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閥門中心型 JIS STANDARD
| 船用閥門中心型閥座圈: | |
 | Instruction：JIS Standard |
| Instruction： | |
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| 序號(hào) | 規(guī)格 | фA | фB | фC |
1 | DN50 | 83 | 54 | 42 |
2 | DN65 | 105 | 69 | 42 |
3 | DN80 | 118 | 83 | 62 |
4 | DN100 | 137 | 102.6 | 62 |
5 | DN125 | 170 | 126.6 | 62 |
6 | DN125 | 170 | 125.8 | 103 |
7 | DN150 | 195 | 150 | 73 |
8 | DN150 | 195 | 150 | 103 |
9 | DN200 | 245 | 195 | 83 |
10 | DN250 | 297 | 245 | 93 |
11 | DN250 | 299 | 244.5 | 113 |
12 | DN300 | 349 | 295 | 93 |
13 | DN350 | 387 | 330 | 103 |
14 | DN400 | 439 | 375 | 113 |
15 | DN400 | 456 | 375 | 133 |
16 | DN450 | 497 | 425 | 133 |
17 | DN500 | 560 | 473 | 143 |
18 | DN600 | 660 | 573 | 163 |