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Subject: Re: Backstreaming problem

Date: 10/27/01 at 9:40 PM
Posted by: Ted Van Vorous
E-mail: cathodes@uswest.net
Message Posted:

In Reply to: Backstreaming problem posted by Anneleen on 10/25/01 at 10:08 AM:

Anneleen,
You will lose a significant amount of pump
speed using an ell vs a straight connection. You
can calculate the loss using standard vacuum
formulas.
A split cooling circuit is sometimes useful
with large diffusion pumps. Ask the manufacturer.
Regards
Ted V V


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