Description: the result of the division from the number of failures in a given period through the period; Name: breakdown rate
Description: Number of failures within a population divided by the number of life units used by that population; Name: failure rate
Description: net positive suction head (NPSH) from flow rate at best efficiency point for actual impeller (indication of the minimum inlet pressure in meters required for the pump to deliver according to the QH curve. related to the optimum duty point at the current impeller diameter); Name: net positive suction head for Q opt at actual impeller size