通用阀门 法兰连接铁制闸阀 最小阀杆直径
公称通径 DN |
公称压力 PN | |||||
1 | 2.5 | 6 | 10 | 16 | 25 | |
最小阀杆直径 | ||||||
50 | — | — | — | 18 | 18 | 18 |
65 | — | — | — | 18 | 18 | 18 |
80 | — | — | — | 20 | 20 | 20 |
100 | — | — | — | 20 | 24 | 24 |
125 | — | — | — | 22 | 28 | 28 |
150 | — | — | — | 24 | 28 | 28 |
200 | — | — | — | 28 | 32 | 32 |
250 | — | — | — | 28 | 36 | — |
300 | 36 | — | — | 36 | 38 | — |
350 | 36 | — | — | 36 | 38 | — |
400 | 36 | — | — | 40 | 40 | — |
450 | 40 | — | — | 44 | 45 | — |
500 | 40 | — | — | 50 | 50 | — |
600 | 44 | — | — | 50 | 50 | — |
700 | 55 | — | — | 65 | 65 | — |
800 | 65 | — | — | 65 | 65 | — |
900 | 65 | — | — | 70 | 70 | — |
1000 | 70 | — | — | 70 | 70 | — |
1200 | 70 | — | 80 | 80 | 80 | — |
1400 | 80 | — | 80 | 80 | — | — |
1600 | — | 80 | 80 | 80 | — | — |
1800 | — | 90 | — | — | — | — |
2000 | — | 100 | ||||
注:表中最小阀杆直径系指与填料配合段的直径。 |
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