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Common Conversions for Absolute Pressures and Flow Rates
Common Conversions for Absolute Pressures and Flow Rates These conversion tables can be particularly helpful when comparing specifications for pumps from different manufacturers. Download the Adobe Acrobat® version and you’ll have these tables available at all times.
Conversion Factors of Absolute Pressures in Various UnitsExample – To transform 10 mbar to torr: 10 x 0.75 = 7.5 torr |
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| = mbar | = bar | = torr | = in. Hg | = psi (lb/in2) | = atm | = Pa | |
| mbar x | 1 | 1 x 10-3 | 0.75 | 2.953 x 10-2 | 1.45 x 10-2 | 9.869 x 10-4 | 1 x 102 |
| bar x | 1 x 103 | 1 | 7.5 x 102 | 29.53 | 14.5 | 0.987 | 1 x 105 |
| torr x | 1.333 | 1.333 x 10-3 | 1 | 3.937 x 10-2 | 1.934 x 10-2 | 1.316 x 10-3 | 1.33 x 102 |
| inch Hg x | 33.86 | 3.386 x 10-2 | 25.4 | 1 | 0.491 | 3.342 x 10-2 | 3.386 x 103 |
| psi (lb/in2) X | 68.95 | 6.895 x 10-2 | 51.71 | 2.036 | 1 | 6.805 x 10-2 | 6.895 x 103 |
| atm x | 1.013 x 103 | 1.013 | 7.6 x 102 | 29.92 | 14.7 | 1 | 1.013 x 105 |
| Pa x | 0.01 | 1 x 10-5 | 7.5 x 10-3 | 2.953 x 10-4 | 1.45 x 10-4 | 9.869 x 10-6 | 1 |
Conversion Factors of Flow Rates in Various Units |
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| = m3/h | = m3/min | = m3/sec | = l/min | = cfm | = gpm | ||
| m3/h x | 1 | 1.667 x 10-2 | 2.778 x 10-4 | 16.67 | 0.588 | 4.403 | |
| m3/min x | 60 | 1 | 1.667 x 10-2 | 1 x 103 | 35.28 | 2.642 x 102 | |
| m3/sec x | 3,600 | 60 | 1 | 6 x 104 | 2.117 x 103 | 1.585 x 104 | |
| l/min x | 6 x 10-2 | 1 x 10-3 | 1.667 x 10-5 | 1 | 3.528 x 10-2 | 0.264 | |
| cfm x | 1.699 | 2.832 x 10-2 | 4.72 x 10-4 | 28.32 | 1 | 7.481 | |
| gpm x | 0.227 | 0.378 | 6.306 x 10-5 | 3.784 | 0.133 | 1 | |