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Minimum flow

Smallest permissible flow rate which the pump can deliver continuously, without damage, at speed and pumped liquid according to the delivery contract.

For special applications, the minimum flow rate is also specified in technical standards and regulations via the minimum flow velocity.

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Pipe diameter

The selection of the optimal pipe diameter depends on various parameters.

Waste water drainage

Decisive for the design is the expected wastewater discharge.

Rainwater drainage

The precipitation values are climatically conditioned and regionally very different. Depending on their frequency, the rainfall donations that occur are differentiated into:

Pump Performance Curve

Performance Curves

Pump Performance Curve

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.

Calculating the System H-Q Curve

Performance Curves

Calculating the System H-Q Curve

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

System Curve

Performance Curves

System Curve

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.