PSIA vs PSIG vs PSI: Understanding Pressure Measurements
If you’ve ever looked at an air compressor gauge or a spec sheet, you’ve probably seen terms like PSI, PSIA, and PSIG. At first glance they look almost identical, but the differences matter—especially in engineering, HVAC, and compressed air applications. Choosing the wrong scale can lead to misreadings, underpowered systems, or even safety risks. In … Read more