For estimating Pressure Drop on Liquids other than Water:

Formula:

Pressure Drop =

(Viscosity in Centipoise*) ^1/4  x  (Specific Gravity) ^3/4  x  Pressure Drop in Water*

*Note:  Click on the formula for help.

Example:

Calculate pressure drop on a 2" flowmeter at 100 GPM on #2 Fuel Oil

P = (3.0625) ^1/4  x  (0.875) ^3/4 x 1.0

(1.32288)  x  (0.9047)  x 1.0 = 1.19681