DIN FLANGE DIN 2628
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(Dimensions in mm)
| Nominal Pressure 250 | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Pipe | Flange | Neck | Raised Face | Drilling | Approx. Weight (7.85 kg/dm3) kg |
|||||||||||||
| Nominal Size |
d1 | D | b | k | h1 | d3 | s | r1 | h2 | d4 | f | r2 | d51) | Number of Holes |
Bolt Diameter |
d2 | ||
| 15 | 20 21.3 |
130 | 26 | 90 | 60 | 48 | 2.6 | 4 | 6 | 45 | 2 | 1 | 24 | 4 | M16 | (5/8") | 18 | 2.47 |
| 25 | 30 33.7*) |
150 | 28 | 105 | 65 | 60 | 3.6 | 4 | 8 | 65 | 2 | 1 | 35 | 4 | M20 | (3/4") | 23 | 3.51 |
| 40 | 44.5 48.3*) |
185 | 34 | 135 | 80 | 84 | 5 | 6 | 10 | 85 | 3 | 1.5 | 52 | 4 | M24 | (7/8") | 27 | 6.45 |
| 50 | 57 60.3*) |
200 | 38 | 150 | 85 | 95 | 6.3 | 6 | 10 | 95 | 3 | 1.5 | 63 | 8 | M24 | (7/8") | 27 | 7.85 |
| 65 | 76.1*) | 230 | 42 | 180 | 95 | 124 | 8 | 6 | 12 | 105 | 3 | 1.5 | 85 | 8 | M24 | (78/") | 27 | 12.2 |
| 80 | 95 101.6*) |
255 | 46 | 200 | 102 | 136 | 11 | 8 | 12 | 130 | 3 | 1.5 | 97 | 8 | M27 | (1") | 30 | 16.0 |
| 100 | 121 127*) |
300 | 54 | 235 | 120 | 164 | 14.2 | 8 | 14 | 160 | 3 | 1.5 | 124 | 8 | M30 | (1 1/8") | 33 | 26.3 |
| 125 | (146) 152.4*) |
340 | 60 | 275 | 140 | 200 | 16 | 8 | 16 | 185 | 3 | 1.5 | 153 | 12 | M30 | (1 1/8") | 33 | 37.8 |
| 150 | (171) 177.8*) |
390 | 68 | 320 | 160 | 240 | 17.5 | 10 | 18 | 215 | 3 | 1.5 | 181 | 12 | M33 | (1 1/4") | 36 | 58.0 |
| (175) | 216 219.1*) |
430 | 74 | 355 | 170 | 270 | 22.2 | 10 | 22 | 270 | 3 | 1.5 | 218 | 12 | M36 | (1 3/8") | 39 | 73.6 |
| 200 | (241) 244.5*) |
485 | 82 | 400 | 190 | 305 | 25 | 10 | 25 | 300 | 3 | 1.5 | 243 | 12 | M39 | (1 1/2") | 42 | 105 |
| 250 | (292) 298.5*) |
585 | 100 | 490 | 215 | 385 | 32 | 12 | 30 | 350 | 3 | 1.5 | 298 | 16 | M45 | (1 3/4") | 48 | 182 |
Size in parentheses should preferably be avoided.
*) Outer dimameter of pipe corresponds to ISO
recommendation R64.
1) Diameter for the lens sealing by DIN 2696. Refer to DIN
2696 for nomianl size 10.
Material (to be specified by orderer):
RSt. 42-2 by DIN 17100 for temperature 300 °C
Weldable heat-treated steel for temperature > 300 °C.
Process: Machining the outside diameter, bore, gasket
surface, bevel end for welding, spot face for nut,
and bolt holes.
Marking: Every flange should be marked with the following
data at the outside diameter :
Company mark, nominal size, nominal pressure,
and material.
ANSI Dimension
Flanges inventory: