The EM range of oil sealed rotary pumps – renowned for their high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapour – have become the industry standard for laboratory and light industrial applications. The pump is a freestanding unit with the drive provided through a flexible coupling by either a single phase or three phase (four pole) air cooled motor.
Each EM pump is supplied with 2 x 1 litre of Ultragrade 19 oil, O ring and centering ring, two Allen keys and spares seal for oil drain and filter plugs. For PFPE prepared FX pumps Fomblin® to be ordered separately.
This is a single stage oil sealed rotary vane pump which has a pressurised oil system that lubricates the pump shaft bearing surfaces and rotor sealing faces. The pump has an oil distribution valve which prevents discharge of oil to the pump interior after the pump stops. The pumping chambers are air-tight, so this arrangement also prevents suckback unless the gas ballast valve is open.
You can inspect the level and condition of oil in the oil box reservoir through the oil sight-glass. An oil filler-plug is fitted to the top of the oil box. The pump has an oil drain-plug to allow either gravity oil drain or pressure oil drain.
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The Edwards E2M18FX Vacuum Pump 115/230V includes:
- O ring and centering ring
- Two Allen keys and spares seal for oil drain and filter plugs
- Operator's Manual
- 1 Year Manufacturer's Warranty
- Manufacturer's Documentation
Edwards E2M18FX Vacuum Pump 115/230V Specifications
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Displacement (50Hz)
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20.5 m
3h-1 / 12.1 ft 3min-1
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Displacement (60Hz)
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25.0 m
3h-1 / 14.7 ft 3min-1
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Speed (Pneurop 6602) 50 Hz
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17.0 m
3h-1 / 10 ft 3min-1
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Speed (Pneurop 6602) 60Hz
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20.4 m
3h-1 / 12.1 ft 3min-1
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Ultimate vacuum (total pressure)
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without gas purge
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1 x 10
-3 mbar / 7.4 x 10 -4 Torr
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with gas purge
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1.5 x 10
-2 mbar / 1.1 x 10 -2 Torr
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with Fomblin®
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1 x 10
-2 mbar / 7.5 x 10 -3 Torr
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Inlet connection
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NW25
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Outlet connection**
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Nozzle 15 mm external Ø removable from 3/4 in BSP tapped hole
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Max permitted pressure at outlet
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0.5 bar gauge / 7 psig
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for water vapour
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15 Torr
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Max water vapour pumping rate
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0.3 kg h
-1
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Operating temp range
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13-40°C
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Nominal Rotation speed 50/60Hz
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1440/1720 rpm
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Power connector 1-ph*
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IEC EN60320 C19
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Motor power 50 Hz
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0.55 kW
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Motor power 60 Hz
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0.75 kW
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Weight
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39 kg / 86 lbs
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Noise @ 50Hz
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57 dB(A)
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Oil capacity - max
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1.05 litre
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Oil capacity - min
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0.75 litre
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Recommended oil (supplied)
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Ultragrade 19
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Specifications
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E1M18
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E2M0.7
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E2M1.5 (100-120V)
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E2M1.5 (230V)
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E2M18
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E2M18FX 115/230V
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E2M28
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Displacement 50Hz (m3h-1 / ft3min-1)
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20.5 / 12.1
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0.9 / 0.5
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1.8 / 1
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1.8 / 1
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20.5 / 12.1
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20.5 / 12.1
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32.2 / 19
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Speed 50Hz (Pneurop 6602) (m3h-1 / ft3min-1)
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17.0 / 10
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0.75 / 0.4
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1.6 / 0.8
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1.6 / 0.8
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17.0 / 10
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17.0 / 10
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27.5 / 16.2
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Ultimate Vacuum (mbar / Torr) without gas purge
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3 x 10-2 / 2.2 x 10-2
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3.0 x 10-3 / 2.3 x 10-3
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3 x 10-3 / 2.3 x 10-3
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3 x 10-3 / 2.3 x 10-3
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1 x 10-3 / 7.4 x 10-4
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1 x 10-3 / 7.4 x 10-4
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1 x 10-3 / 7.5 x 10-4
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Inlet Connection
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NW25
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NW10 flange
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NW10 flange
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NW10 flange
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NW25
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NW25
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NW25 flange
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Weight (kg / lbs)
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37 / 82
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10 / 22
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10 / 22
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10 / 22
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39 / 86
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39 / 86
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44 / 97
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Noise Level @ 50Hz (dB(A))
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57
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43
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54
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54
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57
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57
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57
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Electrical Requirements
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120V, 50-60 Hz
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100-120V, 50/60Hz
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100-120V, 50/60Hz
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200-230V, 50/60Hz
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120V, 50-60 Hz
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115/230V
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100-120V, 50/60Hz
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