In James Lerch's system he uses an adjustable valve to "tune" the
amount of cooling derived from an air conditioning compressor to cool
his cold trap... I have a similar cold trap (3 actually) that I have
not set up yet. They came with compressors, expansion chambers and
capillary tubes.
Should I go ahead and try using the capillary tubes or change over to
an adjustable valve? I would have to re-weld, silver solder the
capillary tubes back into the chambers to get them working.
Does the tubing aperature actually have to be changed if the
compressed liquid type is changed? I'm not sure what the original
refrigerant was but the system is fairly ancient. Most likely I'd
have to change refrigerent types to a newer approved refrigerant.
Anybody out there have any ideas on what would be the best way to
proceed?
Looks like I might need to start a "compressed gasses" group...
Ken Hunter
