In the illustration, the welded neck flange is attached to the pipe by a __________. Illustration GS-0078

Correct Answer: Option D — V-weld over a backing ring

Welded neck flanges are designed for high-pressure piping systems. The connection to the pipe is typically achieved using a V-groove weld, often utilizing a backing ring to ensure full penetration and prevent weld spatter or icicles from entering the pipe bore during the welding process.