Geodetic head

Geodetic head
  1. Pump curve
  2. Hgeod when water level low
  3. Hgeod when water level high
Geodetic head
  1. Pump curve
  2. Hgeod when water level low
  3. Hgeod when water level high

Geodetic head refers to the actual physical difference in height between the liquid level in the pit and the highest point of the discharge pipe or water level in the outlet.

Geodetic head refers to the actual physical difference in height between the liquid level in the pit and the highest point of the discharge pipe or water level in the outlet.

The geodetic head between a pumping station and the outlet from the pumping station will constantly change during a pump cycle. When dimensioning a pump, the average water level between start and stop is normally used for defining the geodetic head.

Here it is important to understand that the geodetic head also can be negative. This will result in the siphoning effect.


Subscribe to newsletter
Grab the opportunity to stay up-to-date on Grundfos news and events. Sign-up and we will send you our newsletter.

How would you rate your experience with our website?



Additional comments

Email