Socket Welding Flanges Free Sample Socket welding flange refers to the flange that the pipe end is inserted into the flange ring ladder and welded at the pipe end and outside. There are two kinds with neck and without neck. The flange with neck has good rigidity, small welding deformation and good sealing performance. It can be used in the occasions with pressure of 1.0 ~ 10.0MPa. The type B...