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PRESSURE
PSI X 27.68 = Inches of H2O
PSI X 2.307 = Feet of H2O
PSI X 2.036 = Inches of Mercury
PSI X 6.895 = Pa = n/m2
PSI X 6.895 = Kpa
PSI X 6.895 = Millbar
PSI              = BAR X 14.5
PSI             = KG/m2 X .001422
PSI             = KG/cm2 X 14.22

FORMULAE
HHP = (GPM x PSI) / 1714
HHP = (BPH x PSI) / 2450
BHP = (GPM x PSI) / (1714 x ME)
 

FLOW RATE
GPM x 34.29 = BPD
GPM x 1.429 = BPH
GPM x 8021 = ft3/hr
GPM = BPD x .0292

PLUNGER PUMP FUNDAMENTALS
Pressure = Rod Load / Plunger Area
Gallon Per Rev = Plg Area x Stroke x Number Cylinders / 231
Horsepower = GPM x PSI/ 1714 (M.E.)

CENTRIFUGAL PUMP FUNDAMENTALS
Head in feet = PSI x 2.31 / S.G.
Pressure = TDH x S.G. / 2.31
BHP = GPM x TDH x S.G. / 3960 x Pump Efficiency
 

ABBREVIATIONS
BHP = Brake Horsepower    LPM = Liters per Minute
BPD = Barrels per Day LPS = Liters per Second
BPH = Barrels per Hour M = Meters
cc = Cubic Centimeters ME  = Mechanical Efficiency
cm = Centimeters MM  = Millimeters
GPM = U.S. Gallons per Minute mmHG  = Torr = 1/760 Atm
HHP = Hydraulic Horsepower mmWS  = Millimeter Wassersaule
IGPM = Imperial Gallons per Minute MWS  = Meter Wassersaule
KP = Kilopounds N  = Newtons
KPa = Kilo Pascal Pa  = Pascal
 
ADDITIONAL INFORMATION IN ADOBE READER PDF FORMAT
Conversion Table

Speed Ratings

Thermoplastic Pipe

Where there is an application, we can provide a pump.
 

 
ODESSA PUMPS ©2008
Design: T.Alan, NetWest Online