ICEweb has nearly 100 Control, Instrumentation, Fire & Gas, Safety Instrumented Systems core pages and a total of more than 300 pages - It Really is Cool Engineering - By Engineers for Engineers it must be just about the World's first choice for Technical Information.

Whilst every effort is made to ensure technical accuracy of the information supplied on, Keyfleet Pty Ltd and its employees accept no liability for any loss or damage caused by error or omission from the data supplied. Users should make and rely on their own independent inquiries. By accessing the site users accept this condition. Should you note any error/omission or an article offends please do not ignore it, contact the webmaster and we will review, rectify and remove as necessary.

Get seen by the people who use your products!
can be yours

Vacuum Pressure

Vacuum Pressure is defined as the pressure measured with local atmospheric pressure as its reference less the amount of vacuum being drawn.

6.10 Selecting Instruments for Vacuum Service - David W. Spitzer - I recently read an Internet posting by a well-respected instrumentation engineer about selecting instruments for vacuum service. His comments are informative in that he mentions that instruments can be damaged when operated under vacuum. Vessels can also be damaged. The plant in which I worked in a previous professional life a tank that held somewhat less volume after it encountered a vacuum. In this case, pumping liquid out of the tank while the inlet and vent valves were closed caused a vacuum to be created in the tank. The tank partially collapsed, but fortunately no one was hurt and no liquid escaped - from