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  #11  
Old 01-20-2019, 10:09 AM
lr172 lr172 is offline
 
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Quote:
Originally Posted by guidoism View Post
Here's a video of what it is doing with an air blower: https://youtu.be/IyVJu_UIbKk

and this is what it looks like:

Looks normal to me. That is what they do. As previous person mentioned, you set the pressure with the tool running/flowing and ignore the pressure shown when the tool is not running. The delta will be different for each tool, based upon it's flow rate.

Larry
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  #12  
Old 01-20-2019, 10:12 AM
rocketman1988 rocketman1988 is offline
 
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Default yep...

Yep, that's what it does.

Set the running pressure and don't worry about the static...
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  #13  
Old 01-20-2019, 10:25 AM
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Mike S Mike S is offline
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Looks like a pretty small unit-------what is the PSI rating and what are the CFM ratings ??

You might need to get a better compressor............or possibly you could add an additional tank and get better performance.
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  #14  
Old 01-20-2019, 10:35 AM
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guidoism guidoism is offline
 
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Quote:
Originally Posted by Mike S View Post
Looks like a pretty small unit-------what is the PSI rating and what are the CFM ratings ??
California Air Tools CAT-10020 Ultra Quiet and Oil-Free 2.0 HP 10.0-Gallon Steel Tank Air Compressor

5.30 CFM @ 90 PSI
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  #15  
Old 01-20-2019, 11:08 AM
rocketman1988 rocketman1988 is offline
 
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Default changes

A bigger/better compressor isn't going to change what is being seen on the gauge...

I am using an 80 gallon, 14 CFM @ 175 PSI, two stage compressor plumbed with 3/4" lines and I see the same thing on my tool regulators...
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  #16  
Old 01-20-2019, 11:11 AM
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Quote:
Originally Posted by guidoism View Post
5.30 CFM @ 90 PSI
Air drill needs about 12 CFM.

Rivet gun may eat that much also, but due to being used for short bursts it will not seem that hungry for air.

Paint gun and die grinders-----not sure, but probably pretty close to your unit's max output.

Does the compressor have a non-regulated output?? if so, you could try running that to a larger tank, then to regulate that output.

I am still of the opinion that your issue is one of airflow. It is also possible that the way your unit is plumbed, there may be restriction in the flow going to the regulator, and it is responsible for the pressure drop.
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Last edited by Mike S : 01-20-2019 at 11:18 AM.
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  #17  
Old 01-20-2019, 11:14 AM
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Quote:
Originally Posted by rocketman1988 View Post

I am using an 80 gallon, 14 CFM @ 175 PSI, two stage compressor plumbed with 3/4" lines and I see the same thing on my tool regulators...
Sounds like we have very similar compressors, I also see a pressure drop when using most any tool, but the drop is pretty small.

Guido is showing 35--40 PSI drop.......
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  #18  
Old 01-20-2019, 11:36 AM
rv7charlie rv7charlie is offline
 
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Quote:
Originally Posted by Mike S View Post
Air drill needs about 12 CFM.

Rivet gun may eat that much also, but due to being used for short bursts it will not seem that hungry for air.

Paint gun and die grinders-----not sure, but probably pretty close to your unit's max output.
Mike,

This is a bit of thread drift, but I encourage you to rethink that post. While a drill might demand that much flow when actually running all out, the demands on the *compressor* by one guy in his garage building an a/c are nothing like that high. Through an entire -7 airframe build, the only time I had to wait on a little oil-less compressor with a 10 gal tank was while using a die grinder, which is *much* worse than a drill.

It does new builders a disservice when a 'veteran' builder tells them they can't build effectively without the most expensive tools, the biggest commercial shop size compressors, etc.

Charlie
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  #19  
Old 01-20-2019, 12:41 PM
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Originally Posted by rv7charlie View Post
It does new builders a disservice when a 'veteran' builder tells them they can't build effectively without the most expensive tools, the biggest commercial shop size compressors, etc.

Charlie
Charlie, sorry if that is how I came across---------I was not trying to tell him he "can't" build effectively, I was responding to his original question, and was trying to help him diagnose the reason his unit was acting the way it was in his video.
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  #20  
Old 01-20-2019, 01:09 PM
BillL BillL is offline
 
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Default This is not that difficult.



Quote:
Originally Posted by lr172 View Post
Looks normal to me. That is what they do. As previous person mentioned, you set the pressure with the tool running/flowing and ignore the pressure shown when the tool is not running. The delta will be different for each tool, based upon it's flow rate.

Larry
Quote:
Originally Posted by rocketman1988 View Post
Yep, that's what it does.

Set the running pressure and don't worry about the static...
Quote:
Originally Posted by Mike S View Post
Looks like a pretty small unit-------what is the PSI rating and what are the CFM ratings ??

You might need to get a better compressor............or possibly you could add an additional tank and get better performance.
I just went and set mine to 60 psi and with an air blower it dropped way down to 55 psi. Tank size, compressor rated SCFM, has nothing to do with this regulator. I simply does not function properly 30psi drop is too much. It may be design, maybe an internal failure, but it is NOT NORMAL for a proper regulator. Back to Mike's first comment, it could be some internal restriction of the manifold.

More than 10psi drop is an issue for any regulator, they don't have to be expensive. If you have a hose connection to full tank pressure, put a regulator on a quick coupler at the end of your hose and try that. If it does not work properly then there is an internal restriction.
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Last edited by BillL : 01-20-2019 at 01:13 PM.
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