181 PSIG equals what pressure in PSIA?

To convert gauge pressure (PSIG) to absolute pressure (PSIA), you need to account for atmospheric pressure, which is typically around 14.7 PSI at sea level. The formula to find absolute pressure is:

PSIA = PSIG + Atmospheric Pressure

In this case, you would add the atmospheric pressure to the given gauge pressure of 181 PSIG:

PSIA = 181 PSIG + 14.7 PSI = 195.7 PSIA

This calculation shows that if the gauge reads 181 PSIG, the absolute pressure, which takes into account the atmosphere, is indeed 195.7 PSIA. Understanding this conversion is critical for operations in a variety of fields, including thermodynamics, fluid mechanics, and process operations, where precise pressure measurements are crucial for safety and equipment performance.