Geodetic Head

The static head means that part of the system H-Q curve that is unrelated to the flow.

The pumping performance of a centrifugal pump is expressed in the form of an H-Q curve, depicting the Flow Q (e.g. in m³/h) and the Head H (e.g. in m) of the pump.

The system H-Q curve depicts the dependency of the total head H_system on the Flow Q.

The system H-Q curve is essentially a parabolic curve representing the relation between the head (pressure) required to handle the respective rate of flow within a pipe system.

The dimensioning of pumps and pressure pipelines must be carried out step by step.

German standards DIN 24260, Pt.1 define the operating point (also working point) as the “intersection of the pump H-Q and the system H-Q curves.