Wemanufacture high quality Forged flanges including Blind Flange, Threaded Flange, Long Weld Neck Flange, Socket Weld Neck Flange, Slip On Flange, Spectacle Lap Joint Flange, Crankshafts, Gears, Forged Ring, Tube Sheet, Rolls, Hollow Bars and Self-Reinforced Nozzle.
SA 105, SA266 GR 1, SA266 GR 2, SA266 GR 3, SA266 GR 4, SA 350 LF1, SA350 LF2, IS 2004 CL1, IS 2004 CL2, IS 2004 CL3, IS 2004 CL4, EN 8, EN 9
SA 182 F1, SA 182 F5, SA 182 F9, SA 182 F11, SA 182 F12, SA 182 F22, SA 350 LF3, EN 19, EN 24
SA 182 F304/L/H, SA 182 F316/L/H, SA 182 F321/H, SA 182 F347/H, SA 182 F410
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.