Dimension and weight of DIN2635 PN40 Welding Neck Flange
Pipe Parameter d1 Flange Dimension Neck Size Hub Size Screw Approx. Flange Weight
DN ISO DIN D b k h1 d3 s r h2 d4 f No. of Holes d2 KG/PCS
10 – 14 90 16 60 35 25 1.8 4 6 40 2 4 14 0.67
17.2 – 90 16 60 35 28 1.8 4 6 40 2 4 14 0.66
15 – 20 95 16 65 38 30 2 4 6 45 2 4 14 0.75
21.3 – 95 16 65 38 32 2 4 6 45 2 4 14 0.75
20 – 25 105 18 75 40 48 2.3 4 6 58 2 4 14 1.07
26.9 – 105 18 75 40 40 2.3 4 6 58 2 4 14 1.07
25 – 30 115 18 85 40 42 2.6 4 6 68 2 4 14 1.29
33.7 – 115 18 85 40 46 2.6 4 6 68 2 4 14 1.28
32 – 38 140 18 100 42 52 2.6 6 6 78 2 4 18 1.88
42.4 – 140 18 100 42 56 2.6 6 6 78 2 4 18 1.86
40 – 44.5 150 18 110 45 60 2.6 6 7 88 3 4 18 2.1
48.3 – 150 18 110 45 64 2.6 6 7 88 3 4 18 2.08
50 – 57 165 20 125 48 72 2.9 6 8 102 3 4 18 2.81
60.3 – 165 20 125 48 75 2.9 6 8 102 3 4 18 2.78
65 76.1 – 185 22 145 52 90 2.9 6 10 122 3 8 18 3.81
80 88.9 – 200 24 160 58 105 3.2 8 12 138 3 8 18 4.62
100 – 108 235 24 190 65 128 3.8 8 12 162 3 8 22 6.42
114.3 – 235 24 190 65 134 3.6 8 12 162 3 8 22 6.27
125 – 133 270 26 220 68 155 4 8 12 188 3 8 26 8.83
139.7 – 270 26 220 68 162 4 8 12 188 3 8 26 8.61
150 – 159 300 28 250 75 182 4.5 10 12 218 3 8 26 11.67
168.3 – 300 28 250 75 192 4.5 10 12 218 3 8 26 11.29
175 193.7 – 350 32 295 82 218 5.6 10 15 260 3 12 30 17.01
200 219.1 – 375 34 320 88 244 6.3 10 16 285 3 12 30 20.49
250 – 267 450 38 385 105 298 7.1 12 18 345 3 12 33 33.75
273 – 450 38 385 105 306 7.1 12 18 345 3 12 33 33.34
300 323.9 – 515 42 450 115 362 8 12 18 410 4 16 33 46.55
350 355.6 – 580 46 510 125 408 8.8 12 20 465 4 16 36 67.73
– 368 580 46 510 125 408 8.8 12 20 465 4 16 36 63.96
400 406.4 – 660 50 585 135 462 11 12 20 535 4 16 39 96.73
– 419 660 50 585 135 462 11 12 20 535 4 16 39 91.99
500 508 – 755 52 670 140 562 14.2 12 20 615 4 20 42 120.96