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Edwards 40 E2M40 Refurbished Rotary Vane Dual Stage MechanicalVacuum Pump S/N 2267FF
Condition: This Edwards E2M40 is a “refurbished” vacuumpump. Based in a casual inspection then pump looks as good as something likethis need to look, it has a few minor cosmetic scuff/marks and scratches on theexterior but no apparent damage or broken parts as seen in the photos, nomanuals, paperwork or accessories.
This is alarge 2-Stage, Refurbished Vacuum Pump:Edwards Mod. E2M40 Direct-Drive,Dual Stage, Rotary-Vane Vacuum Pump, with 2 HP Motor. Runs on 208-230 or460 Volts 3-phase AC and draws 6.6 or 3.3 Amps. Edwardshas been making this pump for a long time; solid design.
E2M40 pumps are two-stage oil-sealed, high-vacuum pumpsdesigned for reliable, long-term operation in both laboratory and industrialenvironments. A single-phase motor or a four-pole three-phase motor providesdirect-drive through a flexible coupling. The pumps are free-standing mountedon steel runners.
The E2M (two-stage) pumps have an additional low-vacuumrotor and stator assembly. Lubrication is provided by a sliding vane oil pump.Oil is drawn into the pump through a wire mesh strainer. The oil is pumped to aspring-loaded distributor valve. The distributor valve directs alightly-pressurised supply of oil to the main vacuum-pump and by-passes theexcess back to the oil reservoir.
Some of the excess oil is re-directed through a largearea, fine-pore filter and some through a relief-valve. When you switch off anE2M40 pump with the gas ballast control closed, the spring loaded distributorvalve provides oil and air suckback protection.
Vacuum Pump Model E2M40
Nominal Displacement 30
Nominal Displacement 845
Stage 2
Phase (Typical) 3
Motor HP 2
Oil Capacity 4.07
Weight 159
Noise Level 65
MaximumDisplacement m3h-1
50 Hz electrical supply 42.5
60 Hz electrical supply 50.5
MaximumSpeed – Pneurop
50 Hz electrical supply 37
60 Hz electrical supply 44
Motorrotational speed
50 Hz electrical supply 1410
60 Hz electrical supply 1720
UltimateVacuum
Without gas ballast 1x 10-4
(Partial pressure) (1x 10-2)
Without gas ballast 1x 10-3
(Total pressure) (1x 10-1)
With full gas ballast 5x 10-3
(partial pressure) (5x 10-1)
Maximumpermitted outlet pressure 1.5
(at full pump throughput) (1.5x 105)
Maximumwater vapour inlet pressure 7 (7 x 102)
Maximumwater vapour pumping rate 0.2
Maximumgas-ballast flow 1.7
Weight:335 Lbs.
SKU No. 0717-1593 AR
Price: $2,250.00
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