Weld neck flanges are connected to pipe by welding the pipe to the neck of the flange, which helps to pass on the stress from the weld neck to the pipe itself. This also reduces high stress concentration at the base of the hub of the weld neck...
Socket weld flange is similar to the slip-on flange in outline, but the bore is counter bored to accept pipe. Socket welding flanges are typically used on smaller sizes of high pressure pipes. Socket weld flanges are widely used in high pressure...