FLANGLES DIMENSION

150 LB. FLANGES

Normal
pipe
size		 Outside
dia. of
flange		 Minimum
thickness
of flange		 Overall Length Bolt
Circle		 No. and
Size of
Holes		 O.D. of
raised
face
Welding
neck		 Slip-on
& socket
welding		 Lap Joint
O Q Y Diam. No. dia. R
1/2 89 11.2 47.6 15.9 15.9 60.5 4 15 35
3/4 117 15.9 57.2 25.4 25.4 82.5 4 15 43
1 108 14.3 55.6 17.5 17.5 79.5 4 15 51
1.1/4 117 15.9 57.2 20.6 20.6 89.0 4 15 64
1.1/2 127 17.5 61.9 22.2 22.2 98.5 4 15 73
2 152 19.1 63.5 25.4 25.4 120.5 4 19 92
2.1/2 178 22.3 69.8 28.6 28.6 139.5 4 19 105
3 190 23.9 69.8 30.2 30.2 152.5 4 19 127
3.1/2 216 23.9 71.4 31.8 31.8 178.0 8 19 140
4 229 23.9 86.2 33.3 33.3 190.5 8 19 157
5 254 23.9 88.9 36.5 36.5 216.0 8 22 186
6 279 25.4 88.9 39.7 39.7 241.5 8 22 216
8 343 28.6 101.6 44.4 44.4 298.5 8 22 270
10 406 30.2 101.6 49.2 49.2 362.0 12 25 324
12 483 31.8 114.3 55.6 55.6 432.0 12 25 381
14 533 35.0 127.0 57.2 79.4 476.0 12 29 413
16 597 36.6 127.0 63.5 87.3 539.5 16 29 470
18 635 39.7 139.7 68.3 96.8 578.0 16 32 533
20 698 42.9 144.5 73.0 103.2 635.0 20 32 584
24 813 47.7 152.4 82.6 111.1 749.5 20 35 692

300 LB. FlANGES :

Normal
pipe
size		 Outside
dia. of
flange		 Minimum
thickness
of flange		 Overall Length Bolt
Circle		 No. and
Size of
Holes		 O.D. of
raised
face
Welding
neck		 Slip-on
& socket
welding		 Lap Joint
O Q Y Diam. No. dia. R
1/2 95 14.3 52.4 22.2 22.2 666.5 4 15 35
3/4 117 15.9 57.2 25.4 25.4 82.4 4 19 43
1 124 17.5 61.9 27.0 27.0 89.0 4 19 51
1-1/4 133 19.1 65.1 27.0 27.0 98.5 4 19 64
1-1/2 156 20.7 68.3 30.2 30.2 114.5 4 22 73
2 165 22.3 69.8 33.3 33.3 127.0 8 19 92
2-1/2 190 25.4 76.2 38.1 38.1 149.0 8 22 105
3 210 28.6 79.4 42.9 42.9 168.0 8 22 127
4 254 318 85.7 47.6 47.6 200.0 8 22 157
5 279 35.0 98.4 50.8 50.8 235.0 8 22 186
6 313 36.6 98.4 52.4 52.4 270.0 12 22 216
6 381 413 111.1 61.9 91.9 330.0 12 25 270
10 444 47.7 117.5 66.7 95.3 387.5 16 29 324
12 521 50.8 130.2 73.0 101.6 451.0 16 32 381
14 584 54.0 142.9 76.2 111.1 514.5 20 32 413
16 648 57.2 146.0 82.6 120.7 571.5 20 35 470
18 711 60.4 158.8 88.9 130.2 628.5 24 35 533
20 775 63.5 161.9 95.2 139.7 686.0 24 35 584
24 914 69.9 168.3 106.4 152.4 843.0 24 41 692

600 LB. FlANGES :

Normal
pipe
size		 Outside
dia. of
flange		 Minimum
thickness of
flange		 Overall Length Bolt Circle No. and
Size of
Holes		 O.D. of
raised
face
Welding neck Slip-on
& socket
welding		 Lap Joint
O Q Y Diam. No. dia. R
1/2 95 14.3 52.4 22.2 22.2 66.5 4 15 35
3/4 117 15.9 57.2 25.4 25.4 82.5 4 19 43
1 124 17.5 61.9 27.0 27.0 89.0 4 19 51
1-1/4 133 20.7 66.7 28.6 28.6 98.5 4 19 64
1-1/2 156 22.3 69.8 31.8 31.8 114.5 4 22 73
2 165 25.4 73.0 36.5 36.5 127.0 8 19 92
2-1/2 190 28.6 79.4 41.3 41.3 149.0 8 22 105
3 210 31.8 82.6 46.0 46.0 168.0 8 22 127
3-1/2 229 35.0 85.7 49.2 49.2 184.0 8 25 140
4 273 38.1 101.6 54.0 54.0 216.0 8 25 157
5 330 44.5 114.3 60.3 60.3 266.5 8 29 186
6 356 47.7 117.5 66.7 66.7 292.0 12 29 216
8 419 55.6 133.4 76.2 76.2 349.0 12 32 270
10 508 63.5 152.4 85.7 115.1 432.0 16 85 324
12 559 66.7 155.6 92.1 111.1 489.0 20 35 381
14 603 69.9 165.1 93.7 117.5 527.0 20 38 413
16 686 76.2 177.8 106.4 127.0 603.0 20 41 470
18 743 82.6 184.2 117.6 139.7 654.0 20 45 533
20 813 88.9 190.5 127.0 165.1 724.0 24 45 584
24 940 101.6 203.2 139.7 184.2 838.0 24 51 692

900 LB. FlANGES :

Normal
pipe
size		 Outside
dia. of
flange		 Minimum
thickness of
flange		 Overall Length Bolt
Circle		 No. and
Size of
Holes		 O.D. of
raised
face
Welding neck Slip-on
&
socket
welding		 Lap Joint
O Q Y Diam. No. dia. R
1/2 121 22.3 60.3 31.8 31.8 82.5 4 22 35
3/4 130 25.4 69.8 34.9 34.9 89.0 4 22 43
1 149 28.6 78.0 41.3 41.3 101.5 4 25 51
1-1/4 159 28.6 78.0 41.3 41.3 111.0 4 25 64
1-1/2 178 31.8 82.6 44.4 44.4 124.0 4 29 78
2 216 38.1 101.6 57.2 57.2 165.0 8 25 92
2-1/2 244 41.3 104.8 63.5 63.5 190.5 8 29 105
8 241 38.1 101.6 54.0 54.0 190.5 8 25 127
3-1/2
4 292 44.5 114.3 69.8 69.8 235.0 8 32 157
5 349 50.8 127.0 79.4 79.4 279.5 8 35 186
6 381 55.6 189.7 85.7 85.7 317.5 12 32 216
8 470 68.5 161.9 101.8 114.3 393.5 12 38 270
10 546 69.9 184.2 108.0 127.0 470.0 16 38 324
12 610 79.4 200.0 117.5 142.9 533.5 20 38 381
14 584 54.0 142.9 76.2 111.1 514.5 20 32 413
16 711 60.4 158.8 88.9 130.2 628.5 24 35 533
20 775 63.5 161.9 95.2 139.7 686.0 24 35 584
24 914 69.9 168.3 106.4 152.4 843.0 24 41 692

1500 LB. FlANGES :

Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness
of flange
Overall Length
Bolt
Circle
No. and
Size of
Holes
O.D.
of raised
face
Welding
neck
Slip-on
&
socket
welding
Lap
Joint
O
Q
Y
Diam.
No.
dia.
R
1/2
121
22.3
60.3
31.8
31.8
82.5
4
22
35
3/4
130
25.4
69.8
34.9
34.9
89.0
4
22
43
1
149
28.6
73.0
41.3
41.3
101.5
4
25
51
1-1/4
159
28.6
73.0
41.3
41.3
111.0
4
25
64
1-1/2
178
31.8
82.6
44.4
44.4
124.0
4
29
73
2
216
38.1
101.6
57.2
57.2
165.0
8
25
92
2-1/2
244
41.3
104.8
63.5
63.5
190.5
8
29
105
3
267
47.7
117.5
73.0
73.0
203.0
8
32
127
3-1/2
4
311
54.0
123.8
90.5
90.5
241.5
8
35
157
5
375
73.1
155.5
104.8
104.8
292.0
8
41
186
6
394
82.6
171.4
119.1
119.1
317.5
12
38
216
8
483
92.1
212.7
142.9
142.9
393.5
12
45
270
10
584
108.0
254.0
158.8
177.8
482.5
12
51
324
12
673
123.9
282.9
181.0
219.1
571.5
16
54
381
14
749
133.4
298.4
-----
241.3
635.0
16
60
413
16
826
146.1
311.2
-----
260.4
705.0
16
51
470
18
914
162.0
327.0
------
276.2
474.5
16
73
538
20
984
117.8
355.4
-----
292.1
832.0
16
80
584
24
1168
203.2
406.4
-----
330.2
990.5
16
92
692

2500 LB. FlANGES :

Normal
pipe
size
Outside
dia. of
flange
Minimum
thickness
of flange
Overall Length
Bolt
Circle
No. and
Size of
Holes
O.D. of
raised
face
Welding
neck
Slip-on
&
socket
welding
Lap
Joint
O
Q
Y
Diam.
No.
dia.
R
1/2
133.4
30.2
73.0
39.7
39.7
88.9
4
22
34.9
3/4
139.7
31.8
79.4
42.9
42.9
95.3
4
22
42.9
1
158.8
34.9
88.9
47.6
47.6
108.0
4
25
50.8
1-1/4
184.2
38.1
95.3
52.4
52.4
130.2
4
29
63.5
1-1/2
203.2
44.5
111.1
60.3
60.3
146.0
4
32
73.0
2
235.0
50.8
127.0
69.9
69.9
171.5
8
29
92.1
2-1/2
266.7
57.2
142.9
79.4
79.4
196.9
8
32
104.8
3
304.8
66.7
168.3
92.1
92.1
228.6
8
35
127.0
3-1/2
4
355.6
76.2
190.5
108.0
108.0
273.0
8
41
157.2
5
419.1
92.1
228.6
130.2
130.2
323.9
8
48
185.7
6
482.6
108.0
273.1
152.4
152.4
268.3
8
54
215.9
8
552.5
127.0
317.5
177.8
177.8
438.2
12
54
269.9
10
673.1
165.1
419.1
228.6
228.6
539.8
12
67
323.9
12
762.0
184.2
463.6
254.0
254.0
619.1
12
73
381.03
14
---
---
---
---
---
---
--
---
---
16
---
---
---
---
---
---
--
---
---
18
---
---
---
---
---
---
--
---
--
20
---
---
---
---
---
---
--
---
--
24
---
---
---
---
---
---
--
---
--

WELDING NECK FLANGES BORES :

Nom.
pipe
Size
Outside
Diam
Light
Wall
6
Sched.
20
Sched.
30
Std.
Wall
Sched.
40
Sched.
60
Extra
Strong
Sched.
80
Sched.
100
Sched.
120
Sched.
140
Sched.
160
 Double
Extra
Strong
1/2
3/4
1
0.840
1.050
1.315
.674
.884
1.097
.....
.....
....
.....
.....
....
0.622
0.824
1.049
0.622
0.824
1.049
.....
.....
....
0.546
0.742
0.957
0.546
0.742
0.957
.....
.....
....
.....
.....
....
.....
.....
....
0.464
0.612
0.815
 0.252
0.434
0.599
1-1/4
1-1/2
2
1.660
1.900
2.375
1.442
1.682
2.157
.....
.....
....
.....
.....
....
1.380
1.610
2.067
1.380
1.610
2.067
.....
.....
....
1.278
1.500
1.939
1.278
1.500
1.939
.....
.....
....
.....
.....
....
.....
.....
....
1.160
1.338
1.687
 0.896
1.100
1.503
2-1/2
3
3-1/2
2.875
3.500
4.000
2.635
3.260
3.760
.....
.....
....
.....
.....
....
2.469
3.068
3.548
2.469
3.068
3.548
.....
.....
....
2.323
2.900
3.364
2.323
2.900
3.364
.....
.....
....
....
....
....
.....
.....
....
2.125
2.624
....
1.771
2.300
2.728
4
5
6
8
4.500
5.563
6.625
8.625
4.260
5.295
6.357
8.329
...
...
...
8.125
...
...
...
8.071
4.026
5.047
6.065
7.981
4.026
5.047
6.065
7.981
...
....
...
7.813
3.826
4.813
5.761
7.625
3.826
4.813
5.761
7.625
...
...
...
7.437
3.624
4.563
5.501
7.187
...
...
...
7.001
3.438
4.313
5.187
6.813
3.152
4.063
4.897
6.875
10
12
14
16
10.750
12.750
14.000
16.000
10.420
12.390
13.500
15.500
10.250
12.250
13.376
15.376
10.136
12.090
13.250
15.250
10.020
12.000
13.250
15.250
10.020
11.938
13.124
15.000
9.750
11.626
12.812
14.688
9.750
11.750
13.000
15.000
9.562
11.374
12.500
14.312
9.312
11.062
12.124
13.938
0.062
10.750
11.814
13.564
8.750
10.500
11.500
13.124
8.500
10.500
11.500
13.124
8.750
10.750
....
....

18
20
24
18.000
20.000
24.000
17.500
19.500
23.500
17.376
19.250
23.250
17.124
19.000
22.876
17.250
19.250
23.250
16.876
18.812
22.624
16.500
18.376
22.062
17.000
19.000
23.000
16.124
17.938
21.562
15.688
17.438
20.938
15.250
17.000
20.376
14.876
16.500
19.876
14.438
16.062
19.312
....
....
....
30
36
42
30.000
36.000
42.000
29.376
35.376
......
29.000
35.000
28.750
34.750
29.250
35.250
41.250
....
34.500
....
....
.....
....
29.000
35.000
41.000
....
.....
....
....
.....
....
....
.....
....
....
.....
....
....
.....
....
....
.....
....

DIN 2527 :
NW
D
Flange
k
Raised Face
Number
Bolts
Bolts
Dia. of
Bolt
Hole
Weight of
One Flange
(7.85 kg/dm3)
b
d4
f
d2
Type-B
kg
Type-C
kg
ND-6
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
14.0
14.0
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")
(3/8")
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
500
440
490
540
645
22
22
22
24
395
445
495
600
365
415
465
570
4
4
4
4
12
12
16
20
M20
M20
M20
M20
(3/4")
(3/4")
(3/4")
(3/4")
23
23
23
23
25.3
31.6
38.4
60.4
24.0
30.1
36.4
58.1
ND-10
(Note from 10 mm to 175 mm see ND-16
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")
(3/4")
(3/4")
23
27
27
40.6
49.4
75.0
38.0
47.5
72.7
ND-16
Note : For DIN 2527 ND-10-4 Holes
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
14
14
16
60
65
75
40
45
58
2
2
2
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
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
M20
(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
ND-25
Note: From 10mm to 150 mm
see ND-40
(175)
200
250
330
360
425
28
30
32
280
310
370
248
278
335
3
3
3
12
12
12
M24
M24
M24
(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
ND-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
110
68
78
88
2
2
2
4
4
4
M12
M12
M12
(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
M27
(1")
(1")
(1-1/8")
30
30
30
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")
(1-1/8")
(1-1/8")
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

DIN 2576 FLANGES, SLIP-ON TYPE FOR BRITISH OR WELDING NOMINAL PRESSURE 10 :

Pipe
Flange
Bolts
Weight of
one flange
7.85 kg/
dm3) kg
NW
d1
ds
D
b1
k
Number
Thread
d2
10
14
17.2)
14.5
17.7
90
14
60
4
M12
(1/2")
14
0.613
0.605
15
20
21.3)
20.5
21.8
95
14
65
4
M12
(1/2")
14
0675
0.669
20
25
26.9)
25.5
27.4
105
16
75
4
M12
(1/2")
14
0.947
0.936
25
30
33.7)
30.5
34.2
115
16
85
4
M12
(1/2")
14
1.14
1.11
32
38
42.4)
38.5
42.9
140
16
100
4
M16
(5/8")
18
1.66
1.62
40
44.5
48.3)
45
48.8
150
16
110
4
M16
(5/8")
18
1.89
1.86
50
57
60.3)
57.5
60.8
165
18
125
4
M16
(5/8")
18
2.51
2.47
65
76.1)
76.6
185
18
145
4
M16
(5/8")
18
3.00
80
88.9)
89.4
200
20
160
4
M16
(5/8")
18
3.79
100
108
114.3)
108.5
114.8
220
20
180
8
M16
(5/8")
18
4.20
4.03
125
133
139.7)
133.5
140.2
250
22
210
8
M16
(5/8")
18
5.71
5.46
150
159
168.3)
159.5
168.8
285
22
210
8
M16
(3/4")
23
6.72
6.57
175
191
193.7)
192
194.7
315
24
270
8
M20
(3/4")
23
8.60
8.45
200
216
219.1)
216
220.1
340
24
295
8
M20
(3/4")
23
9.50
9.31
250
267
273)
268
274
395
26
350
12
M20
(3/4")
23
12.5
11.9
400
406.4
419
407.4
420
565
32
515
16
M24
(7/8")
27
27.9
25.9
500
508)
521
509
522
670
38
620
20
M24
(7/8")
27
37.9
41.1

DIN 2632 WELDING NECK FLANGES FOR NOMINAL PRESSURE 10 :

Pipe
Flange
Neck
Raised
face
Bolts
Weight of
one flange
7.85 kg/dm3)
kg
NW
d1
D
b
k
h1
d3
s
f
h2
d4
f
No.
Thread
d2
200
216
340
24
295
62
232
5.9
10
16
268
3
8
M20
(3/4")
23
11.3
219.1
235
250
267
395
26
350
68
285
6.3
12
16
320
3
12
14.7
273
295
300
318
445
26
400
68
335
7.1
12
16
370
4
17.6
323.9
344
350
355.6
505
26
460
68
385
7.1
12
16
430
4
16
M24
(3/8")
27
368
21.4
400
406.4
565
26
515
72
440
7.1
12
16
482
4
419
26.1
500
508
670
28
620
75
542
7.1
12
16
585
4
20
521
34.7
600
609.6
780
28
725
80
642
7.1
12
18
685
5
M27
(1")
30
622
42.2

DIN 2633 WELDING NECK FLANGES NOMINAL PRESSURE 16 :

Pipe
Flange Neck
Raised
face
Bolts
Weight of
one flange
7.85 kg/dm3)
kg
NW
d1
D
b
k
h1
d3
s
r h2
d4
f
No.
Thread
d2
10
14
90
14
60
35
25
1.8
4 6
40
2
4
M12 (1/2") 14
0.580
17.2
28
15
20
95
14
65
35
30
2
4 6
45
2
0.648
21.3
32
20
25
105
16
85
38
42
2.3
4 6
58
2
0.952
26.9
45
25
30
115
16
85
38
42
2.6
4 6
68
2
1.14
33.7
45
32
38
140
16
100
40
52
2.6
4 6
78
2
M16 (5/8") 18
1.69
42.4
56
40
44.5
150
16
100
40
60
2.6
6 6
88
3
1.86
48.3
64
50
57
165
18
125
45
72
2.9
6 8
102
3
2.53
60.3
75
65
76.1
185
18
145
45
90
2.9
6 10
122
3
306
80
88.9
200
20
160
50
105
3.2
8 10
138
3
4/8
3.70
100
108
220
20
180
52
125
3.6
8 12
158
3
8
4.62
114.3
131
125
133
250
22
210
55
150
4
8 12
188
3
6.30
139.7
156
150
159
285
22
240
55
150
4
8 12
188
3
M20
(3/4")
23
7.75
168.3
156
175
191
315
24
270
60
208
5.4
10 12
242
3
8
M20(3/4")23
10.0
193.7
210
200
216
340
24
295
62
232
5.9
10 16
268
3
12
219.1
235
11.0
250
267
405
26
355
70
285
6.3
12 16
320
3
M24(7/8")27
15.6
273
292
300
318
460
28
410
78
388
7.1
12 16
378
4
22.0
323.9
344
350
355.6
520
30
470
82
390
8
12 16
438
4
16
368
28.7
400
406.4
580
32
525
85
445
8
12 16
490
4
M27
(1")
30
419
36.3
500
508
715
34
650
90
548
8
12 16
610
4
20
M30
(1-1/8")
33
521
59.3
600
609.6
840
36
770
95
652
8.8
12 18
725
5
M33
(1-1/4")
36
622
73.4
700
711.2
910
36
840
100
755
8.8
12 18
795
5
24
720
75.0
800
812.8
1025
38
950
105
855
10
12 20
900
5
M36
(1-3/8")
39
820
99.0
900
914.4
1125
40
1050
110
955
10
12 20
1000
5
28
920
119
1000
1016
1255
42
1170
120
1058
10
16 22
1115
5
M39
(1-1/2")
42
1020
159

DIN 2634 WELDING NECK FLANGE NOMINAL PRESSURE 25 :

Pipe
Flange
Neck
Raised
face
Bolts
Weight of
one flange
(7.85 kg/dm3)
kg.
NW
d1
D
b
k
h1
d3
s
r
h2
d4
f
No.
Thread
d2
175
(191)
330
28
280
75
215
5.6
10
15
248
3
12
M24
(7/8")
27
13.4
193.7
218
200
216
360
30
310
80
240
6.3
10
16
278
3
17.0
219.1
244
250
267
425
32
370
88
292
7.1
12
18
335
3
M27
(1")
30
24.4
273
298
300
318
485
34
430
92
345
8
12
18
395
4
16
323.9
352
31.2
350
355.6
555
38
490
100
398
8
12
20
450
4
M30
(1-1/8")
33
368
45.0
400
406.4
620
40
550
110
452
8.8
12
20
505
4
419
58.7
500
508
730
44
660
125
558
10
12
20
615
4
20
M33
(1-1/4")
36
521
86.1
600
609.6
845
46
770
125
660
11
12
20
720
5
M36
(1-3/8")
39
622
101

DIN 2642, DIN Connections LOOSE FLANGE FOR FLANGE COLLAR PN 10 :

Nom
Pipe
size
Flange
D
mm
d5
mm
b
mm
r
mm
k
mm

Drilling
Number
d2
mm
Weight
kg
Collar
g
mm
10
15
20
90
95
105
16
23
28

16
16
16

5
5
5
60
65
75
4
4
4

15
15
15
0.23
0.26
0.30
45
50
60

25
32
40
115
140
150
33
42
50
16
16
16

5
5
5
85
100
110

4
4
4
15
18
18
0.37
0.54
0.5
70
82
0.92
50
65
80
165
185
200
62
81
94
18
18
20

5
5
5
125
145
160

4
4
4
18
18
18
0.80
0.90
1.28
107
127
142
100
125
150
220
250
285
113
138
164
20
22
22

5
6
6
180
210
240
8
8
8
18
18
22
1.37
1.78
2.27
162
192
218
175
200
250
315
340
395
195
222
273
24
24
26

6
7
7
270
295
350
8
8
12
22
22
22
2.90
3.16
4.22
248
273
328
300
350
400
445
505
565
324
374
426
26
26
32

7
8
8
400
460
515
12
16
16
22
22
25
4.80
5.85
8.45
378
438
490
450
500
600
615
670
780
475
530
630
32
34
36

8
8
10
565
620
725
20
20
20
25
25
30
9.45
11.35
15.30
540
595
695
700
800
895
1015
730
832
40
44
10
10
840
950
24
24
30
34
21.40
30.50
810
916

DIN 2635 WELDING NECK FLANGES NOMINAL PRESSURE 40 :

Pipe
Flange
Neck
Raised
Bolts
Weight of
one flange
7.85 kg/dm3)
kg
NW
d1
D
b
k
h1
d3
s
r
h2
d4
f
No.
Thread
d2
10
14
90
16
60
35
25
1.8
4
6
40
2
4
M12
(1/2")
14
0.661
17.2
28
15
20
95
16
65
38
30
2
4
6
45
2
0.746
21.3
32
20
25
105
18
75
40
38
2.3
4
6
58
2
106
26.9
40
25
30
115
18
85
40
42
2.6
4
6
68
2
1.29
33.7
46
32
38
140
18
100
42
52
2.6
6
6
78
2
1.88
42.4
56
40
44.5
150
18
110
45
60
2.6
6
7
88
3
2.33
48.3
64
50
57
165
20
125
48
72
2.9
6
8
102
3
M16
(5/8")
18
2.82
60.3
75
65
76.1
185
22
145
52
90
2.9
6
10
122
3
3.74
80
88.9
200
24
160
58
105
3.2
8
12
138
3
4.75
100
108
235
24
190
65
128
3.6
8
12
138
3
8
M20
(3/4")
23
6.52
114.3
134
125
133
270
26
220
68
155
4
8
12
188
3
8
M24
(7/8")
27
9.07
139.7
162
150
159
300
28
250
75
182
4.5
10
12
188
3
M24
(7/8")
11.8
168.3
192
175
191
350
32
295
82
215
5.6
10
16
285
3
12
M27
(1")
30
18.2
193.7
218
200
216
375
34
320
88
240
6.3
10
16
285
3
21.5
219.1
244
250
267
450
38
385
105
298
7.1
12
18
345
3
34.9
273
306
300
318
515
42
450
115
352
8
12
18
410
4
16
M30
(1-1/8")
33
49.7
323.9
362
350
355.6
580
46
510
125
408
8.8
12
20
460
4
M33
(1-1/4")
36
368
68.1
400
406.4
660
50
585
135
462
11
12
20
535
4
M36
(1-3/8")
39
419
96.5
500
508
755
52
670
140
562
14.2
12
20
615
4
20
M39
(1-1/2")
42
521
117