Carbon Steel Weld Neck Flange, Color : Metallic

A Weld-Neck Flange or Welding-Neck Flange can be differentiated from all other types of flanges by its long tapered hub. In addition, there is also a gentle transition of thickness in the region of the butt weld that joins it to a pipe or to a fitting.
They are best suited for severe service conditions, whether loading conditions are substantially constant or fluctuating between wide limits. It is a flange with the wall thickness of the flange having the same dimensions of the matching pipe, the lighter the pipe the larger the bore, conversely, the heavier the pipe, the smaller the bore.
They are normally used for high pressure, cold or hot temperature.