Pressure Differential Formula |
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\( \Delta p \;=\; p_h - p_l\) (Pressure Differential) \( p_h \;=\; \Delta p + p_l\) \( p_l \;=\; p_h - \Delta p \) |
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| Symbol | English | Metric |
| \( \Delta p \) = Pressure Differential | \(lbf \;/\; in^2\) | \(Pa\) |
| \( p_h \) = High Pressure | \(lbf \;/\; in^2\) | \(Pa\) |
| \( p_l \) = Low Pressure | \(lbf \;/\; in^2\) | \(Pa\) |
Pressure differential, abbreviated as \(\Delta p\), is the difference in pressure between two points within a fluid system, such as a pipe, tank, or the atmosphere. It represents how much higher or lower the pressure is at one location compared to another, and it is this difference that drives fluid flow and movement. When there is a pressure differential, fluids naturally move from the region of higher pressure to the region of lower pressure, creating flow, circulation, or mechanical force. Pressure differentials are essential in many physical processes and engineering applications, including pumps, ventilation systems, hydraulic devices, and weather patterns. The pressure differential helps predict how fluids will behave and allows engineers to design systems that control and utilize fluid movement effectively.
