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石油、天然气工业用螺柱连接阀盖的钢制闸阀 阀盖的阀杆填料箱部位的最小壁厚_阀门标准
石油、天然气工业用螺柱连接阀盖的钢制闸阀 阀盖的阀杆填料箱部位的最小壁厚
| 填料箱装填料人口 处的直径/mm |
公 称 压 力 PN |
|||||
| 16、20 |
25～50 |
63～100 |
150、160 |
250、260 |
420 |
|
| 最 小 壁 厚/mm |
||||||
| 15 |
2.8 |
3.0 |
3.6 |
4.2 |
5.3 |
7.6 |
| 16 |
2.8 |
3.1 |
3.6 |
4.4 |
5.6 |
7.9 |
| 17 |
2.8 |
3.2 |
3.7 |
4.5 |
5.8 |
8.2 |
| 18 |
2.9 |
3.5 |
3.9 |
4.6 |
5.9 |
8.5 |
| 19 |
3.0 |
3.8 |
4.1 |
5.1 |
6.1 |
8.9 |
| 20 |
3.3 |
4.0 |
4.2 |
5.2 |
6.3 |
9.2 |
| 25 |
4.0 |
4.8 |
4.8 |
6.3 |
7.1 |
11.0 |
| 30 |
4.5 |
4.8 |
4.8 |
6.5 |
8.2 |
13.1 |
| 35 |
4.8 |
4.8 |
5.1 |
7.1 |
9.7 |
14.5 |
| 40 |
4.9 |
5.0 |
5.7 |
7.5 |
10.2 |
16.4 |
| 50 |
5.5 |
6.2 |
6.3 |
7.9 |
11.6 |
19.8 |
| 60 |
5.6 |
6.4 |
6.8 |
8.9 |
13.4 |
23.2 |
| 70 |
5.6 |
6.9 |
7.4 |
9.9 |
15.8 |
26.5 |
| 80 |
5.8 |
7.2 |
8.1 |
11.0 |
17.4 |
30.1 |
| 90 |
6.4 |
7.4 |
8.8 |
12.0 |
19.1 |
33.2 |
| 100 |
6.4 |
7.7 |
9.5 |
12.8 |
20.8 |
36.7 |
| 110 |
6.4 |
8.1 |
10.3 |
14.1 |
22.9 |
40.1 |
| 120 |
6.6 |
8.6 |
10.9 |
14.9 |
24.8 |
43.5 |
| 130 |
7.1 |
8.8 |
11.3 |
16.2 |
26.5 |
46.9 |
| 140 |
7.1 |
9.2 |
12.0 |
17.3 |
28.3 |
50.2 |
| 注：中间直径的壁厚按插入法计算。 |
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