Centrifugal Pumps

Clarification: Cavitation bubbles are NOT air bubbles, they are bubbles of vaporized process liquid (eg steam if the liquid is water). Entrained air (ie air bubbles which are already present in, or are injected into, the process stream) can actually be helpful in very small amounts (less than 1%), because they mitigate the effects of the more troublesome cavitation bubbles. But larger amounts of entrained air (or any kind of gas) can negatively affect pump performance and reliability in a number of ways, including inefficiency, vibration and air pockets which cause dry-running of the seals.

Brought to you by the Machine Tech Video Blog!

In this video, Adam introduces centrifugal pumps. He covers:

The function of a pump
The main components of a centrifugal pump
The basic theory of centrifugal pump operation
A few considerations for proper operation
Basic fluid dynamics theory for pumps

Title music by Andrew Applepie - "Festivities":
http://andrewapplepie.com

Special thanks to Laney College in Oakland, CA.

For more about Laney College, check out the website: http://laney.edu/machine_technology/

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