The Edwards ES range of pumps represents the advanced single stage oil sealed rotary vane pumps. The pump mechanism has been refined to produce a better quality of vacuum. The vacuum performance is highly stable, without any of the pressure fluctuations that are often seen in single stage pumps thanks to the optimised oil return system, improving product quality and giving consistent process results.
Technical data | |
Pumping Speed 50 Hz | 275 m3h-1 /162 CFM |
Pumping Speed 60 Hz | 320 m3h-1 /188 CFM |
Ultimate vacuum (total pressure) no gas ballast | 0.08 mbar /0.06 torr |
ultimate vacuum (total pressure) with gas ballast | 2.0 mbar /1.5 torr |
Inlet Connection | ISO63/2''BSP |
Outlet Connection | ISO40/2''BSP |
Max permitted outlet pressure | 0.5 bar gauge |
Max water vapour pumping rate (50Hz) | 2.3 kgh-1 /5.1 lbh-1 |
Max water vapour pumping rate (60Hz) | 3 kgh-1 /6.6 lbh-1 |
Dimensions | 1083x517x462 |
Weight | 180 kg /369 lb |
Motor Protection rating | IP55 |
Motor Power 50Hz | 6 kW /8.0 hp |
Motor Power 60Hz | 7.5 kW / 10.0 hp |
Noise level (50Hz) | 69 dB(A) |
Noise level (60Hz) | 71 dB(A) |
Oil refill capacity | 5 litre |
Recommended oil | Ultragrade 20 |