Air Compressor Pressure Switch Adjustments: Precautions + Required Tools Safety PrecautionsĪir compressors often work on an electrical circuit, which makes it important to take appropriate safety precautions. In this article, we’ll take a look at the steps that are taken when you are adjusting your air compressor’s pressure settings at the switch, including appropriate safety precautions to take to prevent an accident, what kind of tools you’ll need to get the job done, and the steps required to make the changes to your air pressure switch. It’s much simpler to change your system’s line pressure, where a pressure regulator is adjusted to adapt the pressure in your feed lines that go to your tools. This is a different process than changing the line pressure for your system and should not be confused. In this situation, being able to adjust your air compressor switch is an important part of operations. Similarly, you may need to adjust the breadth of the pressure range in which your air compressor will operate. These settings are the pressure at which your air compressor switch, a mechanical device, will turn on to increase air pressure or turn off when the higher pressure that is set is reached. However, sometimes you have to replace the switch with a new pressure switch that has been set to different cut-in pressure and cut-out settings.
#Air compressor pressure switch professional
At Advanced Air & Vacuum, we always recommend having a professional look at your manufacturing sector air compressor to see what the system will bear, or if any other upgrades would need to happen before pressure switch adjustment takes place.
This is especially important when you’re considering adjusting the higher pressure end of your switch, because the rest of the system may not be rated to higher pressures and turning up the pressure can damage it if the rising pressure doesn’t trip a faulty safety valve and tank pressure gets too high. For the most part, operating within this range, especially the cut-out pressure setting, is the best way to operate your air compressor. Go to my buying a compressor pressure switch page, for buying advice and to buy a pressure switch directly online.Your electric air compressor is designed to operate within specific air pressure ranges, with pre-set cut-in pressure and cut-out pressure setting options. Keep in mind the points mentioned above under 'models and options'. When buying a (replacement) air pressure switch, it's important to buy one that will fit your air compressor.
I have created a separate page, where I explain how a compressor pressure switch works. You know that a pressure switch 'senses' the air pressure in some way and switches the electrical contacts open and close, depending on the pressure and the settings. This is a Condor MDR 11, which is a very popular type of pressure switch. You can read about all the different types and models on our air pressure switch types and models page. Some pressure switches can switch a 3-phase motor directly, while other can only switch a small control current (for use with a central controller).
Some have extra options integrated, like a blow-down valve, or have an option to add these kind of extra's.Īlso, there are big difference with regards to electrical and physical connections. Pressure switches come in a big variety of types and shapes.
#Air compressor pressure switch how to
I have created a detailed explanation about the correct pressures, and how to set them on our air compressor pressure switch settings page. It will save you both money by saving on energy, and by saving on maintenance and repair costs. It's important to set the pressure switch at the correct cut-in and cut-out pressures. Typical air compressor pressure switch Pressure switch settings
Often, there is a blow-down valve (pressure relieve valve) integrated, which will relieve the pressure on the compressors discharge pipe. With two set-screws you set the upper and lower pressure. The air compressor pressure switch on small and older compressor is a completely mechanical device. The pressure switch tells your compressor when to stop and when to start.īut in my experience, it is also a part that will break down quite often. The pressure switch is an important part on your air compressor. Perfect air pressure control with the right pressure switch, so your compressor starts and stops exactly when you want.
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