This type of flange is distinguished by a characteristic neck, which must be precisely matched to the diameter of the pipe with which the flange is connected. This type of flange connection ensures above-average tightness. It is used in installations adapted to work in extremely high or low temperatures.
Steel neck flanges are often used in piping as a connection between two pipes or as an entry/exit point for other piping components such as valves, pressure gauges and industrial automation components.
