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Author Question: Why does the presence of liquid water in a system slow down the evacuation process? What will be ... (Read 31 times)

roselinechinyere27m

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on: Jul 26, 2018
Why does the presence of liquid water in a system slow down the evacuation process?
 
  What will be an ideal response?

Question 2

What can happen if the pressure drop through a heating or cooling coil control valve is excessive?
 
  What will be an ideal response?


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efwsefaw

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

This is because the vaporizing water continually replaces the gas that is removed by the vacuum pump, preventing the pressure from dropping.

Answer to Question 2

Pressure drops in excess of manufacture's recommendations can result in cavitation, erosion of discs, or wire drawing of the seat on a steam valve.


roselinechinyere27m

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Reply 2 on: Jul 26, 2018
Thanks for the timely response, appreciate it

tkempin

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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