Description: difference between the instant value of pressure and the static pressure; Name: pressure of sound
Description: measured dfifference between instantaneous pressure and static pressure; Name: sound pressure
Description: Speed that characterizes a pump in terms of its speed, flow rate per impeller eye, i.e. total flow for single-flow impeller, half flow for double-flow impeller, at the best efficiency point and head per stage at maximum impeller diameter ; Name: Specific speed