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) |
N | 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 | 01, 02, 05, 11, 12, 21 | 11
21*
34 | 01
12
32 | 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 | 10 | 90 | 60 | 14 | 4 | M12 | 17.2 | 18 | 21 | 31 | 14 | 16 | | 16 | 3 | 12 | - | 22 | 35 | 6 | 28 | 30 | 28 | 4 | 1.8 | 15 | 95 | 65 | 14 | 4 | M12 | 21.3 | 22 | 25 | 35 | 14 | 16 | | 16 | 3 | 12 | - | 22 | 38 | 6 | 32 | 35 | 32 | 4 | 2 | 20 | 105 | 75 | 14 | 4 | M12 | 26.9 | 27.5 | 31 | 42 | 16 | 18 | | 18 | 4 | 14 | - | 26 | 40 | 6 | 40 | 45 | 40 | 4 | 2.3 | 25 | 115 | 85 | 14 | 4 | M12 | 33.7 | 34.5 | 38 | 49 | 16 | 18 | | 18 | 4 | 14 | - | 28 | 40 | 6 | 46 | 52 | 52 | 4 | 2.6 | 32 | 140 | 100 | 18 | 4 | M16 | 42.4 | 43.5 | 47 | 59 | 18 | 18 | | 18 | 5 | 14 | - | 30 | 42 | 6 | 56 | 60 | 60 | 6 | 2.6 | 40 | 150 | 110 | 18 | 4 | M16 | 48.3 | 49.5 | 53 | 67 | 18 | 18 | | 18 | 5 | 14 | - | 32 | 45 | 7 | 64 | 70 | 70 | 6 | 2.6 | 50 | 165 | 125 | 18 | 4 | M16 | 60.3 | 61.5 | 65 | 77 | 20 | 20 | | 20 | 5 | 16 | - | 34 | 48 | 8 | 75 | 84 | 84 | 6 | 2.9 | 65 | 185 | 145 | 18 | 8 | M16 | 76.1 | 77.5 | 81 | 96 | 22 | 22 | | 22 | 6 | 16 | 55 | 38 | 52 | 10 | 90 | 104 | 104 | 6 | 2.9 | 80 | 200 | 160 | 18 | 8 | M16 | 88.9 | 90.5 | 94 | 114 | 24 | 24 | | 24 | 6 | 18 | 70 | 40 | 58 | 12 | 105 | 118 | 120 | 8 | 3.2 | 100 | 235 | 190 | 22 | 8 | M20 | 114.3 | 116 | 120 | 138 | 26 | 24 | | 24 | 6 | 20 | 90 | 44 | 65 | 12 | 134 | 145 | 142 | 8 | 3.6 | 125 | 270 | 220 | 26 | 8 | M24 | 139.7 | 141.5 | 145 | 166 | 28 | 26 | | 26 | 6 | 22 | 115 | 48 | 68 | 12 | 162 | 170 | 162 | 8 | 4 | 150 | 300 | 250 | 26 | 8 | M24 | 168.3 | 170.5 | 174 | 194 | 30 | 28 | | 28 | 6 | 24 | 140 | 52 | 75 | 12 | 192 | 200 | 192 | 10 | 4.5 | 200 | 375 | 320 | 30 | 12 | M27 | 219.1 | 221.5 | 226 | 250 | 36 | 34 | | 36 | 6 | 28 | 190 | 52 | 88 | 16 | 244 | 260 | 254 | 10 | 6.3 | 250 | 450 | 385 | 33 | 12 | M30 | 273 | 276.5 | 281 | 312 | 42 | 38 | | 38 | 8 | 30 | 235 | 60 | 105 | 18 | 306 | 312 | 312 | 12 | 7.1 | 300 | 515 | 450 | 33 | 16 | M30 | 323.9 | 327.5 | 333 | 368 | 48 | 42 | | 42 | 8 | 34 | 285 | 67 | 115 | 18 | 362 | 380 | 378 | 12 | 8 | 350 | 580 | 510 | 36 | 16 | M33 | 355.6 | 359.5 | 365 | 418 | 54 | 46 | | 46 | 8 | 36 | 330 | 72 | 125 | 20 | 408 | 424 | 432 | 12 | 8.8 | 400 | 660 | 585 | 39 | 16 | M36 | 406.4 | 411 | 416 | 472 | 60 | 50 | | 50 | 8 | 42 | 380 | 78 | 135 | 20 | 462 | 478 | 498 | 12 | 11 | 450 | 685 | 610 | 39 | 20 | M36 | 457 | 462 | 467 | 510 | 66 | 57 | | 57 | 8 | 46 | 425 | 84 | 135 | 20 | 500 | 522 | 522 | 12 | 12.5 | 500 | 755 | 670 | 42 | 20 | M39 | 508 | 513.5 | 519 | 572 | 72 | 57 | | 57 | 8 | 50 | 475 | 90 | 140 | 20 | 562 | 576 | 576 | 12 | 14.2 | 600 | 890 | 795 | 48 | 20 | M45 | 610 | 616.5 | 622 | 676 | 84 | 72 | | 72 | 8 | 54 | 575 | 100 | 150 | 20 | 666 | 686 | 686 | 12 | 16 |
* 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. |