异径接头尺寸 (摘自GB/T12459-1990)
公称通径
獶N
|
端 部 外 径
|
长 度
L
|
D1
|
D2
|
A系列
|
B系列
|
A系列
|
B系列
|
20×15
|
26.9
|
25
|
21.3
|
18
|
38
|
25×20
|
33.7
|
32
|
26.9
|
25
|
51
|
25×15
|
33.7
|
32
|
21.3
|
18
|
51
|
32×25
|
42.4
|
38
|
33.7
|
32
|
51
|
32×20
|
42.4
|
38
|
26.9
|
25
|
51
|
32×15
|
42.4
|
38
|
21.3
|
18
|
51
|
40×32
|
48.3
|
45
|
42.4
|
38
|
64
|
40×25
|
48.3
|
45
|
33.7
|
32
|
64
|
40×20
|
48.3
|
45
|
26.9
|
25
|
64
|
40×15
|
48.3
|
45
|
21.3
|
18
|
64
|
50×40
|
60.3
|
57
|
48.3
|
45
|
76
|
50×32
|
60.3
|
57
|
42.4
|
38
|
76
|
50×25
|
60.3
|
57
|
33.7
|
32
|
76
|
50×20
|
60.3
|
57
|
26.9
|
25
|
76
|
65×50
|
76.1(73)
|
76
|
60.3
|
57
|
89
|
65×40
|
76.1(73)
|
76
|
48.3
|
45
|
89
|
65×32
|
76.1(73)
|
76
|
42.4
|
38
|
89
|
65×25
|
76.1(73)
|
76
|
33.7
|
32
|
89
|
80×65
|
88.9
|
89
|
76.1(73)
|
76
|
89
|
80×50
|
88.9
|
89
|
60.3
|
57
|
89
|
80×40
|
88.9
|
89
|
48.3
|
45
|
89
|
80×32
|
88.9
|
89
|
42.4
|
38
|
89
|
90×80
|
101.6
|
—
|
88.9
|
—
|
102
|
90×65
|
101.6
|
—
|
76.1(73)
|
—
|
102
|
90×50
|
101.6
|
—
|
60.3
|
—
|
102
|
90×40
|
101.6
|
—
|
48.3
|
—
|
102
|
90×32
|
101.6
|
—
|
42.4
|
—
|
102
|
100×90
|
114.3
|
—
|
101.6
|
—
|
102
|
100×80
|
114.3
|
108
|
88.9
|
89
|
102
|
100×65
|
114.3
|
108
|
76.1(73)
|
76
|
102
|
100×50
|
114.3
|
108
|
60.3
|
57
|
102
|
100×40
|
114.3
|
108
|
48.3
|
45
|
102
|
125×100
|
139.7
|
133
|
114.3
|
108
|
127
|
125×90
|
139.7
|
—
|
101.6
|
—
|
127
|
125×80
|
139.7
|
133
|
88.9
|
89
|
127
|
125×65
|
139.7
|
133
|
76.1(73)
|
76
|
127
|
125×50
|
139.7
|
133
|
60.3
|
57
|
127
|
150×125
|
168.3
|
159
|
139.7
|
133
|
140
|
150×100
|
168.3
|
159
|
114.3
|
108
|
140
|
150×90
|
168.3
|
—
|
101.6
|
—
|
140
|
150×80
|
168.3
|
159
|
88.9
|
89
|
140
|
150×65
|
168.3
|
159
|
76.1(73)
|
76
|
140
|
200×150
|
219.1
|
219
|
168.3
|
159
|
152
|
200×125
|
219.1
|
219
|
139.7
|
133
|
152
|
200×100
|
219.1
|
219
|
114.3
|
108
|
152
|
200×90
|
219.1
|
—
|
101.6
|
—
|
152
|
250×200
|
273.0
|
273
|
219.1
|
219
|
178
|
250×150
|
273.0
|
273
|
168.3
|
159
|
178
|
250×125
|
273.0
|
273
|
139.7
|
133
|
178
|
250×100
|
273.0
|
273
|
114.3
|
108
|
178
|
300×250
|
323.9
|
325
|
273.0
|
273
|
203
|
300×200
|
323.9
|
325
|
219.1
|
219
|
203
|
300×150
|
323.9
|
325
|
168.3
|
159
|
203
|
300×125
|
323.9
|
325
|
139.7
|
133
|
203
|
350×300
|
355.6
|
377
|
323.9
|
325
|
330
|
350×250
|
355.6
|
377
|
273.0
|
273
|
330
|
350×200
|
355.6
|
377
|
219.1
|
219
|
330
|
350×150
|
355.6
|
377
|
168.3
|
159
|
330
|
400×350
|
406.4
|
426
|
355.6
|
377
|
356
|
400×300
|
406.4
|
426
|
323.9
|
325
|
356
|
400×250
|
406.4
|
426
|
273.0
|
273
|
356
|
400×200
|
406.4
|
426
|
219.1
|
219
|
356
|
450×400
|
457.2
|
478
|
406.4
|
426
|
381
|
450×350
|
457.2
|
478
|
355.6
|
377
|
381
|
450×300
|
457.2
|
478
|
323.9
|
325
|
381
|
450×250
|
457.2
|
478
|
273.0
|
273
|
381
|
500×450
|
508.0
|
529
|
457.0
|
478
|
508
|
500×400
|
508.0
|
529
|
406.4
|
426
|
508
|
500×350
|
508.0
|
529
|
355.6
|
377
|
508
|
500×300
|
508.0
|
529
|
323.9
|
325
|
508
|
