Ramon,

The Epovac chamber is well-sealed and only 1500 cc. It's small enough
that any pump will pull it down in short order. Also, the epoxy has a
very long (hrs) room temperature pot life, so evacuation time isn't too
critical here. Mounts are typically under vacuum for about 30 minutes.

Pressure is on the order of 100 - 150 torr.

Good point on something used in hospitals.  

Thanks -
Bruce

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Dehoyos, Ramon
Sent: Monday, July 18, 2005 2:14 PM
To: [log in to unmask]
Subject: Re: [TN] vacuum pump for cross sections

        Hi Bruce:
        You need to know the torr pressure that you want to achieve and
the volume of gas displaced per minute. If you want silent pumps, look
for vacuum pumps for hospitals. 
        Regards,
        Ramon

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 1.8e
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------