The EM pumps up to the E2M80 are fan-cooled; large pumps are water-cooled but may be operated without water-cooling for high vacuum duties. The different models are each optimized to give the best combination of performance, reliability and cost in relation to the anticipated applications.
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E1/2M80 Specifications
| E1M80 | E2M80 | |
|---|---|---|
| Displacement (swept volume) | ||
| 50 Hz | 47.1 ft3min-1 (80 m3h-1) | |
| 60 Hz | 56.5 ft3min-1 (96 m3h-1) | |
| Speed (Pneurop) | ||
| 50 Hz | 43.6 ft3min-1 (74 m3h-1) | |
| 60 Hz | 53 ft3min-1 (90 m3h-1) | |
| Ultimate vacuum (partial pressure) | ||
| without gas ballast |
3.8 x 10-2 torr
5 x 10-2 mbar |
7.5 x 10-5 torr
1 x 10-4 mbar |
| with gas ballast |
3 x 10-1 torr
4 x 10-1 mbar |
3.8 x 10-3 torr
5 x 10-3 mbar |
| Inlet connection | ISO40 | |
| Outlet connection | 25 mm flange suitable for NW25 | |
| Maximum permitted pressure at outlet | 0.5 bar gauge | |
| Maximum inlet pressure for water vapor | 22.5 torr (30 mbar) | 3.8 torr (5 mbar) |
| Maximum water vapor pumping rate | 3.8 lb h-1 (1.7 kgh-1) | 0.7 lb h-1 (0.3 kgh-1) |
| Weight | 210 lb (95 kg) | 231 lb (105 kg) |
| Motor power 50 Hz - 4 pole | 2.2 kW | |
| Motor power 60 Hz - 4 pole | 4 hp (3 kW) | |
| Standard oil capacity | ||
| Maximum | 7.3 qt (7 liter) | 6.7 qt (6.37 liter) |
| Minimum | 4.2 qt (4 liter) | |
| PFPE oil capacity | ||
| Maximum | - | 4.2 qt (4.01 liter) |
| Minimum | - | 2.3 qt (2.19 liter) |
| Recommended oil (supplied) | Ultragrade 70 | |
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