# Differential Pressure Calculator, Formula, Differential Pressure Calculation

## Differential Pressure Calculator:

Enter the values of applied pressure at point 1 in the system, AP1(psi) and applied pressure at point 2 in the system, AP2(psi) to determine the value of Differential pressure, dp(psi).

 Enter Applied Pressure at Point 1 in the System: psi Enter Applied Pressure at Point 2 in the System: psi Result – Differential Pressure psi

## Differential Pressure Formula:

The differential pressure is crucial for determining the efficiency and performance of pumps, compressors, and other equipment. It helps in measuring flow rates and detecting blockages or leaks within a system.

This pressure difference is also used in various industries for processes like filtration, where pressure differences across a filter indicate its performance.

The basic principle of differential pressure is that fluids move from areas of higher pressure to lower pressure, and this difference drives the flow of fluids.

A larger pressure difference between two points results in a faster fluid flow rate. Think of squeezing a water bottle harder – the water flows out faster.

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The direction of flow is determined by the higher pressure point. Fluid flows from the higher pressure region to the lower pressure region.

Differential pressure, dp(psi) in pounds per square inches is calculated by the difference of applied pressure at point 1 in the system, AP1(psi) in pounds per square inches and applied pressure at point 2 in the system, AP2(psi) in pounds per square inches.

Differential pressure, dp(psi) = AP1(psi) – AP2(psi)

dp(psi) = differential pressure in pounds per square inches, psi.

AP1(psi) = applied pressure at point 1 in the system in pounds per square inches, psi.

AP2(psi) = applied pressure at point 2 in the system in pounds per square inches, psi.

### Differential Pressure Calculation:

1. In an HVAC system, the pressure at one side of a filter is 1500 psi and the pressure on the other side is 1200psi. Calculate the differential pressure across the filter.

Given: AP1(psi) = 1500psi, AP2(psi) = 1200psi.

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Differential pressure, dp(psi) = AP1(psi) – AP2(psi)

dp(psi) = 1500 – 1200

dp(psi) = 300psi.

1. A differential pressure sensor measures a difference of 50 psi in a piping system. The applied pressure at one end of the system is recorded as 180 psi. Determine the applied pressure at the other end.

Given: dp(psi) = 50psi, AP2(psi) = 180psi.

Differential pressure, dp(psi) = AP1(psi) – AP2(psi)

AP1(psi) = dp(psi) + AP2(psi)

AP1(psi) = 50 + 180

AP1(psi) = 230psi.