Flanges

DIN 2627 / DIN 2628 / DIN 2629

DIN 2627, PN 400, standard, German flanges, Mumbai
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DIN 2627 PN 400 (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 17.20 125 28 85 65 48 3.60 4 8 40 2 4 18 2.50
15 26.90 145 30 100 68 56 5.00 4 8 45 2 4 22 3.57
25 42.40 180 38 130 90 82 7.10 4 10 68 2 4 26 7.35
40 60.30 220 48 165 110 106 10.00 6 12 88 3 4 30 13.93
50 76.10 235 52 180 120 120 12.50 6 15 102 3 8 30 16.50
65 101.60 290 64 225 135 158 16.00 6 18 122 3 8 33 31.33
80 114.30 305 68 240 150 174 17.50 8 20 138 3 8 33 37.99
100 139.70 370 80 295 175 215 22.20 8 25 162 3 8 39 66.77
125 193.70 415 92 340 200 258 30.00 8 30 188 3 12 39 94.73
150 219.10 475 105 390 225 302 35.00 10 35 218 3 12 42 144.85
200 273.00 585 130 490 280 388 40.00 10 40 285 3 16 48 269.50
DIN 2628, PN 250, standard, German flanges, No. of holes, Mumbai
DIN 2628 PN 250 (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 17.2 125 24 85 58 44 2.6 4 6 40 2 4 18 2.09
15 21.3 130 26 90 60 48 2.6 4 6 45 2 4 18 2.47
25 33.7 150 28 105 65 60 3.6 4 8 68 2 4 22 3.53
40 48.3 185 34 135 80 84 5 6 10 88 3 4 26 6.58
50 60.3 200 38 150 85 95 6.3 6 10 102 3 8 26 8.09
65 76.1 230 42 180 95 124 8 6 12 122 3 8 26 12.59
80 101.6 255 46 200 102 136 11 8 12 138 3 8 30 16.32
100 127 300 54 235 120 164 14.2 8 14 162 3 8 33 27.07
125 152.4 340 60 275 140 200 16 8 16 188 3 12 33 38.79
150 177.8 390 68 320 160 240 17.5 10 18 218 3 12 36 59.05
200 244.5 485 82 400 190 305 25 10 25 285 3 12 42 109.45
250 298.5 585 100 490 215 385 32 12 30 345 3 16 48 189.94
DIN 2628, PN 250, standard, German flanges, No. of holes, Mumbai
DIN 2629 P N 320 (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 17.2 125 24 85 58 44 2.6 4 6 40 2 4 18 2.09
15 21.3 130 26 90 60 48 3.2 4 6 45 2 4 18 2.49
25 33.7 160 34 115 78 68 5 4 8 68 2 4 22 5.11
40 48.3 195 38 145 88 92 6.3 6 10 88 3 4 26 8.47
50 63.5 210 42 160 100 106 8 6 10 102 3 8 26 10.52
65 88.9 255 51 200 120 138 11 6 12 122 3 8 30 19.26
80 101.6 275 55 220 130 156 12.5 8 14 138 3 8 30 24.81
100 133 335 65 265 145 186 16 8 16 162 3 8 36 42.18
125 168.3 380 75 310 175 230 20 8 20 188 3 12 36 63.30
150 193.7 425 84 350 195 265 25 10 25 218 3 12 36 91.04
175 219.1 485 95 400 215 308 28 10 28 260 3 12 42 135.46
200 244.5 525 103 440 235 345 30 10 30 285 3 16 42 170.94
250 323.9 640 125 540 300 428 40 12 40 345 3 16 52 311.99
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