公称尺寸 DN | PN10、PN16 | PN20 | PN25 | PN40 | |||
闸阀和截止阀 | 闸阀 | 截止阀 | 闸阀 | 截止阀 | 闸阀 | 截止阀 | |
8 | 5.5 | 5.5 | 6.0 | 6.0 | 6.0 | 6.5 | 6.5 |
10 | 5.5 | 5.5 | 6.0 | 6.0 | 6.0 | 6.5 | 6.5 |
15 | 6.0 | 6.0 | 6.5 | 6.5 | 6.5 | 7.5 | 7.5 |
20 | 6.5 | 6.5 | 7.0 | 7.0 | 7.0 | 8.0 | 8.0 |
25 | 7.5 | 7.5 | 8.0 | 8.0 | 8.0 | 9.5 | 9.5 |
32 | 8.5 | 8.5 | 9.5 | 9.5 | 9.5 | 11.0 | 11.0 |
40 | 9.5 | 9.5 | 10.5 | 10.5 | 10.5 | 12.0 | 12.0 |
50 | 10.5 | 10.5 | 11.0 | 11.0 | 12.0 | 12.5 | 14.0 |
65 | 12.0 | 12.0 | 12.5 | 12.5 | 13.5 | 14.0 | 15.5 |
80 | 13.5 | 13.5 | 14.0 | 14.0 | 15.0 | 16.0 | 17.5 |
100 | 15.0 | 15.0 | 15.5 | 15.5 | 16.5 | 17.5 | 19.0 |
注:表中阀杆的最小直径系指与填料配合段的直径。 |
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