Questions: Adding a second air pressure regulator

DragonDaddy

Double Actioner
I moved my compressor further away from my spray booth and added a second regulator closer to the booth. I’m not sure what is the most effective way to do this and am interested in your advise. The compressor is a Master Airbrush Cool Runner II. The new distance from compressor to booth is about six feet.

The compressor has a regulator and moisture trap which I left on the compressor. I ran an air hose from this to the second regulator. Is it ok to run like this or would I get better results by removing the first regulator and moisture trap?

With my current setup of two regulators (one on the compressor, one near the booth), what pressure do I set the compressor regulator to? I understand that the second regulator near the booth should be set to the airbrush desired pressure.

Thanks for your help.
 
I run this way with my setup. Never had a problem. More water traps the better. (mine self drain)
I'm not familiar with your compressor, does it have a tank? Mine does. It prevents pulsing.
My regulator at the tank is typically opened up to around 50psi....essentially not doing much most of the time.
 
Hello,
As a rule of thumb you want to get the moisture trap as far away as possible from the compressor itself, which we rarely do.
I don't see much of a benefit of 2 regulators in this case, unless the compressor is very high psi and the hose can't handle it. If you can move the regulator and moisture trap to the second location, I think you would be fine. If you run 2 regulators, of course the first one needs to be set higher than what se second one will be. For example 40 on the first and the second to 20 or less.

Thanks,
Ismael
 
I run this way with my setup. Never had a problem. More water traps the better. (mine self drain)
I'm not familiar with your compressor, does it have a tank? Mine does. It prevents pulsing.
My regulator at the tank is typically opened up to around 50psi....essentially not doing much most of the time.
Yes, the compressor has a tank and I have been setting this regulator to 50 psi.
 
Hello,
As a rule of thumb you want to get the moisture trap as far away as possible from the compressor itself, which we rarely do.
I don't see much of a benefit of 2 regulators in this case, unless the compressor is very high psi and the hose can't handle it. If you can move the regulator and moisture trap to the second location, I think you would be fine. If you run 2 regulators, of course the first one needs to be set higher than what se second one will be. For example 40 on the first and the second to 20 or less.

Thanks,
Ismael
Thanks for the reply. I was presuming that it would be best to keep the moisture trap on the tank. This way no moisture would escape to the hose that leads to the second regulator. Can you give me a little information on why the moisture trap should be far away from the tank?
 
In a nutshell, moisture is caused when hot air gets cooler and moisture condenses. The compressor generates heat. If you still have "hot" air after the moisture trap, there is a chance of more moisture forming down the line. The idea is to have your moisture trap as far away as possible from the source of heat. However, keep in mind, we could probably be splitting hairs here if you live in a dry location or the distances are very short or the compressor is really a smaller one. We are not talking industrial compressors and hundreds of feet on very high pressure lines. Actually, my moisture trap and regulator are attached to the compressor as I only run a small compressor and a short hose. In high humidity locations, it is common to see a small in-line moisture trap into the airbrush. I think at the end you can be ok with either approach. Just be mindful in case you still see some moisture problems.

Thanks,
Ismael
 
In a nutshell, moisture is caused when hot air gets cooler and moisture condenses. The compressor generates heat. If you still have "hot" air after the moisture trap, there is a chance of more moisture forming down the line. The idea is to have your moisture trap as far away as possible from the source of heat. However, keep in mind, we could probably be splitting hairs here if you live in a dry location or the distances are very short or the compressor is really a smaller one. We are not talking industrial compressors and hundreds of feet on very high pressure lines. Actually, my moisture trap and regulator are attached to the compressor as I only run a small compressor and a short hose. In high humidity locations, it is common to see a small in-line moisture trap into the airbrush. I think at the end you can be ok with either approach. Just be mindful in case you still see some moisture problems.

Thanks,
Ismael
Thanks, Ismael. Great information. Yes, we may be splitting hairs here but it’s good to know.
 
I set my compressor regulator at 50 and my desk regulator at the desired psi for what I'm doing,
Moisture trap at the desk (my compressor doesn't have one built in) and a small inline one at the airbrush.
 
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