止回阀系列
黄铜立式止回阀407| DN | INCH | A | L |
| 15 | ½" | 33 | 46.5 |
| 20 | ¾" | 42 | 56.5 |
| 25 | 1" | 46 | 60.5 |
| 32 | 1¼" | 59 | 61.5 |
| 40 | 1½" | 66 | 67 |
| 50 | 2" | 80 | 85 |
| 65 | 2½" | 95 | 92.5 |
| 80 | 3" | 110 | 97.5 |
| 100 | 4" | 145 | 110 |
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