Types of flanges (typ) up to DIN EN 1092-1 Typ 01: Plate (slip-on) flanges for welding | Typ 13: Hubbed threaded flanges | Typ 02: Loose plate flanges with weld-on plate collar | Typ 21: Integral flanges | Typ 04: Loose plate flanges with weld-neck collar | Typ 32: Weld-on plate collars | Typ 05: Blank (blind) flanges | Typ 33: Lapped pipe ends | Typ 11: Weld-neck flanges | Typ 34: Weld-neck collars | Typ 12: Hubbed slip-on flanges for welding | |
D: Outside Diameter
K: Diameter of Bolt Circle
L: Diameter of Bolt Hole | A: Outside Diameter of Neck
E: Chamfer
F: Collar thickness | G max: Diameter of Shoulders
R: Corner Radius
N: Neck Diameter
S: Neck Thickness (Preferred value) |
DN | Mating dimensions | A | Bore Diameter | Flange Thickness | E | F | G max | Length | Neck
Diameters | R | S | D | K | L | Bolting | No | Size | B1 | B2 | B3 | C1 | C2 | C3 | C4 | H1 | H2 | H3 | N1 | N2 | N3 | Flange type | | | | 02 | 04 | 01
02
04 | 11
12
13 | 21 | 05 | 02
04 | 32
34 | 05 | 12
13 | 11
34 | 11
34 | 11
34 | 12
13 | 21 | 11
12
13
21 | 11
34 | 50 | 165 | 125 | 18 | 4 | M16 | 60.3 | 61.5 | 65 | 77 | 19 | 18 | 18 | 18 | 5 | 16 | - | 28 | 45 | 8 | 74 | 84 | 84 | 5 | 2.9 | 65 | 185 | 145 | 18 | ** | M16 | 76.1 | 77.5 | 81 | 96 | 20 | 18 | 18 | 18 | 6 | 16 | 55 | 32 | 45 | 10 | 92 | 104 | 104 | 6 | 2.9 | 80 | 200 | 160 | 18 | 8 | M16 | 88.9 | 90.5 | 94 | 108 | 20 | 20 | 20 | 20 | 6 | 16 | 70 | 34 | 50 | 10 | 105 | 118 | 120 | 6 | 3.2 | 100 | 220 | 180 | 18 | 8 | M16 | 114.3 | 116 | 120 | 134 | 22 | 20 | 20 | 20 | 6 | 18 | 90 | 40 | 52 | 12 | 131 | 140 | 140 | 8 | 3.6 | 125 | 250 | 210 | 18 | 8 | M16 | 139.7 | 141.5 | 145 | 162 | 22 | 22 | 22 | 22 | 6 | 18 | 115 | 44 | 55 | 12 | 156 | 168 | 170 | 8 | 4 | 150 | 285 | 240 | 18 | 8 | M20 | 168.3 | 170.5 | 174 | 188 | 24 | 22 | 22 | 22 | 6 | 20 | 140 | 44 | 55 | 12 | 184 | 195 | 190 | 10 | 4.5 | 200 | 340 | 295 | 22 | 12 | M20 | 219.1 | 221.5 | 226 | 240 | 26 | 24 | 24 | 24 | 6 | 20 | 190 | 44 | 62 | 16 | 235 | 246 | 246 | 10 | 5.9 | 250 | 405 | 355 | 26 | 12 | M24 | 273 | 276.5 | 281 | 294 | 29 | 26 | 26 | 26 | 8 | 22 | 235 | 46 | 70 | 16 | 292 | 298 | 296 | 12 | 6.3 | 300 | 460 | 410 | 26 | 12 | M24 | 323.9 | 327.5 | 333 | 348 | 32 | 28 | 28 | 28 | 8 | 24 | 285 | 46 | 78 | 16 | 344 | 350 | 350 | 12 | 7.1 | 350 | 520 | 470 | 26 | 16 | M24 | 355.6 | 359.5 | 365 | 400 | 35 | 30 | 30 | 30 | 8 | 26 | 330 | 57 | 82 | 16 | 390 | 400 | 410 | 12 | 8 | 400 | 580 | 525 | 30 | 16 | M27 | 406.4 | 411 | 416 | 454 | 38 | 32 | 32 | 32 | 8 | 28 | 380 | 63 | 85 | 16 | 445 | 456 | 458 | 12 | 8 | 450 | 640 | 585 | 30 | 20 | M27 | 457 | 462 | 467 | 500 | 42 | 40 | 40 | 40 | 8 | 30 | 425 | 68 | 87 | 16 | 490 | 502 | 516 | 12 | 8 | 500 | 715 | 650 | 33 | 20 | M30 | 508 | 513.5 | 519 | 556 | 46 | 44 | 44 | 44 | 8 | 32 | 475 | 73 | 90 | 16 | 548 | 559 | 576 | 12 | 8 | 600 | 840 | 770 | 36 | 20 | M33 | 610 | 616.5 | 622 | 660 | 52 | 54 | 54 | 54 | 8 | 32 | 575 | 83 | 95 | 18 | 652 | 658 | 690 | 12 | 8.8 | 700 | 910 | 840 | 36 | 24 | M33 | 711.1 | - | - | - | - | 36 | 42 | 48 | - | - | 670 | 83 | 100 | 18 | 755 | 760 | 760 | 12 | 8.8 | 800 | 1025 | 950 | 39 | 24 | M36 | 813 | - | - | - | - | 38 | 42 | 52 | - | - | 770 | 90 | 105 | 20 | 855 | 864 | 862 | 12 | 10 | 900 | 1125 | 1050 | 39 | 28 | M36 | 914 | - | - | - | - | 40 | 44 | 58 | - | - | 860 | 94 | 110 | 20 | 955 | 968 | 962 | 12 | 10 | 1000 | 1255 | 1170 | 42 | 28 | M39 | 1016 | - | - | - | - | 42 | 46 | 64 | - | - | 960 | 100 | 120 | 22 | 1058 | 1072 | 1076 | 16 | 10 | 1200 | 1485 | 1390 | 48 | 32 | M45 | 1219 | - | - | - | - | 48 | 52 | 76 | - | - | 1160 | - | 130 | 30 | 1262 | - | 1282 | 16 | 12.5 | 1400 | 1685 | 1590 | 48 | 36 | M45 | 1422 | - | - | - | - | 52 | 58 | - | - | - | 1346 | - | 145 | 30 | 1465 | - | 1482 | 16 | 14.2 | 1600 | 1930 | 1820 | 56 | 40 | M52 | 1626 | - | - | - | - | 58 | 64 | - | - | - | 1546 | - | 160 | 35 | 1668 | - | 1696 | 16 | 16 | 1800 | 2130 | 2020 | 56 | 44 | M52 | 1829 | - | - | - | - | 62 | 68 | - | - | - | 1746 | - | 170 | 35 | 1870 | - | 1896 | 16 | 17.5 | 2000 | 2345 | 2230 | 62 | 48 | M56 | 2032 | - | - | - | - | 66 | 70 | - | - | - | 1950 | - | 180 | 40 | 2072 | - | 2100 | 16 | 20 |
* For flanges type 21 the outside hub diameter approximately corresponds to the outside pipe diameter.
Note : The p/t rating from EN 1092-1 apply only for flange type 05, 11, 12, 13 and 21 having nominal sizes up to and including DN 600. The p/t rating of all other flanges shall be agreed between the manufacturer and the purchaser. |