CPVC-CO管|PVC管道国家标准(二)
5.3.4 壁厚
5.3.4.1 管材任一点壁厚及偏差应符合表1、表5的规定。
表5 壁厚及偏差 mm
壁厚e |
允许偏差 |
壁厚e |
允许偏差 |
> ≤ |
> ≤ |
||
2.0 |
+0.4 0 |
10.6 11.3 |
+1.7 0 |
2.0 3.0 |
+0.5 0 |
11.3 12.0 |
+1.8 0 |
3.0 4.0 |
+0.6 0 |
12.0 12.6 |
+1.9 0 |
4.0 4.6 |
+0.7 0 |
12.6 13.3 |
+2.0 0 |
4.6 5.3 |
+0.8 0 |
13.3 14.0 |
+2.1 0 |
5.3 6.0 |
+0.9 0 |
14.0 14.6 |
+2.2 0 |
6.0 6.6 |
+1.0 0 |
14.6 15.3 |
+2.3 0 |
6.6 7.3 |
+1.1 0 |
15.3 16.0 |
+2.4 0 |
7.3 8.0 |
+1.2 0 |
16.0 16.6 |
+2.5 0 |
8.0 8.6 |
+1.3 0 |
16.6 17.3 |
+2.6 0 |
8.6 9.3 |
+1.4 0 |
17.3 18.0 |
+2.7 0 |
9.3 10.0 |
+1.5 0 |
18.0 18.6 |
+2.8 0 |
10.0 10.6 |
+1.6 0 |
18.6 19.3 |
+2.9 0 |
19.3 20.0 |
+3.0 0 |
29.3 30.0 |
+4.5 0 |
20.0 20.6 |
+3.1 0 |
30.0 30.6 |
+4.6 0 |
20.6 21.3 |
+3.2 0 |
30.6 31.3 |
+4.7 0 |
21.3 22.0 |
+3.3 0 |
31.3 32.0 |
+4.8 0 |
22.0 22.6 |
+3.4 0 |
32.0 32.6 |
+4.9 0 |
22.6 23.3 |
+3.5 0 |
32.6 33.3 |
+5.0 0 |
表5 (完)
壁厚e |
允许偏差 |
壁厚e |
允许偏差 |
> ≤ |
> ≤ |
||
23.3 24.0 |
+3.6 0 |
33.3 34.0 |
+5.1 0 |
24.0 24.6 |
+3.7 0 |
34.0 34.6 |
+5.2 0 |
24.6 25.3 |
+3.8 0 |
34.6 35.3 |
+5.3 0 |
25.3 26.0 |
+3.9 0 |
35.3 36.0 |
+5.4 0 |
26.0 26.6 |
+4.0 0 |
36.0 36.6 |
+5.5 0 |
26.6 27.3 |
+4.1 0 |
36.6 37.3 |
+5.6 0 |
27.3 28.0 |
+4.2 0 |
37.3 38.0 |
+5.7 0 |
28.0 28.6 |
+4.3 0 |
38.0 38.6 |
+5.8 0 |
28.6 29.3 |
+4.4 0 |
|
|
5.3.4.2 管材平均壁厚及允许偏差应符合表6的规定。
表6 平均壁厚及允许偏差 mm
平均壁厚 eo |
允许偏差 |
平均壁厚 eo |
允许偏差 |
> ≤ |
> ≤ |
||
2.0 |
+0.4 0 |
20.0 21.0 |
+2.3 0 |
2.0 3.0 |
+0.5 0 |
21.0 22.0 |
+2.4 0 |
3.0 4.0 |
+0.6 0 |
22.0 23.0 |
+2.5 0 |
4.0 5.0 |
+0.7 0 |
23.0 24.0 |
+2.6 0 |
5.0 6.0 |
+0.8 0 |
24.0 25.0 |
+2.7 0 |
6.0 7.0 |
+0.9 0 |
25.0 26.0 |
+2.8 0 |
7.0 8.0 |
+1.0 0 |
26.0 27.0 |
+2.9 0 |
8.0 9.0 |
+1.1 0 |
27.0 28.0 |
+3.0 0 |
9.0 10.0 |
+1.2 0 |
28.0 29.0 |
+3.1 0 |
10.0 11.0 |
+1.3 0 |
29.0 30.0 |
+3.2 0 |
11.0 12.0 |
+1.4 0 |
30.0 31.0 |
+3.3 0 |
12.0 13.0 |
+1.5 0 |
31.0 32.0 |
+3.4 0 |
13.0 14.0 |
+1.6 0 |
32.0 33.0 |
+3.5 0 |
14.0 15.0 |
+1.7 0 |
33.0 34.0 |
+3.6 0 |
15.0 16.0 |
+1.8 0 |
34.0 35.0 |
+3.7 0 |
16.0 17.0 |
+1.9 0 |
35.0 36.0 |
+3.8 0 |
17.0 18.0 |
+2.0 0 |
36.0 37.0 |
+3.9 0 |
18.0 19.0 |
+2.1 0 |
37.0 38.0 |
+4.0 0 |
19.0 20.0 |
+2.2 0 |
38.0 39.0 |
+4.1 0 |
5.3.5 承口
橡胶密封圈式连接的承口最小深度应符合图1和表7规定。
溶剂粘接型承口的最小深度、承口中部内径尺寸应符合图2和表7规定。
溶剂粘接型承口壁厚不得低于管材公称壁厚的75%,即0.75e。
表7 承口尺寸 mm
公称外径 de |
橡胶密封圈 式承口深度 L |
溶剂粘接式 承口深度 L’min |
溶剂粘接式承口中部平均内径 |
|
|
最小 d min |
最大 d max |
||||
20 |
|
16.0 |
20.1 |
20.3 |
|
25 |
18.5 |
25.1 |
25.3 |
|
|
32 |
22.0 |
32.1 |
32.3 |
|
|
40 |
26.0 |
40.1 |
40.3 |
|
|
50 |
31.0 |
50.1 |
50.3 |
|
|
63 |
64 |
37.5 |
63.1 |
63.3 |
|
75 |
67 |
43.5 |
75.1 |
75.3 |
|
90 |
70 |
51.0 |
90.1 |
90.3 |
|
110 |
75 |
61.0 |
110.1 |
110.4 |
|
125 |
78 |
68.5 |
125.1 |
125.4 |
|
140 |
81 |
76.0 |
140.2 |
140.5 |
|
160 |
86 |
86.0 |
160.2 |
160.5 |
|
180 |
90 |
96.0 |
180.3 |
180.6 |
|
200 |
94 |
106.0 |
200.3 |
200.6 |
|
225 |
100 |
118.5 |
225.3 |
225.6 |
|
250 |
105 |
|
|
|
|
280 |
112 |
|
|||
315 |
118 |
|
|||
355 |
124 |
|
|||
400 |
130 |
|
|||
450 |
138 |
|
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