Edwards 1 E2M1 whats the rating on this? 1 micron????

Y

yeti5508

Active Member
Im looking at this pump and it retails for $2000 http://sandiego.craigslist.org/csd/tls/4023436474.html


from what i can tell from trying to use conversion tables and reading as much as possible is that it pulls down to 1 micron area, and displaces .75 cfm???

Can anyone tell me if this would be a good buy for $200?
from what i cant tell it is, but the only thing that scares me is the .75 cfm

Displacement (swept volume)
50 Hz1.8 m[SUP]3[/SUP]h[SUP]-1[/SUP] / 1 ft[SUP]3[/SUP]min[SUP]-1[/SUP]
60 Hz2.2 m[SUP]3[/SUP]h[SUP]-1[/SUP] / 1.3 ft[SUP]3[/SUP]min[SUP]-1[/SUP]
Speed (Pneurop 6602)
50 Hz1.6 m[SUP]3[/SUP]h[SUP]-1[/SUP] / 0.8 ft[SUP]3[/SUP]min[SUP]-1[/SUP]
60 Hz2.0 m[SUP]3[/SUP]h[SUP]-1[/SUP] / 1.2 ft[SUP]3[/SUP]min[SUP]-1[/SUP]
Ultimate vacuum (total pressure)
without gas ballast3 x 10[SUP]-3[/SUP] mbar / 2.3 x 10[SUP]-3[/SUP] Torr
with gas ballast2.5 x 10[SUP]-2[/SUP] mbar / 1.9 x 10[SUP]-2[/SUP] Torr
Inlet connectionNW10 flange
Outlet connectionNozzle 11 mm external diameter removable from hole tapped 3/8 inch BSP
Maximum permitted pressure at outlet0.5 bar gauge / 7 psig
Maximum inlet pressure for water vapour15 mbar / 11 Torr
Maximum water vapour pumping rate16 gh[SUP]-1[/SUP]
Motor power 50/60 Hz (IP54)0.16 kW
Nominal rotation speed 50/60Hz2800/3400 rpm
Power connectorIEC EN60320 C13
Operating temperature range12 - 40 °C
Weight10 kg / 22 lbs
Noise54 dB (A) @ 50 Hz
Oil capacity - max0.28 litre
min0.2 litre
Recommended oil (supplied)Ultragrade 15


https://www.edwardsvacuum.com/Products/View.aspx?sku=A37132919
 
Y

yeti5508

Active Member
it also has a anti suck back valve, or i can buy a yellowjacket superevac9 retails for 400.

if anyone has any input im going to look at it at in 6hrs
 
Y

yeti5508

Active Member
Fadedawg

Fadedawg

Well-Known Member
It will work, but one cfm is pretty small and there is no need to pull to one micron. In fact, THC is boiling below room temperature at that vacuum level.
 
Y

yeti5508

Active Member
Will the cfm make.my purge time a lot longer?
Or just change the amount of time it takes to evac. My chamber?
 
Fadedawg

Fadedawg

Well-Known Member
Once you get the chamber evacuated, it would probably keep up. I'm considering a dual pump system for the Evapanator rotary evaporator, one to do the initial evacuation and one to pump the solvent laden fumes out when we cold boil.
 
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