Description: the largest volume flow achieved at maximum efficiency; Name: Optimum flow capacity
Description: Rate of flow at the point of best efficiency; Name: Optimum rate of flow
Description: measure of the increase in the liquid to be pumped, water, on a pipe connected vertically to the pump when the flow rate is zero. related to the operation of the pump at 2,900 rpm with maximum impeller size; Name: pump shut-off head for maximum impeller diameter at 2900/min