Total Head

Total head, abbreviated as \(h_t\), is the sum of the discharge flange and the sum of the suction flange.

 

Total Head formula
\(\large{ h_t = \frac{ 3960 \; WHP }{ Q }   }\)
Units	English	Metric
\(\large{ h_t }\) = total head or height	\(\large{ft}\)	\(\large{m}\)
\(\large{ Q }\) = flow rate discharge	\(\large{\frac{ft^3}{sec}}\)	\(\large{\frac{m^3}{s}}\)
\(\large{ WHP }\) = water horsepower	\(\large{\frac{lbf-ft}{sec}}\)	\(\large{\frac{btu}{s}}\)

• 1 horsepower = 3960 gal/min/foot