Question on non-condensables in ammonia

[mad fridgie]

You are right about low pressure. Vacuum can be from 0 bar(atmospheric pressure) to 1 bar(absolute vacuum). How to create 10 bars pressure not vacuum?

Best example I can give is the prop on a submarine, csvition is still produced at well over 100meters (10barg)
As you know water will boil below 1barg "cavitation" this how eddie current can produce very low pressures.