Originally Posted by
DanB
In my quest to get things working correctly I mentioned above that I was going to exchange the original air/oil filter from Harbor Freight. I did this today and the second one does the same thing the first one did...It does not hold pressure to a constant when holding down on the sprayer trigger. I officially deem this filter a P.O.S. Don't waste your time. Looks like I will be ordering that M-30 Randy.
Dan.
This could be getting off topic and going down another path...
A filter that removes oil aerosol does cost.
In the Auto Painting industry these water and oil filters can cost about $1,200 and could be around 2.5 thousand and up.
You say that this new filter and regulator does not hold pressure to a constant when pulling the trigger of the spray gun.
These canister filter / regulators are not supposed to maintain a constant pressure. It is the compressor and holding tank that does this. Most filter / regulators like the one shown should handle about 80 CFM at 120 psi (this does vary very much)
Lets say that your compressor delivers 10 CFM (cubic feet per minute) of air but the spray gun you are using consumes 14 CFM; the system will run down and you will see the pressure guage slowly move to the negative of what you started spraying with and before you know it, the atomisation of the paint gets poor and you will experience orage peel to say the least!