Dry Vacuum pumps?

[Michigan Farmer]

aloha peeps,
1st post here from a long time lurker of the site, finally made a profile as to communicate with yall,

What are the experts thoughts on oil-less pumps for vacuum set ups?

most I have seen are out of my price range atm, but this link is to one I found that is quite affordable, low cfm tho could be a drawback.

http://www.coleparmer.com/Product/G...p_Vac_Gauge_1_15_cfm_29_0_Hg_115V/WU-07061-11

would this be a good option to hook to my vac oven/purging chamber?
experts chime in please

 

[Thomas@LRL]

http://skunkpharmresearch.com/vacuum-purging-and-processing-tips/

Might be helpful, there is a few other posts Gray Wolf made that are incredibly helpful regarding this subject.

 

[Gray Wolf]

Not chemically rated pump. Internals use EDPM which are compatible with ethanol, but not butane.

 

[Michigan Farmer]

Thanks for the input GW

 

[KDT]

I've been using the welch 2042 and couldn't be happier.

 

[bluefairy11]

this might be out of your price range but a friend of mine SWEARS on Welch products.

 

[Gray Wolf]

We use the Welch 2052 for wet work.