Differential Pressure

Definition - What does Differential Pressure mean?

Differential Pressure is the measurement of the force exerted by fluid per unit cross sectional area subtracted from higher measurement of force exerted by fluid per unit area. In simple terms, it is the pressure difference between two points. In order to determine the Differential Pressure across a pipe in which crude oil is flowing, a comparison can be made by noting down the pressure inside and outside the pipe.

Petropedia explains Differential Pressure

Differential Pressure is commonly associated with industrial processes because it is an important element used to maintain the proper pressure conditions for effective working of machineries. Differential pressure gauges are used to measure pressure conditions across industrial processes. These gauges have two inlet ports and each port is connected to the volume whose pressure needs to be determined. These gauges are capable of performing mathematical operations of subtraction with the help of mechanical means and they allow operators to determine the differential readings.

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