4th December 2019

quora
12

What is the difference between bar and bar g?

The difference between bar and barg is the difference in the reference you take. Measurement of pressure is always taken against a reference. It means that pressure difference is measured. If the reference is atmospheric pressure (1 bar) then pressure is cited in barg.

Subsequently, one may also ask, what is bar gauge?

Bourdon tube pressure gauges, vehicle tire gauges, and many other types of pressure gauges are zero-referenced to atmospheric pressure, which means that they measure the pressure above atmospheric pressure (which is around 1 bar); this is gauge pressure and is often referred to in writing as barg (spoken "bar gauge").

What does Barg mean in pressure?

barg means bar-gauge (gage) bara means bar-absolute (including atmospheric pressure) bara = barg + atmospheric pressure (Atm), if 1 Atm = 1 bar, bara = barg + 1.
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