Edwards E2M28 Vacuum Pump, Edwards (CAT#: STEM-GLE-0613-LGZ)

The manufacturer of Edwards E2M28 Vacuum Pump is Edwards. Model is E2M28. The Edwards 28 E2M28 two-stage rotary vane mechanical vacuum pump provides exceptional ultimate pump speed. The Edwards 28 E2M28 has excellent steam handling capabilities while being relatively quiet in operation. They are very reliable and have accessories to match any application. The Edwards 28 E2M28 vacuum pump has a pump speed displacement of 60Hz (21 CFM) and an ultimate pressure of 7.5 X 10-4 Torr.

Condition: used
Power Connector 1-ph: IEC EN 60320 C19
Noise: 57 dB(A) at 50 Hz
Oil capacity max: 1.5 litres
Oil capacity min: 1.2 litres
Displacement (swept volume):
50Hz: 32.2 m3h-1 / 19 ft3min-1
60Hz: 38.9 m3h-1 / 22.3 ft3min-1
Speed (Pneurop 6602):
50Hz: 27.5 m3h-1 / 16.2 ft3min-1
60Hz: 33.0 m3h-1 / 19.5 ft3min-1
Ultimate vacuum (total pressure)
without gas ballast: 1 x 10-3 mbar / 7.5 x 10-4 Torr
with gas ballast: 1.5 x 10-2 mbar / 1.1 x 10-2 Torr
with Fomblin: 1 x 10-2 mbar / 7.5 x 10-3 Torr
Inlet connection: NW25 flange
Outlet connection: Nozzle 15mm external Ø removable from 3/4 in BSP tapped hole
Max allowed pressure at outlet: 0.5 bar gauge / 7 psig
Max inlet pressure for water vapour: 30 mbar / 23 Torr
Max water vapour pumping rate: 0.7 kg h-1
Operating temperature range: 13 – 40 °C
Nominal rotation speed: 1440 / 1720 rpm
Motor power 50Hz: 0.75 kW
Motor power 60 Hz: 0.90 kW
Recommended oil: Ultragrade 19
Thermal overload device: prevents overheating (single phase only).
The drive is provided through a flexible coupling: by a single phase or three phase (four pole) motor.
The motors: are totally enclosed and are cooled by the motor cooling fan.
Full height O ring sealed oil sight glass: for easy checking of oil level and condition.
IE3 energy efficient 3 phase motor used with E2M28.

1. High ultimate vacuum, fast pumping speed, quiet operation and withstand steam.
2. Typically used for laboratory and light industrial applications.
3. Single-phase or three-phase motors provide drive through flexible couplings.

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