Neck flanges

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.

margo Neck flanges


Weld-neck flanges are available within the range of DN 10 – DN 2000.

They are produced according to the following standards:

  • DIN 2631, steel grade C22.8 for pressure PN 6
  • DIN 2632, steel grade C22.8 for pressure PN 10
  • DIN 2633, steel grade C22.8 for pressure PN 16
  • DIN 2634, steel grade C22.8 for pressure PN 25
  • DIN 2635, steel grade C22.8 for pressure PN 40
  • EN 1092-1, steel grades P235GH/P245GH/P265GH

Flanges Type 11 with the raised face B.

Neck flanges

are also available for sale online at MARGO. We have created the online shop mainly with installers, smaller retail outlets and individual recipients in mind. People interested in wholesale purchase, please contact the Sales Department in order to establish individual terms of sale.

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