So my confusion comes from the paragraph highlighted in the attached jpg. It says the values in the K Factor Table are based on a schedule of pipe associated with the designated ASME Class for valves and FITTINGS. The way I interpret it, the "fittings" group should encompass tees, bends, and...
In Crane TP 410, they specify that you have to adjust the K factor for the pipe schedule with the associated ASME Class (p. 2-9 of the 2013 edition). Does this apply to tees, bends, and reducers? I don't think I have ever heard of a ASME Class for an elbow.