Flanges

DIN 2633 / DIN 2634 / DIN 2635

DIN 2633, PN 16, German standard flanges, No. of Holes, Mumbai
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DIN 2633 PN16 (in mm)
Nominal Pipe Size Diameter at weld Bevel Flange Dia Thk of Flange Dia of Bolt Circle Length Through Hub Dia of Hub Wall Thk Radius of Hub Straight Portion Dia of R/F Thk of R/F No. of Dia of Bolt Holes  
DN D1 D B K H1 D3 S R H2 D4 F holes D2 KG
10 17.2 90 14 60 35 28 1.8 4 6 40 2 4 14 0.58
15 21.3 95 14 65 35 32 2.0 4 6 45 2 4 14 0.65
20 26.9 105 16 75 38 40 2.3 4 6 58 2 4 14 0.95
25 33.7 115 16 85 38 45 2.6 4 6 68 2 4 14 1.14
32 42.4 140 16 100 40 56 2.6 6 6 78 2 4 18 1.65
40 48.3 150 16 110 42 64 2.6 6 7 88 3 4 18 1.83
50 60.3 165 18 125 45 75 2.9 6 8 102 3 4 18 2.48
65 76.1 185 18 145 45 90 2.9 6 10 122 3 4 18 3.03
80 88.9 200 20 160 50 105 3.2 8 10 138 3 8 18 3.82
100 114.3 220 20 180 52 131 3.6 8 12 158 3 8 18 4.41
125 139.7 250 22 210 55 156 4.0 8 12 188 3 8 18 6.07
150 168.3 285 22 240 55 184 4.5 10 12 212 3 8 22 7.40
175 193.7 315 24 270 60 210 5.4 10 12 242 3 8 22 9.86
200 219.1 340 24 295 62 235 5.9 10 16 268 3 12 22 10.85
250 273.0 405 26 355 70 292 6.3 12 16 320 3 12 26 15.87
300 323.9 460 28 410 78 344 7.1 12 16 378 4 12 26 21.24
350 355.6 520 30 470 82 390 8.0 12 16 438 4 16 26 31.38
400 406.4 580 32 525 85 445 8.0 12 16 490 4 16 30 39.30
500 508.0 715 34 650 90 548 8.0 12 16 610 4 20 33 59.63
600 610.0 840 36 770 95 652 8.8 12 18 725 5 20 36 82.54
700 711.0 910 36 840 100 755 8.8 12 18 795 5 24 36 83.90
800 813.0 1025 38 950 105 855 10.0 12 20 900 5 24 39 107.30
900 914.0 1125 40 1050 110 955 10.0 12 20 1000 5 28 39 124.97
1000 1016.0 1255 42 1170 120 1058 10.0 16 22 1115 5 28 42 163.76
1200 1220.0 1485 48 1390 130 1262 12.5 16 30 1330 5 32 48 244.15
1400 1420.0 1685 52 1590 145 1465 14.2 16 30 1530 5 36 48 320.87
1600 1620.0 1930 58 1820 160 1668 16.0 16 35 1750 5 40 56 465.83
1800 1820.0 2130 62 2020 170 1870 17.5 16 35 1950 5 44 56 570.52
2000 2020.0 2345 66 2230 180 2072 20.0 16 40 2150 5 48 62 706.74
DIN 2635, PN 40, German standard flanges, No. of Holes, ISO, Mumbai
DIN 2634 PN 25 (in mm)
Nominal Pipe Size Diameter at weld Bevel Flange Dia Thk of Flange Dia of Bolt Circle Length Through Hub Dia of Hub Wall Thk Radius of Hub Straight Portion Dia of R/F Thk of R/F No. of Dia of Bolt Holes  
DN D1 D B K q D3 S R H2 D4 F holes D2 KG
10 17.2 90 16 60 35 28 1.8 4 6 40 2 4 14 0.66
15 21.3 95 16 65 38 32 2.0 4 6 45 2 4 14 0.75
20 26.9 105 18 75 40 40 2.3 4 6 58 2 4 14 1.07
25 33.7 115 18 85 40 46 2.6 4 6 68 2 4 14 1.28
32 42.4 140 18 100 42 56 2.6 6 6 78 2 4 18 1.86
40 48.3 150 18 110 45 64 2.6 6 7 88 3 4 18 2.08
50 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 3.61
80 88.9 200 24 160 58 105 3.2 8 12 138 3 8 18 4.62
100 114.3 235 24 190 65 134 3.6 8 12 162 3 8 22 6.27
125 139.7 270 26 220 68 162 4.0 8 12 188 3 8 26 8.61
150 166.3 300 28 250 75 192 4.5 10 12 218 3 8 26 11.29
175 193.7 330 28 280 75 218 5.6 10 15 248 3 12 26 13.11
200 219.1 360 30 310 80 244 6.3 10 16 278 3 12 26 16.61
250 273.0 425 32 370 88 298 7.1 12 18 335 3 12 30 23.48
300 323.9 485 34 430 92 352 8.0 12 18 395 4 16 30 30.74
350 355.6 555 38 490 100 398 8.0 12 20 450 4 16 33 47.20
400 406.4 620 40 550 110 452 8.8 12 20 505 4 16 36 61.69
500 508.0 730 44 660 125 558 10.0 12 20 615 4 20 36 89.57
600 610.0 845 46 770 125 660 11.0 12 20 720 5 20 39 114.96
700 711.0 960 46 875 125 760 12.5 12 20 820 5 24 42 139.50
800 813.0 1085 50 990 135 865 14.2 12 22 930 5 24 48 188.71
900 914.0 1185 54 1090 145 968 16.0 12 24 1030 5 28 48 231.48
1000 1016.0 1320 58 1210 155 1070 17.5 16 24 1140 5 28 56 303.52
DIN 2634, PN 25, German standard flanges, No. of Holes, ISO, Mumbai
DIN 2635 PN 40 (in mm)
Nominal Pipe Size Diameter at weld Bevel Flange Dia Thk of Flange Dia of Bolt Circle Length Through Hub Dia of Hub Wall Thk Radius of Hub Straight Portion Dia of R/F Thk of R/F No. of Dia of Bolt Holes  
DN D1 D B K H1 D3 S R H2 D4 F holes D2 KG
10 17.2 90 16 60 35 28 1.8 4 6 40 2 4 14 0.66
15 21.3 95 16 65 38 32 2.0 4 6 45 2 4 14 0.75
20 26.9 105 18 75 40 40 2.3 4 6 58 2 4 14 1.07
25 33.7 115 18 85 40 46 2.6 4 6 68 2 4 14 1.28
32 42.4 140 18 100 42 56 2.6 6 6 78 2 4 18 1.86
40 48.3 150 18 110 45 64 2.6 6 7 88 3 4 18 2.08
50 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
100 114.3 235 24 190 65 134 3.6 8 12 162 3 8 22 6.27
125 139.7 270 26 220 68 162 4.0 8 12 188 3 8 26 8.61
150 168.3 300 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
250 273.0 450 38 385 105 306 7.1 12 18 345 3 12 33 33.34
300 323.9 515 42 450 115 362 8.0 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
400 406.4 660 50 585 135 462 11.0 12 20 535 4 16 39 96.73
500 508.0 755 52 670 140 562 14.2 12 20 615 4 20 42 120.96
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