Not to mention the venturi style vacuum pumps require a fairly large CFM compressor to work properly.
Noisy and rather inefficient. You can find AC specific vacuum pumps reasonably priced if you shop around. It will probably be the biggest investment you'll make in your AC tools after a quality manifold gauge set. Dan On Apr 16, 2013, at 7:37 PM, Max Dillon wrote: > Yes, a "real" vacuum pump is required. > -- > Max Dillon > Charleston SC > '95 E300, '87 300TD, '73 Balboa 20 > > Craig <diese...@pisquared.net> wrote: > >> On Tue, 16 Apr 2013 19:02:19 -0400 David & Kristin Gilmore >> <dandkgilm...@frontier.com> wrote: >> >>> Have any of you a recommendation on this type of vacuum pump >>> for evacuating an auto a/c system? >>> >>> >> http://www.tooldiscounter.com/ItemDisplay.cfm?lookup=MAS91200 >> >> >> "1.3 CFM air displacement venturi type pump will pull up to 29 >> inches of vacuum (Hg.) at sea level" >> >> That means you are missing 0.92" of vacuum, which is 23.4 mm Hg, which >> is >> 23.4 Torr. You want to get much lower pressures in your system than >> that >> when evacuating, the lower the better. I would aim for 0.1 Torr (100 >> mTorr) at the highest. >> >> >> Craig >> >> _______________________________________ >> http://www.okiebenz.com >> For new and used parts go to www.okiebenz.com >> To search list archives http://www.okiebenz.com/archive/ >> >> To Unsubscribe or change delivery options go to: >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > For new and used parts go to www.okiebenz.com > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
