Pressure Differential

Pressure differential, abbreviated as \(\Delta p\), is the pressure difference between two points of a system.

 

PRESSURE DIFFERENTIAL formula
\(\large{ \Delta p = \frac {   1.59923 \; p \; d^4 \; \rho   }  { m_f^2 } }\)
Symbol	English	Metric
\(\large{ \Delta p }\) = pressure differential	\(\large{\frac{lbf}{in^2}}\)	\(\large{Pa}\)
\(\large{ \rho }\) (Greek symbol rho) = density of fluid	\(\large{\frac{lbm}{ft^3}}\)	\(\large{\frac{kg}{m^3}}\)
\(\large{ d }\) = inside diameter of pipe	\(\large{in}\)	\(\large{mm}\)
\(\large{ m_f }\) = mass flow rate	\(\large{\frac{lbm}{sec}}\)	\(\large{\frac{kg}{s}}\)
\(\large{ p }\) = pressure change	\(\large{\frac{lbf}{in^2}}\)	\(\large{Pa}\)