Equipment VacuumEdwards E2M28 Two Stage Rotary Vane Pump

Edwards E2M28 Two Stage Rotary Vane Pump



STOCK REF#: J137


Edwards E2M28 Two Stage Rotary Vane Pump
 
Model A373-16-903
 
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 a single‑phase motor.
 
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.
 

Technical Data
 
 
Displacement (swept volume)
50 Hz 32.2 m3h-1 / 19 ft3min-1
60 Hz 38.9 m3h-1 / 22.3 ft3min-1
 
Speed (Pneurop 6602)
50 Hz 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 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
Weight 44 kg / 97 lbs
Noise 57 dB(A) @ 50 Hz
Oil capacity - max 1.5 litre
Oil capacity - min 1.2 litre
 

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
 

Serial# 017020025
 
Dims  60cm (D) x 18cm (W) x 28cm (H) - 49cm H with Oil Mist filter
 
PDF Manual
 
Pump will be supplied with the EMF20 Oil mist filter as per image.
 
https://shop.edwardsvacuum.com/products/77031/overview/Product_Details.aspx

 

Manufacturer: Edwards

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The pictures you are looking at are of the Edwards E2M28 Two Stage Rotary Vane Pump. This is the actual item you are buying, they are not downloaded or copied from any other source.
All information given on this website is correct at the time of publication. However in the interests of technical progress, design specifications are subject to change without notice. Accordingly, data given herein should be regarded as a general guide only and does not form part of any contract. All goods are supplied in accordance with our standard terms and conditions of sale. If you need more information on using this equipment check out The Laboratory Encyclopedia.
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