mm | ||||||||||
公称尺寸 | 阀杆最小直径 | |||||||||
DN | PN16 | PN25 | PN40 | PN63 | PN100 | PN160 | PN20 | PN50 | PN110 | PN150 |
50 | 20 | 20 | 20 | 22 | 22 | 26 | 20 | 22 | 22 | 26 |
65 | 22 | 22 | 22 | 24 | 24 | 28 | 22 | 22 | 24 | 28 |
80 | 24 | 24 | 24 | 26 | 26 | 30 | 24 | 24 | 26 | 30 |
100 | 26 | 26 | 26 | 28 | 30 | 34 | 26 | 26 | 30 | 34 |
125 | 28 | 28 | 28 | 30 | 34 | 38 | 28 | 28 | 34 | 38 |
150 | 30 | 30 | 30 | 34 | 38 | 42 | 30 | 32 | 38 | 42 |
200 | 34 | 34 | 36 | 40 | 44 | 50 | 34 | 36 | 44 | 50 |
250 | 38 | 38 | 40 | 44 | 50 | 56 | 38 | 40 | 50 | 56 |
300 | 42 | 42 | 44 | 48 | 55 | 65 | 42 | 44 | 55 | 65 |
350 | 46 | 46 | 48 | 52 | 62 | — | 46 | 48 | 62 | — |
400 | 50 | 50 | 52 | 56 | 70 | — | 50 | 54 | 70 | — |
450 | 54 | 54 | 56 | 60 | 78 | — | 52 | 58 | 78 | — |
500 | 58 | 58 | 62 | 68 | 88 | — | 58 | 65 | 88 | — |
600 | 65 | 65 | 70 | — | — | — | 65 | 75 | — | — |
700 | 75 | 75 | 80 | — | — | — | 75 | 85 | — | — |
800 | 85 | 85 | 90 | — | — | — | 85 | 95 | — | — |
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