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公称压力PN250阀门的压力——温度等级_阀门标准
|
|
材料 |
||||||
|
工作温度a |
WCBb |
304 |
316 |
ICr5Mo |
15CrMoc |
12Cr2MoI |
304L、CF3 |
|
℃ |
CF8 |
CF8M |
CD5 |
WC6 |
WC9 |
316L、CF3M |
|
|
|
最高允许工作压力 Mpa |
||||||
|
（-29～38） |
25.55 |
24.83 |
24.83 |
25.86 |
25.86 |
25.86 |
20.69 |
|
93.5 |
23.28 |
20.69 |
21.34 |
25.69 |
25.86 |
25.86 |
17.45 |
|
149 |
22.62 |
18.62 |
19.28 |
24.69 |
24.90 |
25.10 |
15.66 |
|
204.5 |
21.86 |
17.14 |
17.72 |
24.34 |
23.90 |
24.34 |
14.24 |
|
260 |
20.66 |
16.07 |
16.48 |
22.93 |
22.93 |
22.93 |
13.17 |
|
315.5 |
18.86 |
15.07 |
15.55 |
20.86 |
20.86 |
20.86 |
12.41 |
|
343.5 |
18.52 |
14.83 |
15.31 |
20.28 |
20.28 |
20.28 |
12.07 |
|
371 |
18.38 |
14.66 |
14.97 |
19.59 |
19.59 |
19.59 |
11.83 |
|
399 |
17.38 |
14.31 |
14.72 |
18.21 |
18.34 |
18.34 |
11.59 |
|
426.5 |
14.21 |
13.90 |
14.55 |
17.52 |
17.52 |
17.52 |
11.34 |
|
454.5 |
9.24 |
13.66 |
14.41 |
16.66 |
16.79 |
16.79 |
11.10 |
|
482 |
5.93 |
13.41 |
14.31 |
12.76 |
15.48 |
15.48 |
— |
|
510 |
3.55 |
13.17 |
13.31 |
9.45 |
11.00 |
13.00 |
— |
|
538 |
1.79 |
11.07 |
12.07 |
6.86 |
7.45 |
9.00 |
— |
|
565.5 |
— |
10.66 |
11.86 |
4.97 |
4.97 |
6.03 |
— |
|
593.5 |
— |
8.86 |
10.52 |
3.41 |
3.31 |
3.79 |
— |
|
621 |
— |
6.86 |
8.17 |
2.14 |
2.14 |
2.38 |
— |
|
649 |
— |
5.31 |
6.38 |
1.17 |
1.31 |
1.41 |
— |
|
676.5 |
— |
3.90 |
5.07 |
— |
— |
— |
— |
|
704.5 |
— |
2.97 |
4.03 |
— |
— |
— |
— |
|
732.0 |
— |
2.14 |
3.31 |
— |
— |
— |
— |
|
760.0 |
— |
1.66 |
2.62 |
— |
— |
— |
— |
|
788.0 |
— |
1.17 |
2 |
— |
— |
— |
— |
|
815.5 |
— |
0.93 |
1.41 |
— |
— |
— |
— |
| a 对于表中列出的允许在低温下工作的材料，在低于-29℃的任何温度下工作的压力额定值不得大于 | |||||||
| 表中列出的-29～38℃的额定值。 | |||||||
| b 允许但不推荐在高于425℃时长期使用：含碳量要求w（C）＜0.24%。 | |||||||
| c 允许但不推荐在高于595℃时长期使用。 | |||||||
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