putting vacuum pumps in series?
Posted: Tue May 24, 2016 6:28 pm
by pmg804
I was wondering if it would be OK to put two old, weak two-stage vacuum pumps in series as a replacement (supplement) for a single-quad MS.
Re: putting vacuum pumps in series?
Posted: Wed May 25, 2016 4:10 am
by thohry
I have not tried for GC/MS, but for a vacuum evaporator and it helped.
This is my post:
http://chromforum.org/viewtopic.php?f=19&t=30511
Re: putting vacuum pumps in series?
Posted: Wed Jun 01, 2016 3:59 pm
by James_Ball
Is it in series or in parallel? Not sure if in series where the second pump would be pulling on the exhaust of the first pump it would be good. With a Y connector and both pulling in parallel I think it would work ok.