An elbow with a flange is a piping component used to change the direction of flow while providing a secure bolted connection, commonly used in plumbing, HVAC, and industrial pipelines. In SolidWorks, it is designed using Extrude, Revolve, and Sweep features to create the curved elbow and flanged ends, with flow simulations to analyze pressure and velocity changes. Typically made from stainless steel, cast iron, or PVC, it ensures leak-proof connections, easy assembly, and efficient fluid transport in piping systems.