我国塑料管道发展很快，质量在不断提高。其中聚乙烯PE管由于其自身独特的优点被广泛的应用于建筑给水，建筑排水，埋地排水管，建筑采暖、输气管，电工与电讯保护套管、工业用管、农业用管等。其主要应用于城市供水、城市燃气供应及农田灌溉等领域。
管材规格
|
公称外径dn,mm |
公 称 壁 厚 en , m m |
||||
|
|
标 准 尺 寸 比 |
||||
|
|
SDR26 |
SDR21 |
SDR17 |
SDR13.6 |
SDR11 |
|
|
公 称 压 力 ， M pa |
||||
|
|
0.6 |
0.8 |
1.0 |
1.25 |
1.6 |
|
32 |
— |
— |
— |
— |
3.0 |
|
40 |
— |
— |
— |
— |
3.7 |
|
50 |
— |
— |
— |
— |
4.6 |
|
63 |
— |
— |
— |
4.7 |
5.8 |
|
75 |
— |
— |
4.5 |
5.6 |
6.8 |
|
90 |
— |
4.3 |
5.4 |
6.7 |
8.2 |
|
110 |
4.2 |
5.3 |
6.6 |
8.1 |
10.0 |
|
125 |
4.8 |
6.0 |
7.4 |
9.2 |
11.4 |
|
140 |
5.4 |
6.7 |
8.3 |
10.3 |
12.7 |
|
160 |
6.2 |
7.7 |
9.5 |
11.8 |
14.6 |
|
180 |
6.9 |
8.6 |
10.7 |
13.3 |
16.4 |
|
200 |
7.7 |
9.6 |
11.9 |
14.7 |
18.2 |
|
225 |
8.6 |
10.8 |
13.4 |
16.6 |
20.5 |
|
250 |
9.6 |
11.9 |
14.8 |
18.4 |
22.7 |
|
280 |
10.7 |
13.4 |
16.6 |
20.6 |
25.4 |
|
315 |
12.1 |
15.0 |
18.7 |
23.2 |
28.6 |
|
355 |
13.6 |
16.9 |
21.1 |
26.1 |
32.2 |
|
400 |
15.3 |
19.1 |
23.7 |
29.4 |
36.3 |
|
450 |
17.2 |
21.5 |
26.7 |
33.1 |
40.9 |
|
500 |
19.1 |
23.9 |
29.7 |
36.8 |
45.4 |
|
560 |
21.4 |
26.7 |
33.2 |
41.2 |
50.8 |
|
630 |
24.1 |
30.0 |
37.4 |
46.3 |
57.2 |
|
710 |
27.2 |
33.9 |
42.1 |
52.2 |
|
|
800 |
30.6 |
38.1 |
47.4 |
58.8 |
|
|
900 |
34.4 |
42.9 |
53.3 |
|
|
|
1000 |
38.2 |
47.7 |
59.3 |
|
|