Description: amount of gaseous substance in the liquid to be transported in the pump; Name: content of gas
Description: proportion of gaseous substance in the liquid to be pumped, either as a contaminant or as vapour from the main body of liquid; Name: gas content
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