Vacuum Lifting Fundamentals | Fluid Power Journal
2016-5-19 · Therefore, a vacuum of 26″Hg (twenty-six inches of mercury) has been created by the vacuum pump. 30″Hg is regarded as the maximum vacuum level available at sea level, and because the oceans are the same height across the planet, this is a good datum point for reference. This number is actually rounded up from 29.92″Hg. Therefore, 29.92 ...
