Vacuum

Vacuum is defined as air pressure below atmospheric pressure

Sponsored Links

Vacuum in torr, mm Mercury and psi

The vacuum level is the difference in pressure between the atmospheric pressure and the pressure in the evacuated system:

0% vacuum = 760 torr = 14.7 psia = 29.92 inc mercury abs = 101.4 kPa abs
50% vacuum = 380 torr = 7.3 psia = 15 inc mercury abs = 50.8 kPa abs
99.9% vacuum = 1 torr = 0.01934 psia = 0.03937 inc mercury abs = 1.3 kPa abs

For perfect vacuum (100%) - the pressure is 0 torr, 0 psia or 0 Pa abs.

Sponsored Links

Related Topics

Gas and Compressed Air Gas properties, capacities of pipelines, sizing of relief valves - air, LNG, LPG and more

Related Documents

Vacuum Pressure - Converting Units Vacuum converting units - % vacuum - mm Mercury - psi - torr - micron - kPa
Air Pressure and Altitude above Sea Level Elevation above sea level - in feet and meter - with barometric and atmospheric pressure - inches mercury, psia, kg/cm² and kPa
Vacuum and Flow Measurement Measuring volume flow in vacuum
Vacuum - Evacuation Time Vacuum pumps - calculating flow rate and required evacuation time
Vacuum - Expanded Air Ratio Converting standard air volume flow to actual air volume flow
Vacuum Pipes - Velocities Vacuum pipes - air velocity diagrams
Vacuum Pipe Lines - Pressure Drops Vacuum pipes and pressure drops
Vacuum Pumps - Exhaust Piping Capacity of vacuum pump exhaust pipes

Sponsored Links

Engineering ToolBox - SketchUp Edition - Online 3D modeling!

3D Engineering ToolBox - draw and model technical applications

Engineering ToolBox - SketchUp Edition - enabled for use with the amazing, fun and free Google SketchUp.

Search the ToolBox

© The Engineering ToolBox 2005

9 12 8

• Search this Site!

• Translate this Page!

Engineering Standards

Engineering News

Engineering Standards