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Author Question: What is a multiple vacuum? What will be an ideal response? ... (Read 14 times)

acc299

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on: Jul 26, 2018
What is a multiple vacuum?
 
  What will be an ideal response?

Question 2

How can the centrifugal compressor speed be higher than the motor speed?
 
  What will be an ideal response?


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Joy Chen

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Reply #1 on: Jul 26, 2018
Answer to Question 1

Multiple evacuation is several short vacuums in succession that are broken in between with dry nitrogen. The nitrogen absorbs and/or dislodges moisture in the system, making it easier to remove on subsequent evacuations.

Answer to Question 2

This is accomplished by using speed increasing gears.


acc299

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Reply #2 on: Jul 26, 2018
Thank you!


Joy Chen

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Reply #3 on: Jul 26, 2018
Always glad to help...


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