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表D.1 特殊压力级阀门压力-温度额定值_阀门标准
| WCB、A105当长期使用与温度大于427℃时，钢中的碳化物相对值会转化为石墨化 | ||||||||
|
|
公称压力 |
|||||||
|
温度/ |
20 |
50 |
67 |
110 |
150 |
260 |
420 |
760 |
|
℃ |
分级表示的工作压力/Mpa |
|||||||
|
（-29～38） |
2.0 |
5.2 |
7.0 |
10.5 |
15.8 |
26.3 |
43.9 |
79.1 |
|
93 |
2.0 |
5.2 |
7.0 |
10.5 |
15.8 |
26.3 |
43.9 |
79.1 |
|
149 |
2.0 |
5.2 |
7.0 |
10.5 |
15.8 |
26.3 |
43.9 |
79.1 |
|
204 |
2.0 |
5.2 |
7.0 |
10.5 |
15.8 |
26.3 |
43.9 |
79.1 |
|
260 |
2.0 |
5.2 |
7.0 |
10.5 |
15.8 |
26.3 |
43.9 |
79.1 |
|
315 |
1.93 |
5.0 |
6.7 |
10 |
15 |
25 |
42 |
75.1 |
|
343 |
1.9 |
4.9 |
6.6 |
9.8 |
14.7 |
24.6 |
41 |
73.7 |
|
371 |
1.86 |
4.9 |
6.5 |
9.8 |
14.6 |
24.4 |
40.6 |
73.1 |
|
399 |
1.69 |
4.4 |
5.9 |
8.8 |
13.3 |
22.1 |
36.9 |
66.4 |
|
427 |
1.41 |
3.6 |
4.8 |
7.2 |
10.9 |
18.1 |
30.1 |
54.2 |
|
454 |
0.9 |
2.3 |
3.1 |
4.7 |
7.1 |
11.7 |
19.6 |
35.2 |
|
482 |
0.6 |
1.5 |
2.0 |
3.0 |
4.5 |
7.5 |
12.5 |
22.6 |
|
510 |
0.35 |
0.9 |
1.2 |
1.8 |
2.7 |
4.5 |
7.5 |
13.5 |
|
538 |
0.2 |
0.5 |
0.6 |
0.9 |
1.4 |
2.2 |
3.8 |
6.7 |
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