For a standard 90° butt weld ell, how does the take-off correlate to the pipe size?

In the context of a 90° butt weld ell, the take-off is defined as the distance measured from the centerline of the pipe to the end of the fitting. For standard pipe fittings, the design and dimensions follow specific standards that establish a consistent relationship between the size of the pipe and the dimensions of the fittings used.

When a pipe size increases, the take-off for a corresponding 90° butt weld ell typically matches the size of the pipe. This means that if you have a pipe that is, for example, 4 inches in diameter, the take-off measurement for the associated 90° ell fitting will also be 4 inches. This standardization is crucial for ensuring compatibility in piping systems and maintaining consistent flow paths.

Choosing this answer reflects an understanding of the principles of pipe fitting and ensures that installation and integration within piping systems is done accurately, maintaining both functionality and safety.