Edwards E2M28 21 CFM Dual-Stage High Capacity Vacuum Pump
$7,781.42
21 CFM Dual-Stage High Capacity Vacuum Pump – Edwards
**Note: This Item will ship by Freight ONLY**
Edwards E2M28 21 CFM Dual-Stage High Capacity Vacuum Pump. 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.
Features:
| 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 |
| 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 |
• Customers using solvents such as stabilization resins (MinWax™, Gator Venom™ etc.), alcohol and other polar solvents must use the vacuum pumps in conjunction with a cold trap for evacuations in excess of 5 minutes. (Excludes Cactus Juice™)
• If the consumer is using the pump for prolonged periods of time exceeding 5 minutes we require that a cold trap is used or the pump warranty is void.
• These stabilization resins have the ability to break down the internal components of the pump that are plastic resulting in a seized motor voiding all warranties.
• When evacuation exceeds 5 minutes these solvents begin to vaporize and then re-condense in the vacuum pump reservoir. Once enough solvent re-condenses in the pump displacing the oil the plastic internal components may begin to warp, melt or seize. The use of a cold trap will condense the vapors prior to making their way to the vacuum pump preventing pump damage due to excessive use. Furthermore, Minwax Wood Hardener™ is not to be used with any vacuum pumps, EVER. (A seized motor will result within the first use.)
• To prevent these issues from happening to your process, change the Oil after each vacuum pump use, Even if the use time is only 5min.
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