Badger Meter Flo-tech PFM Series - Hydraulic Formulas and Viscosity Information; Flow Rate Calculation Formulas; Power Calculation Formulas

September 2012 Page 23
PFM Portable Hydraulic Testers PFM6, PFM6BD, and PFM8
HYDRAULIC FORMULAS AND VISCOSITY INFORMATION
Flow Rate Formulas
Frequency (Hz) =
K GPM
60
x
GPM =
Hz 60
K
×
K-Factor (K) =
Hz 60
GPM
×
Time Base (TB) =
GPM
Hz
Flow Rate Related Formulas
Valve C Factor =
Flow Rate (GPM) Fluid Specic Gravity
V
×
∆∆P Across Valve (PSI)
Cylinder Velocity =
0.3208 Flow Rate (GPM)
Net Cylinder A
rrea (in)
2
x
Fluid Mortor Torque =
Flow Rate (GPM) Pressure (PSIG)
××
336.77
Rotational Speed
Power Formulas
H.P. =
LPM Bar
447.4
x
H.P. =
LPM Bar
447.4
x
kW =
LPM Bar
600
x