Pump theory

Flow

Flow

Technically flow describes the volume of liquid pumped within a given period of time ....

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Flow
Head

Head

Technically, head means metres of water column ...

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Head
Pressure

Pressure

Pressure can be defined as an adapted meaurement of pump performance ...

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Pressure
Density

Density

Density expresses how heavy a liquid, gas or solid is ...

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Density
Viscosity

Viscosity

Viscosity is commonly perceived as "thickness", our resistance to "pouring" ...

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Viscosity
Power consumption

Power consumption

The word power can have many meanings. When focusing on power in connection with a pumps, it is often in relation to the power consumption of a pump ...

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Power consumption
Pumps and pump operation

Pumps and pump operation

Choosing the most energy-efficient solution sets the foundation for dramatic savings on operating costs ...

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Pumps and pump operation
Adaptation

Adaptation

Imagine that you drive a car and you regulate the speed of the car by stepping on the brakes while you keep stepping on the speed ...

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Adaptation
Cavitation

Cavitation

In most cases where a Grundfos pump has a premature failing, the reason is to be found in the installation. Some of the worst failures are caused by cavitation ...

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Cavitation
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