DIN 2631 PN6

The Welding neck flanges is normally referred to as the high hub flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange.

The welding neck flange is the best designed butt-welded flange of those currently available because of its inherent structural value. It is expensive because of the design.


DIN 2631 PN6 DIN 2631 PN6
Rated
Diameter		FlangeScrewsWeight of a flange
(7,85 Kg/dm3)
DbkNumberThreadd2Shape B
Kg
159514654M 12140,72
2010516751,01
2511516851,23
3214016100M 16181,8
40150161102,09
50165181252,88
65185181453,66
80200201604,77
1002202018085,65
125250222108,42
15028522240M 202210,4
2003402429516,5
250395263501224
3004452640030,9
350505264601640,6
40056526515M 242649,4
500670286202075

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