变 径 管

D1
D2
L0
0.6MPa
1.0MPa
1.6MPa
TH
TH
TH
15
10
37.5
5.5
5.5
5.5
20
15
37.5
5.5
5.5
5.5
25
20
37.5
5.5
5.5
5.5
32
25
37.5
5.5
5.5
5.5
40
32
37.5
5.5
5.5
5.5
50
40
37.5
5.5
5.5
5.5
65
50
37.5
5.5
5.5
5.5
80
65
37.5
5.5
5.5
5.5
100
80
50
5.5
5.5
9.4
125
100
62.5
5.5
5.5
9.4
150
125
62.5
5.5
9.4
10.9
200
100
250
7.1
9.8
12.9
200
150
125
7.1
9.8
12.9
250
200
125
9.4
10.4
15.2
300
200
250
9.4
13.3
17.3
300
250
125
9.4
13.3
17.3
350
300
125
9.8
15.8
19.6
400
300
250
10.6
16.8
23.8
400
350
125
10.6
16.8
23.8
450
400
125
13
18.3
26.2
500
400
250
13.7
18.9
26.2
500
450
125
13.7
18.9
26.2
600
500
250
16.2
22.7
27.6
700
600
250
18.6
24.5
37.2
800
700
250
18.6
28.3
43.8
900
800
250
20
33
48.3
1000
900
250
22.9
33.2
52.6
变径管标准L0=2.5(D1-D2)根据需要可任意选择