Nominal Pipe Size (NPS) is a North American set of standard sizes for pipes used for high or low pressures and temperatures. Pipe size is specified with two non-dimensional numbers: a nominal pipe size (NPS) for diameter based on inches, and a schedule (Sched. or Sch.) for wall thickness. NPS is often incorrectly called National Pipe Size, due to confusion with national pipe thread (NPT). The European designation equivalent to NPS is DN (diamètre nominal/nominal diameter/Durchmesser nach Norm), in which sizes are measured in millimetres. The term NB (nominal bore) is also frequently used interchangeably with NPS.
Other articles related to "nominal pipe size, pipe, sizes, pipe sizes":
... British standard pipe thread sizes Copper tubing sizes National pipe thread sizes Pipe (fluid conveyance) Pipe thread sizes ...
... Pipe sizes can be confusing because the terminology may relate to historical dimensions ... For example, a half-inch iron pipe does not have any dimension that is a half inch ... Initially, a half inch pipe did have an inner diameter of 0.5 inches (13 mm)—but it also had thick walls ...
Famous quotes containing the words size, nominal and/or pipe:
“Crotchless trouser allows wearer to show private parts in public. Neoprene-coated nylon pack cloth is stain resistant, water repellent and tickles thighs when walking. Tan-olive shade goes with most fetishes. Adjustable straps attach to belt for good fit and easy up-down. Pant is suitable for fast exposures as well as extended engagements. One size fits all.”
—Alfred Gingold, U.S. humorist. Items From Our Catalogue, Flashers Pants, Avon Books (1982)
“Discourage litigation. Persuade your neighbors to compromise whenever you can. Point out to them how the nominal winner is often a real loserin fees, expenses, and waste of time. As a peacemaker the lawyer has a superior opportunity of being a good man. There will still be business enough.”
—Abraham Lincoln (18091865)
“Pans Syrinx was a girl indeed,
Though now shes turned into a reed;
From that dear reed Pans pipe does come,
A pipe that strikes Apollo dumb;
Nor flute, nor lute, nor gittern can
So chant it, as the pipe of Pan;”
—John Lyly (15531606)