Description: Degree of protection of a housing; Name: device class
Description: degree of ingress protection offered by a housing or enclosure; Name: enclosure type no/class
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