Differential Pressure Flow Meters

Differential pressure meters use Bernoulli’s equation to measure the flow of fluid within a pipe. Bernoulli’s equation determines that pressure drop across the constriction is proportional to the square of the flow rate.

Measures the flow of liquid within a pipe by introducing a constriction that creates a pressure drop. Pressure sensors measure the pressure before and after the constriction. The resulting pressure drop that occurs across the constriction is relative to the square of the flow rate; a higher pressure drop equals a higher flow rate.