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Old 06-26-2017, 05:16 AM
  #10  
David Gladwin
 
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Originally Posted by Dr Honda
OK... yes... they call it -0.95 bar vacuum. but that's not much. (about 4~5 inHg gage?) on the pressure side... they are rated at 14 bar. (so you can see what they are really meant for)

As I said... some are OK with them... but it's not really the proper use. And, I'm sure if you take a model that is a few years old, and pull a festo apart... you will see for yourself how the hoses deform. I'm not trying to be negative or anything... but I'm just trying to get you to think about the use

This is a debate like any other... so pick a side, and go with it.
1 bar is 14.7 psi, 760 mm of Hg or 29.92 ins Hg, so - .95 bar is- 13.9 psi etc, almost as close as it is possible to get to a total vacuum, ie - 1 bar. So either your maths or mine are wrong ! Perhaps I have never understood pressures or vacuums!

(just looked it up. -.95 bar is 95% vacuum or -13.97 psi or 95% of 760 mm of Hg or of 29.92 inches of Hg. ) Can't change physics !

Last edited by David Gladwin; 06-26-2017 at 09:45 AM.