Is it acceptable industry practice to weld slip on flanges to a long radius butt weld elbow? I am specifically talking about 8" and 16" 150# B16.5 A105 flanges. We typically use weld necks with butt weld elbows.
Does Anyone know of a company in the Delaware Valley (or North Eastern USA) that has a hydrotest machine that can handle a 24" Nominal size, 150# (check) valve with butt weld ends that is approximately 54" long?
