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DIN 2635 WELDING NECK FLANGES NOMINAL PRESSURE 40



Pipe Flange Neck Raised Bolts Weight of
one flange
7.85 kg/dm3)
kg
NW d1 D b k h1 d3 s r h2 d4 f No. Thread d2
10 14 90 16 60 35 25 1.8 4 6 40 2 4 M12 (1/2") 14 0.661
17.2 28
15 20 95 16 65 38 30 2 4 6 45 2 0.746
21.3 32
20 25 105 18 75 40 38 2.3 4 6 58 2 106
26.9 40
25 30 115 18 85 40 42 2.6 4 6 68 2 1.29
33.7 46
32 38 140 18 100 42 52 2.6 6 6 78 2 1.88
42.4 56
40 44.5 150 18 110 45 60 2.6 6 7 88 3 2.33
48.3 64
50 57 165 20 125 48 72 2.9 6 8 102 3 M16 (5/8") 18 2.82
60.3 75
65 76.1 185 22 145 52 90 2.9 6 10 122 3 3.74
80 88.9 200 24 160 58 105 3.2 8 12 138 3 4.75
100 108 235 24 190 65 128 3.6 8 12 138 3 8 M20 (3/4") 23 6.52
114.3 134
125 133 270 26 220 68 155 4 8 12 188 3 8 M24 (7/8") 27 9.07
139.7 162
150 159 300 28 250 75 182 4.5 10 12 188 3 M24 (7/8") 11.8
168.3 192
175 191 350 32 295 82 215 5.6 10 16 285 3 12 M27 (1") 30 18.2
193.7 218
200 216 375 34 320 88 240 6.3 10 16 285 3 21.5
219.1 244
250 267 450 38 385 105 298 7.1 12 18 345 3 34.9
273 306
300 318 515 42 450 115 352 8 12 18 410 4 16 M30 (1-1/8") 33 49.7
323.9 362
350 355.6 580 46 510 125 408 8.8 12 20 460 4 M33 (1-1/4") 36
368 68.1
400 406.4 660 50 585 135 462 11 12 20 535 4 M36 (1-3/8") 39
419 96.5
500 508 755 52 670 140 562 14.2 12 20 615 4 20 M39 (1-1/2") 42
521 117