy, and an excellent surface finish. | |||
==Sources== | |||
[http://en.wikipedia.org/wiki/Tubing_(material) Wikipedia Tubing] |