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This series of pumps are widely used in vacuum smelting, vacuum coating, vacuum heat treatment, vacuum drying and other processes in metallurgy, machinery, electronics, chemical industry, petroleum, medicine and other industries.
| Model | Limit division pressure strength (Pa) | Extreme full pressure (Pa) | Pumping rate(L/S) | Electric power(KW) | Pump shaft speed (r/min) | Noise dB(A) | Air intake calibre(mm) | Cooling method | Cooling method temperature rise℃ | The amount of oil(L) | Weight(kg) |
| 2X-4 | ≤6×10-2 | ≤1 | 4 | 0.55 | 543 | 68 | 25 | Natural air cooling | <40 | 0.55 | 60 |
| 2X-8 | 8 | 1.1 | 590 | 70 | 40 | 0.6 | 78 | ||||
| 2X-15 | 15 | 2.2 | 320 | 75 | 40 | 4.2 | 128 | ||||
| 2X-30 | 30 | 3 | 450 | 78 | 65 | Water-cooling | 3.2 | 231 | |||
| 2X-70 | 70 | 5.5 | 420 | 80 | 80 | 6 | 375 |
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