Fuel Supply Technical Data & Tools


CONVERSION FACTORS HYDRAULIC FORMULAS HEAD & PRESSURE EQUIVALENTS SPECIFIC GRAVITY/VISCOSITY PRESSURE & CONVERSION TABLE PUMP DRIVE MOTORS PIPE FRICTION FLAMMABLE LIQUIDS FLASH POINTS

Conversion Factors

1HP = 33,000 ft. lbs. per minute
1HP = 42.4 btu per minute
1HP = 0.746 kwhr (kilowatt hours)

1 U.S. Gallon = 231 cubic inches

Pipe Volume varies as the square of the diameter -
Volume in Gallons = 0.0034 x D² x L
D = inside diameter of pipe in inches, L = length in inches

Velocity in Feet Per Second = ( 0.408 x flow (gpm) ) ÷ D²
D = inside diameter of pipe in inches

Atmospheric Pressure at Sea Level = 14.7PSI
Atmospheric pressure decreases approximately 0.41PSI for each one thousand feet of elevation up to 23,000 feet.

Pressure (PSI) = feet head x 0.433 x specific gravity

Specific Gravity of Oil = 0.85 approximately

Thermal Expansion of Oil = approximately 1 cubic inch per 1 gallon per 10°F rise in temperature