法兰和对夹连接钢制衬氟塑料蝶阀、阀座流道的最小尺寸
公称尺寸 DN | 阀座流道的最小尺寸 | 公称尺寸 DN | 阀座流道的最小尺寸 |
50 | 44 | 400 | 371 |
65 | 55 | 450 | 422 |
80 | 69 | 500 | 472 |
100 | 88 | 600 | 575 |
125 | 117 | 700 | 670 |
150 | 138 | 800 | 770 |
200 | 185 | 900 | 870 |
250 | 230 | 1000 | 970 |
300 | 275 | 1200 | 1160 |
350 | 321 | — | — |
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