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Germany standard flange DIN 2638 welding neck flanges

DataTime:[2014-5-29]

Germany standard flange DIN 2638 welding neck flanges

Germany standard flange DIN 2638 welding neck flanges; nominal pressure 160
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
Number
of
Holes
Bolt
Diameter
d2
ISO Series
DIN Series
10
14
100
20
70
45
28
2
4
6
40
2
4
M12
(1/2")
14
1.09
17.2
32
15
20
105
20
75
45
32
2
4
6
45
2
4
M12
(1/2")
14
1.19
21.3
34
25
30
140
24
100
58
48
2.9
4
8
65
2
4
M16
(5/8")
18
2.66
33.7
52
40
44.5
170
28
125
64
65
3.6
6
10
85
3
4
M20
(3/4")
23
4.3
48.3
70
50
57
195
30
145
75
86
4
6
10
95
3
4
M24
(7/8")
27
6.25
60.3
90
65
7.61
7.61
220
34
170
82
108
5
6
12
105
3
8
M24
(7/8")
27
8.35
80
88.9
88.9
230
36
180
86
120
6.3
8
12
125
3
8
M24
(7/8")
27
9.75
100
108
265
40
210
100
145
8
8
12
145
3
8
M27
(1")
30
14.8
114.3
150
125
146
315
44
250
115
180
10
8
14
185
3
8
M30
(1 1/8")
33
23
139.7
150
171
355
50
290
128
210
12.5
10
14
215
3
12
M30
(1 1/8")
33
32.5
168.3
-175
191
390
54
320
138
245
14.2
10
16
235
3
12
M33
(1 1/4")
36
43.5
193.7
200
216
430
60
360
140
278
16
10
16
260
3
12
M33
(1 1/4")
36
59.4
219.1
250
267
515
68
430
155
340
20
12
18
325
3
12
M39
(1 1/2")
42
94.5
273
300
318
585
78
500
175
400
22.2
12
18
375
4
16
M39
(1 1/2")
42
136

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