How to Adjust Air Compressor Pressure Regulator?

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Air compressors are definitely a very useful tool that you should invest in. This is especially important if you work in a type of business that uses a lot of tools. They are not only useful for this though, as they can help with odd jobs around your house too. They are very simple to use and will get your tools working instantly. There is a whole range of air compressors, some of them are suitable for much smaller jobs, so you need to look at which one you’re purchasing before you do go ahead and buy one.

Another feature that you will need to get your head around is the pressure regulator on the air compressor, but there’s no need to worry as Best of Machinery is here to tell you all about it.

What is a Pressure Regulator?

A pressure regulator is a very important factor of an air compressor. This is because it is a control valve that will be able to reduce and increase the airflow that is coming out of the air compressors tank. You would have also noticed that the pressure regulator is a monitor, so you can see what the exact pressure is. This is very important, as you may have noticed on your tools that there is a PSI number. If you want your tool to work properly, then you will need to set it so it is on this exact PSI number. If you don’t do this, then it’s quite likely that the tool won’t work properly.

If you have quite a large air compressor, then you may actually have more than one pressure regulator. This is because sometimes they can actually be used for multiple uses; therefore, they will need to have different regulators so you can easily control each specific tool. You will need to adjust all of these regulators, because if it is put on a set PSI for all of the tools, then it could damage them.

Do all Air Compressors have a Pressure Regulator?

Most air compressors do have a regulator on them; however, some may not actually have one. This won’t mean that these types of air compressors are any less effective, as they would have been designed in a way that they don’t actually need one to be able to work, or they may even have a different device instead.

How to Adjust a Pressure Regulator on an Air Compressor?

  • First of all, you will need to turn the air compressor on.
  • You may have to wait a little while after that because you need to let the air compressors tank fill up with compressed air.
  • You will know when this is doing this because the air compressor will be making a noise as soon as you turn it on.
  • You will then need to pick up the desired tool that you want to use.
  • Then connect the air hose on the air compressor with your tool. You should see that there would be a location on the tool where you connect the air compressor if you can’t see this then check the manual.
  • Then it’s time to adjust the regulator.
  • You should see a little knob to the right of the regulator (models may vary).
  • If you want to increase the amount of pressure, then turn this knob to the right.
  • If you want to decrease the amount of pressure, then you should turn the knob to the left.

How to Read a Pressure Regulator?

Pressure regulators are actually very simple to read, all that you will need to look at the arrow that moves on the regulator. You should be able to see it increasing when you’re looking at it and when the air compressor has just turned on. Once you can see that it’s working, you will need to check the PSI on the tool you want to use. This is because you will need the pressure regulator to match this number if you want the tool to be able to work correctly.

Maintenance of a Pressure Regulator

If you’ve had your air compressor for quite some time, you may start to notice little problems with it. However, if you have kept, it maintained well then you may not. It’s important that you also keep the pressure regulator maintained over time, this is because there is always downstream pressure going through it and because of this it may slightly crack.

Not only this, but the regulator may also dry out if the air compressor isn’t used for long periods of time. If you do notice any cracks in the regulator, then this will cause the air to leak out of the compressor, which means your tools won’t work properly. One good thing about this is that they aren’t too expensive to fix and will only cost roughly $20 to replace.


Many air compressors come with a whole range of different features, but the majority of them will come with a pressure regulator. This is a very important feature on an air compressor, as it is able to let you adjust the amount of air pressure that is coming out of the tank. This is crucial because it will allow your tool to be able to work to its correct standard. If you do not adjust it correctly, then it will affect how your tool works.

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