Description: Ratio of the conveying power to the power absorbed by the drive; Name: Overall efficiency (of the pump unit)
Description: proportion of the driver power input, pmot, delivered as pump power output, pu; Name: overall efficiency
Description: Determined ten times the logarithm to the base 10 of the ratio of the sound energy, j, to a reference value, j0, expressed in decibels; Name: Sound energy level