What is the relationship between gauge and absolute pressure? ResolvedLocked

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For measuring pressure there are two reference points. When the reference point is standard atmospheric pressure, the measured pressure is called gauge pressure and is written with suffix psig. When the reference point is perfect vacuum, the measured pressure is called absolute pressure and is written with suffix psia

Thus standard atmospheric pressure at sea level is 14.696 psia = 0 psig.

Perfect vacuum =  0 psia = -14.696 psig

Absolute Pressure (psia) = Gauge Pressure + 14.7psia

absolute pressure

A
Posted 3 years agoby admin
#23305 viewsEdited 2 years ago

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