发布需求
广东| 品牌：Edwards | 材质：铝合金 | 驱动方式：电动 |
| 用途：真空泵 | 原理：真空泵 | 型号：EXT70,EXT250,EXT250H,EXT250HI,EXT250M,EXT255H,EXT255HI,EXT260 |
我公司专业销售（维修）Edwards涡轮分子泵，技术质量可靠，检测设备齐全，欢迎前来浅谈业务。
Edwards涡轮分子泵的主要型号有：EXT70\70H\70CF\250\250H\250HI\250M\255H\255HI\260
| Inlet flange | DN100ISO-K or DN100CF | |
| Outlet flange | DN25NW | |
| Pump speed (l/s) | ||
| N2 | 240 | 220 |
| He | 250 | 230 |
| H2 | 190 | 180 |
| Compression ratio | ||
| N2 | >1 x 108 | |
| He | 2 x 104 | 4 x 105 |
| H2 | 1,500 | 1.6 x 104 |
| recommended backing pump | RV5 | RV3 |
| Max. continuous inlet pressure (water/AIr cooling) | 3 x 10-1/ 3 x 10-2 | 2 x 10-1/ 2 x 10-2 |
| Nominal Rotation speed (rpm) | 60,000 | |
| Standby rotation (rpm) | 42,000 | |
| Cooling method | Free convection or forced air, or water | Forced air or water |
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