F

force, [F = mL/t2]

Fv

control valve viscosity correction factor, Fig. 10-23

Hv

pump head, [L]

Hv

head loss across valve, [L]

k

isentropic coefficient, (k = cv/cp for ideal gas), [—]

Kf

loss coefficient, [—]

m

mass flow rate, [M/t]

NRe

Reynolds number, [—]

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