RE: Re[2]: Oil-free pumps

Chin, David T. (ChinD@missouri.edu)
Tue, 24 Nov 1998 12:06:42 -0600

It's not only a nice thing to do for people in the lab, but cut down on the
corrosive gas (TFA, HCl, etc.) that are taken up by the pump and released
from the pump. They not only irate the lungs and nasal cavities, but eat
away on metals (e.g. instruments) and coat the detectors with oil. Just
think about the lost performance with people and instruments.

May people also get serve headaches from out gassed solvents and
scintillation cocktails.

If the ballast is left slightly open, much of the lighter corrosive material
and solvent can be removed from the pump oil. That makes for longer pump
life and higher vacuums. As always the out gases should be vented to the
hood or outside. The out gas filters usually work for only a very short
time.

David Chin

-----Original Message-----
From: Ruth Hogue Angeletti [mailto:angelett@aecom.yu.edu]
Sent: Tuesday, November 24, 1998 7:42 AM
To: Recipients of ABRF List
Subject: Re: Re[2]: Oil-free pumps

Dear Folks

For everybody out there who has direct-drive (oil) vacuum pumps, keeps them
in good condition, and can't afford to replace them right now -- it is very
easy to run a vent line from the pump's exhaust to a hood. It eliminates
any air contamination from even the best maintained and operated systems,
and is a very nice thing to do for the people in the lab.

Ruth

At 01:10 PM 11/23/98 -0800, Frank_Masiarz@cc.chiron.com wrote:
>
> Hi................
>
> Definitely sounds good. The constant concern about oil contamination
> and smoke is nothing but trouble.
>
> What is the source of the AES series system ??? Savant ???
>
> Frank............
>
> Protein Structure Analysis Group
> Chiron Corporation
>
>
>______________________________ Reply Separator
_________________________________
>Subject: RE: Oil-free pumps
>Author: "Klein; Mike L." <mklein@amgen.com> at SMTP
>Date: 11/23/98 9:41 AM
>
>
>The AES series SpeedVac utilizes an oil-free pump, and for me and my
>colleagues they work as well as (maybe better than) the old-fashioned
>pumps. Maintenance is next to nothing, and they don't make any of the
>sloppy mess or awful smoke associated with the oil.
>
>Mike Klein
>Amgen, Inc.
>
>> ----------
>> From: iap@iname.com[SMTP:iap@iname.com]
>> Sent: Monday, November 23, 1998 5:50 AM
>> To: Recipients of ABRF List
>> Subject: Oil-free pumps
>>
>> Does anyone use oil-free pumps for SpeedVac(TM)-type vacuum centrifuges,
>> to remove small volumes (1-5 mL) of HPLC solvents? If so, could you
>> please provide details.
>> Thanks.
>>
>> Ioannis Papayannopoulos
>> Astra Arcus USA, Inc.
>> Worcester, MA
>>
>> --------------------------------------------------------
>> Get free personalized email at http://lifetime.iname.com
>>
>
>
>
>