Description: the durability describes how well the object fulfills the required function up to the end of its useful life; Name: long-lastingness
Description: Ability of an item to perform a required function under given conditions of use and maintenance, until the end of useful life ; Name: Durability
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