Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed

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SKU Supply Voltage Model Weight (In Grams) Price (excluding VAT) Availability Qty To Purchase
Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed A37315904 100/200V 50/60Hz 1Ph set 200V (to be hardwired - Ultragrade Performance 19) E2M28 0 £5471.00 8 + -
Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed A37317984 115/200-230V 50/60Hz 1Ph with IEC60320 power connector C19 (Ultragrade Performance 19) E2M28 0 £5471.00 7 + -
Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed A37325984 115/200-230V 50/60Hz 1Ph with IEC60320 power connector C19 (PFPE prepared) E2M28FX 0 £6260.00 4 + -
Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed A37333934 IE3 Asia 50/60Hz 200V 3Ph 50/60Hz or 380V 3Ph 60Hz (to be hard wired - Ultragrade Performance 19) E2M28 HC 0 £5471.00 7 + -
Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed A37333940 IE3 EU/US 50/60Hz 380-400V 3Ph 50Hz or 230/460V 3Ph 60Hz (to be hard wired - Ultragrade Performance 19) E2M28 HC 0 £5471.00 29 + -
Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed A37343934 IE3 Asia 50/60Hz 200V 3Ph 50/60Hz or 380V 3Ph 60Hz (to be hard wired - PFPE prepared) E2M28FX 0 £6260.00 Usually Shipped in 6-8 Weeks Contact Us for Exact Information
Edwards Vacuum E2M28 Two Stage Rotary Vane Pump, Oil-Sealed A37343940 IE3 EU/US 380-400V 3Ph 50Hz or 230/460V 3Ph 60Hz (to be hard wired - PFPE prepared) E2M28FX 0 £6260.00 Usually Shipped in 6-8 Weeks Contact Us for Exact Information

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

The pump is designed for reliable, long‑term operation.
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
 
 
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) motor.

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.

Technology

The motor is totally enclosed and is cooled by the motor-cooling fan which directs air along the motor fins. The motors are fitted with a thermal overload device. When the motor is too hot, the thermal overload device switches off the pump. The thermal overload device has an automatic reset; when the motor cools down, the device resets and the motor will restart.
 
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.


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  

General Product Information

Dimension Length 0.563 
Connection Vacuum Inlet Flange DN 25 ISO-KF (NW25)
Supply Frequency 50 Hz
60 Hz
Weight 44.00 
Power Supply Phase 3-Ph
Dimension Height 0.254 
Dimension Width 0.180 
Supply Voltage 3Ph 380-400V 50Hz / 230/460V 60Hz
IP Rating IP54
dimensionsCombinedLengthWidthHeight 0.563 
0.563 
0.563 

Lubricants

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 

Performance Data

Power Total Rated @60Hz 900.00 
Pumping Speed @60Hz 9.166 × 10⁻³ 
Pressure Ultimate 0.100 
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 
pressureUltimateWithGasBallast 1.50 
Max. Displacement @50Hz 8.944 × 10⁻³ 
Max. Displacement @60Hz 0.010 

Environmental Conditions

Temperature Ambient Operation Min. 13.00 

Classification

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

Variants

Variant Oil Type FX - (PFPE prepared)
    • SKU
      A37315904
    • Commodity Codes
      84141025
  • Manufacturer
    Edwards Vacuum
  • Country of Origin
    Czech Republic
  • Supply Voltage
    100/200V 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)
  • Model
    E2M28, E2M28FX, E2M28 HC