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paddy
13-11-2009, 09:58 PM
Anybody can venture an opinion !! Does anyone have a definitive spec for the depth of vacuum in a close control unit, My thoughts are 1-2 mbar (750-1500 microns) the local agent for the machine is asking for 400 microns and can't give a valid reason why it has to be so low. Can you help me ?

Brian_UK
14-11-2009, 01:05 AM
Because 400 is drier than 750 ??

Around 1000 micron for AC stuff but you should go lower for refrigeration type levels.

chancie owens
12-01-2010, 06:06 AM
500 microns is a good pull the reason being is if you got a tight system youll get that if it leaks you wont.