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Difference between bar and barg

Anonymous

∙ 16y ago

Updated: 4/28/2022

The 'g' added on to bar means 'gauge', as opposed to bara, meaning 'absolute'.

The 'zero' of a normal gauge is normally set at atmospheric pressure (things like tire pressure gauges, water gauges etc.) These gauges will read as "10 bar" but really mean that the absolute pressure is 10 bar + atmospheric pressure (~1.01325 bar).

Some gauges however are absolute gauges. These might include weather gauges, or gauges on closed processes.

bara = barg + atmospheric pressure

Wiki User

∙ 16y ago

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What is 3 barg pressure converted into bar?

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What is a pressure of 1 barg?

1 barg stands for 1 bar gauge pressure, which is the pressure measured above atmospheric pressure. It indicates a pressure of 1 bar higher than ambient atmospheric pressure.

How do you convert -0.02barG to barA?

To convert from barG (gauge pressure) to barA (absolute pressure), you simply add atmospheric pressure to the gauge pressure. Assuming standard atmospheric pressure is around 1 bar, the conversion would be -0.02 barG + 1 bar = 0.98 barA.

How do you convert 345 kpa to barg?

To convert kilopascals (kPa) to bar gauge (barg), subtract the atmospheric pressure (typically around 101.3 kPa) from the given pressure. In this case, 345 kPa - 101.3 kPa = 243.7 kPa absolute. Then, convert the absolute pressure to barg by dividing by 100, as 1 bar = 100 kPa. Therefore, 243.7 kPa / 100 = 2.437 barg.

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