Description: Power consumption due to friction in bearings and shaft seals at certain working conditions of the pump; Name: mech power losses of pump
Description: power absorbed by friction in bearings and shaft seal at given operating conditions of the pump; Name: pump mechanical power losses
Description: 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