DIMENSIONAL DIFFERENCES IN PIPE SIZE
Nominal Pipe Size (NPS)
The term used as a guideline number defining the diameter
of the pipe. Nominal pipe size refers to only the outside diameter (OD) of a pipe.
Nominal Bore (NB)
The European designation equivalent to NPS, in which sizes are measured in millimetres. NB (nominal bore) is also frequently used interchangeably with NPS.
Diameter Nominal (DN)
The international and European metric method used to describe NPS (or NB).
DN pipe sizes numbers are therefore different to NPS.
Outside Diameter (OD)
OD is the outside diameter of the pipe and is fixed for a given size. The NPS is related to the inside diameter
|order||DN DIAMETER NOMINAL||NPS NOMINAL PIPE SIZE||NB NOMINAL BORE||OD OUTSIDE DIAMETER||VariableText||Product||Variation||AddtoQuote|
* Calculators and other tools in this website are intended for information purposes only. Any reliance placed on the content of the website is to be made at your own risk.
We do not take liability for any loss or damage arising out of, or in connection with the use of any tools available on this website.