Basic Knowledge of Air and Piping: Pressure Indication

When expressing the volume or amount of air, it is necessary to consider absolute pressure! An explanation of gauge pressure is also provided.

The state of air compression is not visible to our eyes, but it can be expressed using pressure, and the standard for judging pressure is called "pressure unit." The atmosphere around you actually has pressure as well. Air is compressed by its own weight, generating force, which is referred to as "atmospheric pressure." Pressure readings that do not consider atmospheric pressure are called "gauge pressure," while those that take atmospheric pressure into account are referred to as "absolute pressure." When expressing the volume or amount of air, it is necessary to consider absolute pressure, but in factories, pressure is displayed as gauge pressure. "Gauge pressure" is very convenient for supporting or lifting objects using compressed air, and in factories, pressure is generally considered to be gauge pressure unless otherwise specified. *For more details, please refer to the PDF materials or feel free to contact us.*

Pneumatic EquipmentAir Tools