Flat welding flange with neck (SO)

Flat welding flange with neck (SO)

It is one of the manifestations of national standard flanges (also known as GB flanges) and is one of the commonly used flanges on equipment or pipelines. The lower neck height improves the stiffness and load-bearing capacity of the flange. Compared with butt welded flanges, the welding workload is large, the consumption of welding rods is high, and it cannot withstand high temperature, high pressure, repeated bending, and temperature fluctuations.