The most widely used gas in the processing industries is the nitrogen gas and carbon dioxide gas. The nitrogen gas is used for cooling purposes because of its ability to remain coldest even when the temperature is hot. It is used to cool down huge generators where water and other liquids fail to do the task. Since these gases are transported in the liquid form as transporting in gaseous state is not possible. The extremely low temperature of the nitrogen gas keeps it in the liquid state which is very convenient and it can be installed directly in the right tanks.

The filling process is very sensitive because it can freeze the pipes from where it passes. Without using the liquid level indicator it can never be measured. And as this is not normal liquid or water, over filling can cause havoc and the pipes or the tank can burst immediately like a small nitrogen bomb. Nitrogen is widely used in the cooling process of chillers, huge generators, power grids and nuclear power stations. As these places can get extremely heated, using water as the only coolant would not do the trick efficiently and the machines would get heated to an extremely high temperature causing the machines to seize.

The soft drinks industry has one magic ingredient which causes the pop sound when the bottle is opened. This magic ingredient is none other than the CO2 (carbon dioxide) gas. The gas is filled in the bottles along with the drink. It is widely believed that the gas is filled after the liquid has been filled in the bottles, but today using modern techniques this process has been merged to reduce a processing step. By mixing the ingredients that produce gas during the manufacturing process, it gives a boost to the flavor and also eases the staff by elimination of an extra step.

When the gas is being produced it needs to be monitored by the ultrasonic level indicator which lets the staff know if there is anything to worry about or not. When the gas is being produced the liquid starts creating bubbles and the thick layer of foam appears in the container. The gas is allowed to be released through controlled chimneys until the required pressure remains. Then the huge mixers are put to work and everything mixes finely. After the process has been dine, the liquid is filled in the bottles which are then transported to the shop from where people purchase them and enjoy the tasty drinks.