2THDIVR wrote: ↑Fri Nov 04, 2022 11:53 am
SurfLung, thanks for your creative idea.
Have all my parts together from the scrap bins.
Just waiting on the moister can.
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Ah Ha Ha... It's a work of art! Thanks for the compliment!
I think it's interesting to look back in time at what was apparently acceptable compared to the great lengths we presently go to in assuring that we have good quality air. For example...
My RIX SA3A oiless compressor originally only used two moisture condenser towers and NO FILTER MEDIA. They DID use a Back Pressure Regulator to serve as a PMV though.
My 1980s Coltri MCH6 had a broken condenser and a filter filled only with charcoal... No 13X and no PMV. Labeling is Italian language but looks like it lubed on 30 weight motor oil. The MCH6 is light duty... You're suppose to let it cool between tank fills. I can imagine that 30 weight oil getting a little too hot and dieseling once in awhile and producing some carbon monoxide. Nowadays we have the synthetic oils that are far less likely to diesel PLUS we have the Hopcalite filters. The original set up had no PMV either. Mine has all of the modern upgrades including a PMV.
And finally, my Tornado Kidde had a condenser filled part way with aquarium rocks (for surface area) and a filter full of nothing but carbon. This too was using a petroleum based oil in the early years and running at 3400 rpm it had to get hot. It also had no PMV.
It's nice that they all were upgradeable to modern accepted compressor standards. BUT, it's amazing what the previous owners got away with and the poor quality of air they must have been breathing!