DIN 26 32 PN10
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. Tube Flange Neck Raised face Screws Weight of a flange (7,85 Kg/dm3) Rated Diameter d1 D b k h1 d3 s r h2 d4 f Number Thread d2 Kg ISO Series 1 DIN Series 2 15 - 20 95 14 65 35 30 2 4 6 45 2 4 M 12 14 0,648 21,3 - 32 20 - 25 105 16 75 38 38 2,3 4 6 58 2 4 M 12 14 0,952 26,9 - 40 25 - 30 115 16 85 38 42 2,6 4 6 68 2 4 M 12 14 1,14 33,7 - 45 32 - 38 140 16 100 40 52 2,6 6 6 78 2 4 M 16 18 1,69 42,4 - 56 40 - 44,5 150 16 110 42 60 2,6 6 7 88 3 4 M 16 18 1,86 48,3 - 64 50 - 57 165 18 125 45 72 2,9 6 8 102 3 4 M 16 18 2,53 60,3 - 75 65 76,1 - 185 18 145 45 90 2,9 6 10 122 3 4 M 16 18 3,06 80 88,9 - 20...