Pipe onto an Elbow
A round branch set onto a segmented bend, on its outside or on its side: the branch unrolled with the saddle that fits the gores. A round branch set onto a segmented bend, on the outside of the bend or on its side: the branch unrolled with the saddle that fits the gores it lands on.
How the pipe onto an elbow is developed, with a worked example · Pipe ends and nozzles