For process engineers, the most important information is the pipe Internal Diameter (ID), as this is used in line sizing calculations. As discussed above, for a given Nominal Pipe Size (NPS), the pipe Outside Diameter (OD) remains constant. As the pipe schedule changes, the ID of the pipe changes. | Piping Engineering World

Have you seen our Pipe Insertion Depth Chart? It's a tool to help you measure and mark your pipe to ensure you've installed the fitting correctly. ➡ https://bddy.me/2XvofHX | SharkBite Plumbing Solutions