Description: range of values for the required incomming  signal or the required measurement; Name: range of values
Description: value range for the required input signal or measurement; Name: value range
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