Nom. speed 60HZ : 9.166 × 10⁻³ m³/s
Ult. Pressure : 0.100 Pa
Nom. speed 50HZ : 7.638 × 10⁻³ m³/s
EM series pumps are rugged mechanical oil-sealed pumps with speeds ranging from 0.7 to 275 m3/hr (30 to 206 CFM). Compact and quiet, they feature advanced lubrication circuits, high reliability, and accessories to suit specific application needs.
EM products serve two major application sectors.
In scientific and laboratory applications, the E2M0.7-2.5 and E2M18/28 are the ideal partners for your turbomolecular pump.
In Industrial applications, E2M18/28, E2M40/80 and E2M175/275 offer very robust solutions in demanding applications.
Features and Benefits
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.
Large sight glass and operating oil range.
IE3 energy efficient 3 phase motor used with E2M28
Each EM pump is supplied with 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.
An oil pressure system 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 (suckback) after the pump stops. The pumping chambers are air-tight, so this arrangement prevents oil 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 two oil drain-plugs to allow either gravity oil drain or pressure oil drain.
- Analytical instruments - LCMS
- Beam lines and high energy physics
- Centrifuges, ultra-high speed
- Degassing/curing - oil, epoxy resin
- Freeze drying
- Gas bottle filling/emptying
- Gel drying
- Glove boxes, ovens
- Laboratory bench top vacuum
- Lasers, gas recovery and re-circulation
- Leak detectors, Helium
- Load locks and transfer chambers
- Refrigeration manufacture
- Rotary, centrifugal evaporators
- Solvent recovery
- Surface science instruments
- Turbomolecular backing pumps
General Product Information
|Connection Vacuum Inlet Flange||DN 25 ISO-KF (NW25)|
|Supply Frequency||50 Hz
|Power Supply Phase||3-Ph|
|Supply Voltage||3Ph 380-400V 50Hz / 230/460V 60Hz|
|Type Default||PFPE prepared - FOMBLIN® Y VAC 06/6 to be purchased seperately|
|Type Option||PFPE FOMBLIN® Y VAC 06/6|
Operation Conditions - Limitations
|Oil Capacity Max.||1.500 × 10⁻³|
|Pressure Outlet Continous Max.||1.500 × 10⁵|
|Oil Capacity Min.||1.200 × 10⁻³|
|Power Total Rated @60Hz||900.00|
|Pumping Speed @60Hz||9.166 × 10⁻³|
|Power Total Rated @50Hz||750.00|
|Pumping Speed @50Hz||7.638 × 10⁻³|
|Rotational Speed Nominal||28.66|
|Rotational Speed @60Hz Nominal||28.66|
|Rotational Speed @50Hz Nominal||24.00|
|Pressure Water Vapour Max.||3000.00|
|Capacity Water Vapour||1.944 × 10⁻⁴|
|Max. Displacement @50Hz||8.944 × 10⁻³|
|Max. Displacement @60Hz||0.010|
|Temperature Ambient Operation Min.||13.00|
|Product Pressure Range||Medium Vacuum - 1 mbar - 1*10-3 mbar|
|High / Medium / Rough Vacuum Classification||Medium Rough Vacuum Pump|
|Dry or Wet Pump||Wet pump|
|Vacuum Pump Technology||Oil Rotary Vane Pumps Two-Stage|
|Variant Oil Type||FX - (PFPE prepared)|
Country of OriginCzech Republic
Supply Voltage100/200V 50/60Hz 1Ph set 200V (to be hardwired - Ultragrade Performance 19), 115/200-230V 50/60Hz 1Ph with IEC60320 power connector C19 (Ultragrade Performance 19), 115/200-230V 50/60Hz 1Ph with IEC60320 power connector C19 (PFPE prepared), IE3 Asia 50/60Hz 200V 3Ph 50/60Hz or 380V 3Ph 60Hz (to be hard wired - Ultragrade Performance 19), IE3 EU/US 50/60Hz 380-400V 3Ph 50Hz or 230/460V 3Ph 60Hz (to be hard wired - Ultragrade Performance 19), IE3 Asia 50/60Hz 200V 3Ph 50/60Hz or 380V 3Ph 60Hz (to be hard wired - PFPE prepared), IE3 EU/US 380-400V 3Ph 50Hz or 230/460V 3Ph 60Hz (to be hard wired - PFPE prepared)
ModelE2M28, E2M28FX, E2M28 HC