Isn an oil filter just as good as a 920 Series oil separator?
If it had the same internal area it would be. Oil filters tend to be far too small for the amount of solid contaminants floating around in the average refrigeration system. When you consider that the 920 Series separator filter can have as much as 20-50 times the internal area to catch solid contaminants, why would you use a tiny oil filter? Why not filter the oil and then separate the refrigerant from the oil with one component? Fewer components reduce the amount of solder joints potential leak points. Furthermore, oil filters only capture contaminants from 10 to 5 microns. Temprite separator/filters capture contaminants to 0.3 microns. That’s a whole order of magnitude.
