Nb chart: Learn the difference and relation between

Learn the difference and relation between NPS, NB and OD of pipes, and how they are measured in inches and millimeters. Also, find out what is NPT and its applications in pipe threading. NB (nominal bore) is also frequently used interchangeably with NPS. Diameter Nominal (DN) This is the international and European metric method used to describe NPS (or NB ).DN pipe sizes numbers are therefore different to NPS. For example, the metric equivalent of an NPS 6 pipe (6”) is DN 150. This document contains a chart listing pipe sizes, outer diameters, wall thicknesses, and weights. It includes pipe sizes from 15mm to 2000mm nominal bore in 1 inch increments, with corresponding dimensions in mm. Explore the conversion between NB (Nominal Bore) and inches, including 80NB to inch and 25NB to inches. Use our pipe NB chart for accurate size comparisons in various applications.