Close Coupled Centrifugal Pumps

A centrifugal pump transfers the kinetic energy of the motor to the liquid by a spinning impeller. As the impeller rotates, it draws in fluid causing increased velocity that moves the fluid to the discharge point.

Single stage centrifugal pumps have one one impeller, wheras multistage pumps have more than one. As the number of impellers dictate the pump's pressure capabilities, single stage pumps are typically used where flow rate is more important than pressure, whereas multistage pumps are designed for higher pressure applications.

A vertical pump means that the motor is installed above the pump head as opposed to being level with it. As this makes a vertical pump's footprint smaller than an equivalent duty horizontal, they are typically used when space saving is key.

The biggest advantage is that centrifugal pumps have a simplistic design with fewer components, making them smaller and less expensive than a positive displacement pump of the same duty.

Centrifugal pumps are typically designed for pumping low viscosity, clean fluids such as water, chemicals and light fuels.

With the exception of our specially designed Azcue CA pump, centrifugal pumps are unable to self prime without the help of an additional electric or vaccuum assisted priming pump which we can supply. If the suction conditions of your installation require a self priming pump, it may be that we advise of another pumping techology that is more suited.

Generally speaking, centrifugal pumps due to their tight tolerances are designed for clean liquids but if a vortex or open impeller is selected some solids are able to be handled. For more information on the impact of impellers, read our article https://www.castlepumps.com/info-hub/pump-impellers-the-types-their-impact

The flow rate of centrifugal pumps rapidly declines with an increase in viscosity duty to the internal friction. They are therefore typically designed for pumping low viscosity fluids such as water, chemicals and light fuels.

Unfortunately not. The high internal velocity/force that is applied upon the fluid by a centrifugal pump can damage or alter the consistency of a delicate fluid. Therefore, centrifugal pumps are designed for non-sensitive fluids such as water, light fuels and chemicals.