Description: date on which the last service was performed on the component; Name: date of the last service
Description: date when the device was last serviced; Name: Last servicing date
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