Description: Measured gap flow between pump casing and impeller; Name: flow of clearance
Description: measured clearance flow between the housing and the impeller; Name: clearance flow
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