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DIN PN25 Forged/Cast Steel Flanges
The flanges with the dimensions of this standard can be used at maximum 120°C temperature with up to 25 bar of working pressure.
- Specification
Unit: mm
* NOTE: Outside diameter of pipe complies with ISO recommendation R64.Pipe
Flange
Neck
Raised Face
Bolts
Arropx.
Weight (kg)
DN
d1
DIN
(ISO)*
D
b
k
h1
d3
DIN
(ISO)
s
r
h2
d4
f
#
Dia. of Bolt
d2
Weld-
ing Nack
Slip- on
Blind
Welding Nack
Slip-on
Blind
10
14
(17.2)
90
16
-
16
60
35
25
(28)
1.8
4
6
40
2
4
M12
1/2"
14
0.66
0.72
0.62
15
20
(21.3)
95
16
16
16
65
38
30
(32)
2
4
6
45
2
4
M12
1/2"
14
0.76
0.81
0.74
20
25
(26.9)
105
18
18
75
40
38
(40)
2.3
4
6
58
2
4
M12
1/2"
14
1.06
1.24
1.05
25
30
(33.7)
115
18
18
18
85
40
42
(45)
2.6
4
6
68
2
4
M12
1/2"
14
1.3
1.38
1.31
32
38
(42.4)
140
18
18
18
100
42
52
(56)
2.6
6
6
78
2
4
M16
5/8"
18
1.88
2.03
1.82
40
44.5
(48.3)
150
18
18
18
110
45
60
(64)
2.6
6
7
88
3
4
M16
5/8"
18
2.33
2.35
2.11
50
57
(60.3)
165
20
20
20
125
48
72
(75)
2.9
6
8
102
3
4
M16
5/8"
18
2.82
3.20
2.91
65
76.1
185
22
22
22
145
52
90
2.9
6
10
122
3
8
M16
5/8"
18
3.74
4.29
4.13
80
88.9
200
24
24
24
160
58
105
3.2
8
12
138
3
8
M16
5/8"
18
4.75
5.88
5.21
100
108 (114)
235
24
24
24
190
65
128
(134)
3.6
8
12
162
3
8
M20
3/4"
23
6.52
7.54
7.08
125
133
(139)
270
26
26
26
220
68
155
(162)
4
8
12
188
3
8
M24
7/8"
27
9.07
10.8
10.4
150
159
(168)
300
28
28
28
250
75
182
(192)
4.5
10
12
218
3
8
M24
7/8"
27
11.8
14.5
13.9
200
216
(219)
360
30
30
30
310
80
244
6.3
10
16
278
3
12
M24
7/8"
27
17
22.3
21.5
250
267
(273)
425
32
32
32
370
88
292
(298)
7.1
12
18
335
3
12
M27
1"
30
24.4
33.5
32.5
300
318
(323)
485
34
34
34
430
92
352
8
12
18
395
4
16
M27
1"
30
31.2
46.3
44.7
350
368
(355)
555
38
38
38
490
100
398
8
12
20
450
4
16
M30
1-1/8"
33
44.2
47.2
68.0
65.9
400
419
(406)
620
40
40
40
550
110
452
8.8
12
20
505
4
16
M33
1-1/4"
36
58
62
89.7
87.0
500
521
(508)
730
44
44
44
660
125
558
10
12
20
615
4
20
M33
1-1/4"
36
89.6
138
134
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