What is the take-off measurement for a 3" pipe in a 90° butt weld ell?

The take-off measurement for a 3" pipe in a 90° butt weld el is determined by understanding how the fitting is designed to accommodate the pipe. The take-off measurement refers to the distance from the centerline of the elbow to the end of the pipe.

In the case of a 90° butt weld elbow, the take-off for a 3" diameter pipe is indeed 3 inches. This means that when the elbow is installed on the pipe, the pipe will extend 3 inches from the center of the elbow to the end of the fitting. This standardization helps with accurate fitting, alignment, and ensuring proper flow in the system being constructed.

In other options, the measurements do not correspond to the established standards for the take-off of a 3" pipe elbow. Understanding these measurements is crucial for accurate installation and construction in piping systems.