爱普生压电喷头行业资讯
2024-05-03石油、石化及相关工业用钢制截止阀和升降式止回阀 阀杆的最小直径
| 公称尺寸 DN | 公 称 压 力 PN | |||||||
| 16 | 20 | 25、40、50 | 63、64 | 100、110 | 150、160 | 250、260 | 420 | |
| 阀杆的最小直径/mm | ||||||||
| 15 | 11.1 | 11.1 | 11.1 | 13.5 | 13.5 | 13.5 | 15.9 | 15.9 |
| 20 | 12.7 | 12.7 | 12.7 | 15.9 | 15.9 | 15.9 | 15.9 | 19.0 |
| 25 | 15.9 | 15.9 | 15.9 | 15.9 | 15.9 | 19.0 | 19.0 | 25.4 |
| 32 | 15.9 | 15.9 | 15.9 | 19.0 | 19.0 | 22.2 | 22.2 | 28.6 |
| 40 | 19.0 | 19.0 | 19.0 | 19.0 | 19.0 | 25.4 | 25.4 | 31.8 |
| 50 | 19.0 | 19.0 | 19.0 | 22.0 | 22.0 | 28.6 | 28.6 | 38.1 |
| 65 | 22.2 | 22.2 | 22.2 | 25.4 | 25.4 | 31.8 | 31.8 | 41.3 |
| 80 | 24.0 | 25.4 | 25.4 | 28.6 | 28.6 | 31.8 | 35.0 | 44.4 |
| 100 | 28.0 | 28.6 | 28.6 | 31.8 | 31.8 | 35.0 | 38.1 | 50.8 |
| 150 | 31.8 | 31.8 | 35.0 | 38.1 | 41.3 | 44.4 | 50.8 | 63.5 |
| 200 | 35.0 | 35.0 | 38.1 | 41.3 | 44.4 | 50.8 | 57.2 | 76.2 |
| 250 | 38.1 | 38.1 | 41.3 | 47.6 | 50.8 | 57.2 | 66.7 | 88.9 |
| 300 | 41.3 | 41.3 | 44.4 | 50.8 | 54.0 | 60.3 | 73.0 | 95.2 |
| 350 | 44.4 | 44.4 | — | — | — | 63.5 | 79.4 | — |
| 400 | 47.6 | 47.6 | — | — | — | — | — | — |
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