How does a pump chart work?

A pump moves water and simultaneously delivers pressure ( boost pressure in m). How much water is finally displaced depends on the height to which water is pumped and the resistance that occurs in a hose, coupling or, for example, a filter, which is connected to the pump. The maximum specified capacity is at free flow of a pump (0 head), the more resistance a pump encounters, the lower the capacity becomes. To determine which pump you need, there are several things to consider.

BluFlow pompgrafiek voor het bepalen van de output bij een bepaalde opvoerhoogte
Image: The pump chart of the BluFlow pond pumps