![]() ![]() These sizes are based on an approximation and are not characteristic of the exact diameter of the pipe. Usually, engineers use a term called “nominal bore” which corresponds to a certain outer diameter measured in inches, or the “nominal diameter” which corresponds to an outer diameter measured in millimeters. For example, a pipe that has an outer diameter of 60.3 mm and a wall thickness of 2.8, has an internal diameter of 60.3 – (2.8 x 2) = 54.7 mm.Ĭonsidering how widely these elements are applied in practical engineering, it is very important to be able to ensure coherence between them (fitting and connecting/welding sections) as well as to predict their performance from the perspective of fluid flow, and thus pipe sizes are fully standardized. This consideration is important for engineers since the inner diameter is what determines the flow velocity and rate. Based on the aforementioned consideration, we can simply calculate the inner diameter of a pipe by subtracting the pipe wall thickness twice from the number that corresponds to the outer diameter. ![]() The pipe’s wall thickness practically determines the strength of the pipe but it also helps us derive the “inner diameter” of the pipe. Next, there is the “wall thickness” of the pipe that is used by engineers to determine whether a pipe section is suitable to handle the designated pressures or not, categorized in “schedules”. In order to keep consistency with the pipe fitting sections, we have nowadays decided to relate the outer diameter with the “nominal pipe size” classification, so when we’re dealing with an one-inch pipe we can consult data tables and figure out its specific “outer diameter”.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |