Calibration gases

Air is a colorless, odorless and non-flammable gas. Industrial air is used in air pressure arc welding, in the plasma arc cutting (PAC) process. Industrial air should not be used as a substitute for breathing air. Oxygen in the air is essential for combustion, respiration and various industrial processes – including oxidation. Buy your compressed air gas from Parsia Gas online.


You may not know it, but compressed air is involved in every aspect of your life, from birthday party balloons to air in the tires of our cars and bicycles. It is even used in the manufacture of telephones, desktop computers and laptops.

As you probably guessed, the main ingredient of compressed air is air. Air is a gaseous mixture, consisting of many gases, including nitrogen (78%) and oxygen (21%). In fact, it consists of different air molecules and each of them has a certain amount of kinetic energy.

Air temperature has a direct relationship with the average kinetic energy of these molecules. That is, if the average kinetic energy is high (and the air molecules move faster), the air temperature will be high, and when the kinetic energy is low, the air temperature will be low.

Compressing the air causes the molecules to move faster, resulting in an increase in temperature. This phenomenon is called “heat of compression”. Compressing air literally means locking it in a smaller space and of course bringing the molecules closer together. The energy released when doing this is equal to the energy required to get air into the smaller space. In other words, it stores energy for future use.

For example, consider a balloon. By inflating the balloon, the air has to become less dense. The energy contained in the compressed air inside the balloon is equal to the energy needed to inflate it. When we open the balloon and the air is released, this energy dissipates and makes the balloon fly. This is the basic principle of the positive displacement compressor.

Compressed air is an excellent medium for storing and transferring energy. Compared to other energy storage methods such as batteries and steam, it is flexible, versatile and relatively safe. Batteries are bulky and have a limited charge life. On the other hand, steam is neither economical nor user-friendly (it gets very hot).


Look around you, what do you see? Maybe the computer is in front of you? You may be sitting at a desk, you may even see some paper around you. what are you thinking Weekend? Are you going to go skiing or playgrounds or even the sea and diving? Whatever vacation you choose, compressed air is involved in some way. However, that’s not all, compressed air is used in all of the above and more.


When you think about the above examples, you may wonder how compressed air is used in these situations. Air is used in industry in two ways: as energy and as part of a process. These two types are called Energy Air and Active Air respectively.

First of all, Energy Air is used to store and transfer energy to perform mechanical work. For example, it is used to supply pneumatic production equipment, air cutting parts, clean parts under pressure and transfer or cool components during production.

In other words, active air is required as an active and integral part of a specific process. In this case, because the air comes into contact with the product, the quality of the air is very important. The quality of clean and dry air, abbreviated as CDA quality, can be increased by using oil-free compressors and air purifiers, as well as by using high-quality tools in the air. This type of compressed air is used in the following industries:


Compressed air applications

Compressed air has a great effect on bus performance. At first, you might think that air compressors are only used to inflate tires. Not limited to this, they are used in the production of tires, fabric on seats and sanding of metal exhaust pipes. Most importantly, compressed air is at the heart of the bus’s safety system. A compressor is at the heart of the air brake and suspension system, it also causes the airbag to deploy in the event of an accident.


Read more: Compressed air quality measurement