Description: group of related goods produced by the same company under the same brand. ; Name: product family
Description: 2nd level of a 3 level manufacturer specific product hierarchy; Name: Manufacturer product family
Description: Speed that characterizes a pumps cavitation performance in terms of its speed, optimum rate of flow per impeller eye at best efficiency point and NPSH3 at best efficiency point for the first stage at maximum impeller diameter ; Name: Suction-specific speed