各种标准法兰尺寸对照 ：
GB/T 10002.1-96，GB/T 10002.2-03，GB/T4219-96，GB/T10002.3-96，QB/T 3802-1999
|
公称
通径
|
PN16（GB 4216.4-84)
|
PN10 (GB 4216.4 - 84)
|
PN6(GB 4216.3 - 84)
|
|
外圆
|
孔距
|
螺栓
|
孔数
|
外圆
|
孔距
|
螺栓
|
孔数
|
外圆
|
孔距
|
螺栓
|
孔数
|
|
15
|
|
|
|
|
95
|
65
|
M12
|
4
|
|
|
|
|
|
20
|
|
|
|
|
105
|
75
|
M12
|
4
|
|
|
|
|
|
25
|
|
|
|
|
115
|
85
|
M12
|
4
|
|
|
|
|
|
32
|
|
|
|
|
140
|
100
|
M16
|
4
|
|
|
|
|
|
40
|
150
|
110
|
M16
|
4
|
150
|
110
|
M16
|
4
|
130
|
100
|
M12
|
4
|
|
50
|
165
|
125
|
M16
|
4
|
165
|
125
|
M16
|
4
|
140
|
110
|
M12
|
4
|
|
65
|
185
|
145
|
M16
|
4
|
185
|
145
|
M16
|
4
|
160
|
130
|
M12
|
4
|
|
80
|
200
|
160
|
M16
|
8
|
200
|
160
|
M16
|
8
|
190
|
150
|
M16
|
4
|
|
100
|
220
|
180
|
M16
|
8
|
220
|
180
|
M16
|
8
|
210
|
170
|
M16
|
4
|
|
125
|
250
|
210
|
M16
|
8
|
250
|
210
|
M16
|
8
|
240
|
200
|
M16
|
8
|
|
150
|
285
|
240
|
M20
|
8
|
285
|
240
|
M20
|
8
|
265
|
225
|
M16
|
8
|
|
200
|
340
|
295
|
M20
|
12
|
340
|
295
|
M20
|
8
|
320
|
280
|
M16
|
8
|
|
250
|
405
|
355
|
M24
|
12
|
395
|
350
|
M20
|
12
|
375
|
335
|
M16
|
12
|
|
300
|
460
|
410
|
M24
|
12
|
445
|
400
|
M20
|
12
|
440
|
395
|
M20
|
12
|
|
350
|
520
|
460
|
M24
|
16
|
505
|
460
|
M20
|
16
|
490
|
445
|
M20
|
12
|
|
400
|
580
|
525
|
M27
|
16
|
565
|
515
|
M24
|
16
|
540
|
495
|
M20
|
16
|
|
|
|
DIN PN10 \ JIS 10K \ANSI 150LBS 法兰尺寸对照表
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|
尺寸
|
1/2"
|
3/4"
|
1"
|
11/4"
|
11/2"
|
2"
|
21/2"
|
3"
|
4"
|
5"
|
6"
|
8"
|
10"
|
12"
|
|
承插口径
|
DIN
|
20
|
25
|
32
|
40
|
50
|
63
|
75
|
90
|
110
|
140
|
160
|
225
|
250
|
315
|
|
ANSI
|
21.3
|
26.7
|
33.4
|
42.2
|
48.3
|
60.3
|
73
|
88.9
|
114.3
|
141.3
|
168.3
|
219.1
|
273.1
|
323.9
|
|
JIS
|
22
|
26
|
32
|
38
|
48
|
60
|
76
|
89
|
114
|
140
|
165
|
216
|
267
|
318
|
|
螺孔距
|
DIN
|
65
|
75
|
85
|
100
|
110
|
125
|
145
|
160
|
180
|
210
|
240
|
295
|
350
|
400
|
|
ANSI
|
60
|
70
|
79
|
89
|
98
|
121
|
140
|
152
|
191
|
215.9
|
241
|
298
|
362
|
432
|
|
JIS
|
70
|
75
|
900
|
100
|
105
|
120
|
140
|
150
|
175
|
210
|
240
|
290
|
355
|
400
|
|
螺孔数/直径
|
DIN
|
4-14
|
4-18
|
8-18
|
8-23
|
12-23
|
|
ANSI
|
4-16
|
4-19
|
8-19
|
8-22
|
12-24
|
12-25
|
|
JIS
|
4-15
|
4-19
|
8-19
|
8-23
|
12-23
|
12-25
|
16-25
|
|
法兰外圆直径
|
DIN
|
95
|
105
|
115
|
140
|
150
|
165
|
185
|
200
|
220
|
250
|
285
|
340
|
396
|
445
|
|
ANSI
|
89
|
98
|
108
|
117
|
127
|
152
|
178
|
191
|
229
|
254
|
284
|
343
|
406
|
481
|
|
JIS
|
95
|
100
|
125
|
135
|
140
|
155
|
175
|
185
|
210
|
250
|
280
|
330
|
400
|
445
|
|
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内容编辑