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Produkty Edwards Vacuum

Pompy próżniowe olejowe (R&D i przemysł)

E2M28 PFPE

The EM range of oil-sealed rotary pumps - renowned for its high ultimate vacuum, rapid pumping speed, quiet operation and ability to handle vapour - has become the industry standard laboratory and light industrial applications. 
The E2M28 pump is a two-stage, direct drive, sliding vane pump. The pump is oil sealed and designed for reliable, long-term operation in both laboratory and industrial environments. The pump is a freestanding unit with the drive provided through a flexible coupling by either a single-phase or three-phase (four-pole) motor.


Supplied with: Ultragrade 19 oil, NW25 exhaust flanges rather than the Nozzle that is supplied as standard with hydrocarbon pumps.

Fomblin® must be purchased separately for PFPE pumps.

Informacje

Features and Benefits

  • The pump is designed for reliable, long-term operation.
  • Thermal overload device prevents overheating (single phase only).
  • The pump is a free-standing unit.
  • 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.
  • Easy to use controls.
  • Pressure die cast oil box with integral oil seals prevents oil leaks.
  • Gas ballast valve for large water vapour handling capacity.
  • Externally approved to EN61010, CSA, C22.2 and UL61010.
  • Oil distribution valve.
  • Pumping chambers are air-tight.
  • Oil sight-glass, two oil drain-plugs, inlet-port and outlet nozzle all fitted as standard.
  • Gas-ballast control.

Applications

  • Analytical instruments - LCMS
  • Automotive
  • Beam lines and high energy physics
  • Centrifuges, ultra-high speed
  • Coating
  • Cryogenics
  • Degassing/curing - oil, epoxy resin
  • Distillation/extraction/filtration
  • Freeze drying
  • Furnaces
  • 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
Dane techniczne
Displacement (swept volume) 50 Hz 32.2m3h-1 / 19 ft3min-1
Displacement (swept volume) 60 Hz 38.9 m3h-1 / 22.3 ft3min-1
Speed (Pneurop 6602) 50 Hz 27.5 m3h-1 / 16.2 ft3min-1
Speed (Pneurop 6602) 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
Inlet connection NW25 flange
Outlet connection Nozzle 15 mm 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 50 Hz 0.75 kW
Motor power 60 Hz 0.90 kW
Power Connector 1-ph* IEC EN60320 C19
Weight 44 kg / 97 lbs
Noise 57 dB(A) @ 50 Hz
Oil capacity - max 1.5 litre
Oil capacity - min 1.2 litre
Recommended oil (supplied) Ultragrade 19


* Pumps listed with IEC connector only