Online Pump Head calculator.
Pump Head Formulas:
Imperial Units:
H = (2.31 ( Pd – Ps) / SG) + (Vd2 – Vs2) / 2g + (Zd – Zs) – Hf
where:
H = pump head, ft.
Hf = friction loss, ft.
PS = suction pressure, psia.
Pd = discharge pressure, psia.
SG = specific gravity.
Vs = suction velocity, ft/s.
Vd = discharge velocity, ft/s.
Zs = suction height from reference, ft.
Zd = discharge head from reference, ft.
g = gravitational constant, 32.2 ft/s2.
SI Units:
H = (10.2 ( Pd – Ps) / SG) + (Vd2 – Vs2) / 2g + (Zd – Zs) – Hf
where:
H = pump head, m.
Hf = friction loss, m.
PS = suction pressure, bar.
Pd = discharge pressure, bar.
SG = specific gravity.
Vs = suction velocity, m/s.
Vd = discharge velocity, m/s.
Zs = suction height from reference, m.
Zd = Discharge head from reference, m.
g = gravitational constant, 9.81 m/s.
