The welding neck flange derives its name from the neck portion of the flange that is welded to the end of a piping system. It is designed to transfer stress to the pipe, thereby reducing high stress concentrations at the base of the flange. Weldneck Flanges are costlier due to their design and engineering, and increased material
Our weldneck Flanges are available with raised, flat, or RTJ faces, and are also available in Orific configurations.
These Flange are available in all of our stainless steel and chrome-moly grades, from ½" to 36" and beyond, class 150 to 2500. We also stock large diameter Series A B16.47 Weldneck Flanges in A105N, and can supply Series B weldnecks with longer lead times. We can also source many of your other specification requirements.