Description: Top level of a 3-level manufacturer-specific product hierarchy; Name: manufacturer product master
Description: Top level of a 3 level manufacturer specific product hierarchy; Name: Manufacturer product root
Description: Speed that characterizes a pump in terms of its speed, flow rate per impeller eye, i.e. total flow for single-flow impeller, half flow for double-flow impeller, at the best efficiency point and head per stage at maximum impeller diameter ; Name: Specific speed