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6BAR
 　DIN 2573 Slip-On Flanges
　DIN 2527 Blind Flanges
　DIN 2631 Welding Neck Flanges

 
BORE
COMMON DIMENSION
HUB
RAISED FACE
DRILLING
NOMINAL BORE
d1
D
t
k
T
d3
s
r
a
d4
f
NUMBER OF BOLT
X
d2
welding neck
slip on
blind
10
14 17.2 *)
75
12
12
12
50
28
22
26
1.8
4
6
35
2
4
M10
-
11.5
15
20 21.3*)
80
12
12
12
55
30
28
30
2.0
4
6
40
2
4
M10
-
11.5
20
25 26.9 *)
90 100
14
14
14
65
32
35
38
2.3
4
6
50
2
4
M10
-
11.5
25
30 33.7*)
120 130
14
14
14
75
35
40
42
2.6
4
6
60
2
4
M10
-
11.5
32
38 42.4*)
140 160
14
16
14
90
35
50
55
2.6
6
6
70
2
4
M12
(1/2")
14
40
44.5 48.3*)
190 210
14
16
14
100
38
58
62
2.6
6
7
80
3
4
M12
(1/2")
14
50
57 60.3*)
240 265
14
16
14
110
38
70
2.9
6
8
90
3
4
M12
(1/2")
14
65
76.1*)
320 375
14
16
14
130
38
74
88
2.9
6
9
110
3
4
M12
(1/2")
14
80
88.9*)
440 490
16
18
16
150
42
102
3.2
8
10
128
3
4
M16
(1/2")
18
100
108 114.3*)
540 645
16
18
16
170
45
122
130
3.6
8
10
148
3
4
M16
(5/8")
18
125
133 139.7*)
755 860
18
20
18
200
48
148
155
4.0
8
10
178
3
8
M16
(5/8")
18
150
159 168.3*)
975
18
20
18
225
48
172
184
4.5
10
12
202
3
8
M16
(5/8")
18
200
216 219.1*)
1075
20
22
20
280
55
230
236
5.9
10
15
258
3
8
M16
(5/8")
18
250
267 273*)
　
22
24
22
335
60
2825
290
6.2
12
15
312
3
12
M16
(5/8")
18
300
318 323.9*)
1175
22
24
22
395
62
335
342
7.1
12
15
365
4
12
M20
(3/4")
23
350
355.6 *) 368
　
22
26
22
445
62
385
7.1
12
15
415
4
12
M20
(3/4")
23
400
406.4*) 419
　
22
28
22
495
65
438
7.1
12
15
455
4
16
M20
(3/4")
23
500
508*) 521
　
24
30
24
600
68
538
7.1
12
15
570
4
20
M20
(3/4")
23
600
609.6*) 622
　
24
　
　
705
70
640
7.1
12
16
670
5
20
M24
(7/8")
27
700
711.2*) 720
　
24
　
　
810
70
740
7.1
12
16
775
5
24
M24
(7/8")
27
800
812.8*) 820
　
24
　
　
920
70
842
7.1
12
16
880
5
24
M27
(1")
30
900
914.4*) 920
　
26
　
　
1020
70
942
7.1
12
16
980
5
24
M27
(1")
30
1000
1016*) 1020
　
26
　
　
1120
70
1045
7.1
16
16
1080
5
28
M27
(1")
30
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