17
FLOW RELATED FORMULAS
BPH =
Barrels Per Hour
GPS =
Gallons Per Second
BPD =
Barrels Per Day
GPD =
Gallons Per Day
BPM =
Barrels Per Minute
GPM = Gallons Per Minute
CFM =
Cubic Feet Per Minute
PRESSURE DROP vs FLOWRATE
Flowrate Gallons Per Minute
For estimating pressure drops on liquids other than water, use the following formulas:
P = [ VISC (CPS) ] 1/4 x [ S.G. ] ¾ [ PH O ]
Where:
CPS = Absolute Viscosity in Centipoise
SG = Specific Gravity
PH O = Pressure Drop at the Operating Flowrate from the Chart
GPM = Hz x 60
K-factor
Hz = GPM x K-factor
60
K-factor = Hz x 60
GPM
Pulses Per Litre = K-factor
3.785
Pulses Per Barrel = K-factor x 42
Pulses Per Cubic Meter = K-factor
. .003785
Pulses Per Pound = K-factor
Pounds Per Gallon
GPM = Pounds Per Hour
500 x S.G.
Pounds Per Hour = 500 x S.G. x GPM
Pounds Per Gallon = S.G. x 8.33 (Water)
BPH = GPM x 1.42857
BPD = GPM x 34.286
BPM = GPM x 0.238
GPS = GPM x .01666
GPD = GPM x 1440.0
GPM = BPD x .029167
GPM = BPH x 0.7
CFM = GPM x .13368
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