公称通径
DN
|
钢管外径(法兰焊端外径)A1
|
连接尺寸
|
法兰厚度
C
|
法兰颈
|
法兰高度
H
|
|||||||||
A
|
B
|
法兰外径
D
|
螺栓孔中心圆直径
K
|
螺栓孔直径
L
|
螺栓孔数量
|
螺纹
T
|
N
|
S
|
H1
≈
|
R
|
||||
A
|
B
|
|||||||||||||
10
|
17.2
|
14
|
90
|
60
|
14
|
4
|
M12
|
14
|
28
|
28
|
2
|
6
|
3
|
35
|
15
|
21.3
|
18
|
95
|
65
|
14
|
4
|
M12
|
14
|
32
|
32
|
2
|
6
|
3
|
38
|
20
|
26.9
|
25
|
105
|
75
|
14
|
4
|
M12
|
16
|
40
|
40
|
2.3
|
6
|
4
|
40
|
25
|
33.7
|
32
|
115
|
85
|
14
|
4
|
M12
|
16
|
46
|
46
|
2.6
|
6
|
4
|
40
|
32
|
42.4
|
38
|
140
|
100
|
18
|
4
|
M16
|
18
|
56
|
56
|
2.6
|
6
|
5
|
42
|
40
|
48.3
|
45
|
150
|
110
|
18
|
4
|
M16
|
18
|
64
|
64
|
2.6
|
7
|
5
|
45
|
50
|
60.3
|
57
|
165
|
125
|
18
|
4
|
M16
|
20
|
74
|
74
|
2.9
|
8
|
5
|
48
|
65
|
76.1
|
76
|
185
|
145
|
18
|
4
|
M16
|
20
|
92
|
92
|
2.9
|
10
|
6
|
48
|
80
|
88.9
|
89
|
200
|
160
|
18
|
8
|
M16
|
20
|
110
|
110
|
3.2
|
10
|
6
|
50
|
100
|
114.3
|
108
|
220
|
180
|
18
|
8
|
M16
|
22
|
130
|
130
|
3.6
|
12
|
6
|
52
|
125
|
139.7
|
133
|
250
|
210
|
18
|
8
|
M16
|
22
|
158
|
158
|
4
|
12
|
6
|
55
|
150
|
168.3
|
159
|
285
|
240
|
22
|
8
|
M20
|
24
|
184
|
184
|
4.5
|
12
|
8
|
55
|
200
|
219.1
|
219
|
340
|
295
|
22
|
12
|
M20
|
24
|
234
|
234
|
6.3
|
16
|
8
|
62
|
250
|
273
|
273
|
405
|
355
|
26
|
12
|
M24
|
26
|
288
|
288
|
6.3
|
16
|
10
|
70
|
300
|
323.9
|
325
|
460
|
410
|
26
|
12
|
M24
|
28
|
342
|
342
|
7.1
|
16
|
10
|
78
|
350
|
355.6
|
377
|
520
|
470
|
26
|
16
|
M24
|
30
|
390
|
410
|
8
|
16
|
10
|
82
|
400
|
406.4
|
426
|
580
|
525
|
30
|
16
|
M27
|
32
|
444
|
464
|
8.8
|
16
|
10
|
85
|
450
|
457
|
480
|
640
|
585
|
30
|
20
|
M27
|
34
|
490
|
512
|
10
|
16
|
12
|
87
|
500
|
508
|
530
|
715
|
650
|
33
|
20
|
M30x2
|
34
|
546
|
578
|
11
|
16
|
12
|
90
|
600
|
610
|
630
|
840
|
770
|
36
|
20
|
M33x2
|
36
|
650
|
670
|
12.5
|
18
|
12
|
95
|
700
|
711
|
720
|
910
|
840
|
36
|
24
|
M33x2
|
38
|
750
|
759
|
12.5
|
18
|
12
|
100
|
800
|
813
|
820
|
1025
|
950
|
39
|
24
|
M36x3
|
38
|
848
|
855
|
12.5
|
20
|
12
|
105
|
900
|
914
|
920
|
1125
|
1050
|
39
|
28
|
M36x3
|
40
|
948
|
954
|
12.5
|
20
|
12
|
110
|
1000
|
1016
|
1020
|
1255
|
1170
|
42
|
28
|
M39x3
|
42
|
1056
|
1060
|
12.5
|
22
|
12
|
120
|
1200
|
1219
|
1220
|
1485
|
1390
|
48
|
32
|
M45x3
|
48
|
1260
|
1260
|
12.5
|
30
|
12
|
130
|
1400
|
1422
|
1420
|
1685
|
1590
|
48
|
36
|
M45x3
|
52
|
1467
|
1465
|
14.2
|
30
|
12
|
145
|
1600
|
1626
|
1620
|
1930
|
1820
|
55
|
40
|
M52x4
|
58
|
1674
|
1668
|
16
|
35
|
12
|
160
|
1800
|
1829
|
1820
|
2130
|
2020
|
55
|
44
|
M52x4
|
62
|
1879
|
1870
|
17.5
|
35
|
15
|
170
|
2000
|
2032
|
2020
|
2345
|
2230
|
60
|
48
|
M56x4
|
66
|
2084
|
2072
|
20
|
40
|
15
|
190
|
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