Description: Head for the feed flow Q = 0; Name: Zero head
Description: Hoisting height for the feed flow Q = 0; Name: Zero-delivery height
Description: measure of the increase in the pumped liquid water on a pipe connected vertically to the pump when the flow rate is zero. related to the operation of the pump at 1,450 rpm with maximum impeller size; Name: pump shut-off head for maximum impeller diameter at 1450/min