Posted by on Feb 16, 2017 in Uncategorized |

One of the tools we can find around the house are air compressors. In fact, we could not just see them in our homes. They are very handy and useful tools when it comes to doing industrial processes everywhere. What is the main function of this equipment? The air compressor works well with other tools in order to make your household improvement projects and installations a successful and effective one.

Now, to maximize the efficiency and the power of these air compressors at its best, you need to make sure that the parts of the air compressor must be 100% in good condition all the time to ensure that it could do what it is tasked to do. If you do not know its parts and functions, then this article would teach you a bunch of knowledge about this matter.


If you are someone who is not really acquainted with do-it-yourself jobs, for sure you really do not know so much about its parts. Much like any other portable appliance, the air compressor has several parts which might be a bit confusing to you which is why below, you will come to understand the most basic parts of an air compressor and the functions they do. Let’s start studying the following:

Source – PMJ (


Like any other type of machine, air compressor needs an electronic motor so that it could power up the machine. As a tip of advice, you need to install a magnetic starter so that damage could be avoided in the motor in the moment of a power overload.


This part acts as a storage of the air being compressed in the device. The tank composes the large percent of the overall structure of an air compressor. A typical tank can actually store 1-10 gallons or even more depending on the needs of the user. Now, if you have a bigger construction needs, then you can get a bigger one. However, if your air compressor use is only limited for home or small construction jobs, then you can use the 3 gallon tanks. Again, the storage capacity of the equipment should be based on the amount of existing need.

Compressor Pump

The compressor pump plays a very important role in compressing and discharging the air into the receiver. If you have a two stage air compressor, then it definitely needs two cylinders pumps in order for the tool to work. As an additional knowledge for you, take note that this compressor pump compresses the air twice by

1.) compressing the air initially in the larger, low pressure cylinder then

2.) onto the smaller, high pressure cylinder.

Pressure Switch

This part controls the shutdown of the motor. You can actually call this as an emergency switch. Its main function is to regulate the pressure the tank could take. Once the receiver of the air compressor reaches the limit set by the factory, then it automatically turns off. Now, the moment the pressure level drops low to the pre-set level, then this pressure switch would restart the motor.

Drain valve

The drain valve is responsible for the elimination of oil, dirt, moisture. This is to ensure that there will be no debris that could possibly trap inside the tank. Take note that without this, the moisture and oil would cause the inside of the tank to rust. Hence, drain valves needs proper and regular maintenance.

Pressure Gauge

This functions as a measuring device of compressed air in the tank. With the pressure gauge, the user will be aware of the measurement value of compression.