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DIN2527 Flange dimensions

DIN FLANGE DIN 2527 Nominal Pressure 6 to 40

(Dimensions in mm)
Nominal Pressure 6
Size Flange Raised Face Drilling Approx. Weight
(7.85 kg/dm3) for




D b k d4 f Number
of Holes		 Bolt Diameter d2 Form B kg Form C kg




10
15
20		 75
80
90		 12
12
14		 50
55
65		 35
40
50		 2
2
2		 4
4
4		 M10
M10
M10		 -
-
-		 11.5
11.5
11.5		 0.38
0.44
0.65		 0.33
0.38
0.59




25
32
40		 100
120
130		 14
14
14		 75
90
100		 60
70
80		 2
2
3		 4
4
4		 M10
M12
M12		 -
(1/2")
(1/2")		 11.5
14
14		 0.82
1.17
1.39		 0.74
1.07
1.21




50
65
80		 140
160
190		 14
14
16		 110
130
150		 90
110
128		 3
3
3		 4
4
4		 M12
M12
M16		 (1/2")
(1/2")
(5/8")		 14
14
18		 1.62
2.44
3.43		 1.43
2.21
3.09




100
125
150		 210
240
265		 16
18
18		 170
200
225		 148
178
202		 3
3
3		 4
8
8		 M16
M16
M16		 (5/8")
(5/8")
(5/8")		 18
18
18		 4.76
6.11
7.51		 4.37
5.68
7.02




(175)
200
250		 295
320
375		 20
20
22		 255
280
335		 232
258
312		 3
3
3		 8
8
12		 M16
M16
M16		 (5/8")
(5/8")
(5/8")		 18
18
18		 10.4
12.3
18.3		 9.85
11.7
17.6




300
350
400		 440
490
540		 22
22
22		 395
445
495		 365
415
465		 4
4
4		 12
12
16		 M20
M20
M20		 (3/4")
(3/4")
(3/4")		 23
23
23		 25.3
31.6
38.4		 24.0
30.1
36.4




500 645 24 600 570 4 20 M20 (3/4") 23 60.4 58.1




Nominal Pressure 10




200
250
300		 340
395
445		 24
26
26		 295
350
400		 268
320
370		 3
3
4		 8
12
12		 M20
M20
M20		 (3/4")
(3/4")
(3/4")		 23
23
23		 16.5
24.0
30.9		 15.6
23.1
29.4




350
400
500		 505
565
670		 26
26
28		 460
515
620		 430
482
585		 4
4
4		 16
16
20		 M20
M24
M24		 (3/4")
(7/8")
(7/8")		 23
27
27		 40.6
49.4
75.0		 38.0
47.5
72.7






Nominal Pressure 16 *) 4 bolts for nominal pressure 10, DIN 2527
Size Flange Raised Face Drilling Approx. Weight
(7.85 kg/dm3) for
D b k d4 f Number
of Holes		 Bolt Diameter d2 Form B kg Form C kg
10
15
20		 90
95
105		 14
14
16		 60
65
75		 40
45
58		 2
2
2		 4
4
4		 M12
M12
M12		 (1/2")
(1/2")
(1/2")		 14
14
14		 0.63
0.72
1.01		 0.56
0.64
0.93
25
32
40		 115
140
150		 16
16
16		 85
100
110		 68
78
88		 2
2
3		 4
4
4		 M12
M16
M16		 (1/2")
(5/8")
(5/8")		 14
18
18		 1.23
1.80
2.09		 1.13
1.66
1.85
50
65
80		 165
185
200		 18
18
20		 125
145
160		 102
122
138		 3
3
3		 4
4
4/8*		 M16
M16
M16		 (5/8")
(5/8")
(5/8")		 18
18
18		 2.88
3.66
4.77		 2.59
3.33
4.34
100
125
150		 220
250
285		 20
22
22		 180
210
240		 158
188
212		 3
3
3		 8
8
8		 M16
M16
M20		 (5/8")
(5/8")
(3/4")		 18
18
23		 5.65
8.42
10.4		 5.26
7.67
9.85
(175)
200
250		 315
340
405		 24
24
26		 270
295
355		 242
268
320		 3
3
3		 8
12
12		 M20
M20
M24		 (3/4")
(3/4")
(7/8")		 23
23
27		 14.0
16.1
24.9		 13.5
15.6
23.9
300
350
400		 460
520
580		 28
30
32		 410
470
525		 378
438
490		 4
4
4		 12
16
16		 M24
M24
M27		 (7/8")
(7/8")
(1")		 27
27
30		 35.1
47.8
63.5		 33.6
46.2
61.5
500 715 34 650 610 4 20 M30 (1 1/8") 33 102 99.5
Nominal Pressure 25 For nominal size 10-150, refer to nominal pressure 40.
(175)
200
250		 330
360
425		 28
30
32		 280
310
370		 248
278
335		 3
3
3		 12
12
12		 M24
M24
M27		 (7/8")
(7/8")
(1")		 27
27
30		 17.3
22.3
33.5		 16.5
21.5
32.5
300
350
400		 485
555
620		 34
38
40		 430
490
550		 395
450
505		 4
4
4		 16
16
16		 M27
M30
M33		 (1")
(1 1/8")
(1 1/4")		 30
33
36		 46.3
68.0
89.7		 44.7
65.9
87.0
500 730 44 660 615 4 20 M33 (1 1/4") 36 138 134
Nominal Pressure 40
10
15
20		 90
95
105		 16
16
16		 60
65
75		 40
45
58		 2
2
2		 4
4
4		 M12
M12
M12		 (1/2")
(1/2")
(1/2")		 14
14
14		 0.72
0.81
1.24		 0.62
0.74
1.05
25
32
40		 115
140
150		 18
18
18		 85
100
115		 68
78
88		 2
2
3		 4
4
4		 M12
M16
M16		 (1/2")
(5/8")
(5/8")		 14
18
18		 1.38
2.03
2.35		 1.31
1.82
2.11
50
65
80		 165
185
200		 20
22
24		 125
145
160		 102
122
138		 3
3
3		 4
8
8		 M16
M16
M16		 (5/8")
(5/8")
(5/8")		 18
18
18		 3.20
4.29
5.88		 2.91
4.13
5.21
100
125
150		 235
270
300		 24
26
28		 190
220
250		 162
188
218		 3
3
3		 8
8
8		 M20
M24
M24		 (3/4")
(7/8")
(7/8")		 23
27
27		 7.54
10.8
14.5		 7.08
10.4
13.9
(175)
200
250		 350
375
450		 32
34
38		 295
320
385		 260
285
345		 3
3
3		 12
12
12		 M27
M27
M30		 (1")
(1")
(1 1/8")		 30
30
33		 22.1
27.2
43.8		 21.3
26.2
43.1
300
350
400		 515
580
660		 42
46
50		 450
510
585		 410
465
535		 4
4
4		 16
16
16		 M30
M33
M36		 (1 1/8")
(1 1/4")
(1 3/8")		 33
36
39		 63.3
89.5
127		 62.2
87.2
124
500 755 52 670 615 4 20 M39 (1 1/2") 42 172 168
Nominal size in parentheses should preferably be avoided. Screw thread size in parentheses shall not be used for new construction.
Material: St 37 of DIN 17100 (For other material, please specify in the order sheet).
St 37-2 for 12 °C to 300 °C temperature; Heat-treated steel for temperature over 300 °C,

e.g., C22N or alloyed steel as mentioned for pipes of DIN 17175.


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