GRUNDFOS Blueflux®
Advanced motor technology that reduces energy waste in pump
applications
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What makes Grundfos Blueflux® better?

Grundfos Blueflux® combines Grundfos competences in three vital areas: motors, VFDs and
pump design
Every aspect of the technology driving a Grundfos Blueflux® solution has been developed to answer the
real needs of the applications it is installed in – and always with an emphasis on reliability and efficiency.
Minimised energy loss
Grundfos Blueflux® motors’ efficiency has been achieved
through extensive design optimisation. Using state-of-the-art
computer simulations, Grundfos engineers have succeeded in
minimising the four main types of losses that occur in an
electrical motor:
1) Excessive losses in the stator windings,
2) Losses in stator and rotor laminations due to eddy currents
and hysteresis,
3) Losses due to current flow in rotor bars and end rings and
4) Losses due to friction in the bearings.
Cool-running
The efficiency of Grundfos Blueflux® motors means that a
minimum of energy is lost, which reduces the amount of heat
generated. This means less power is needed for fan cooling and
that in turn means less noise is generated. The cooler motor
also means longer lifetime on bearings, insulation material and
less heat to the ambient environment.

In addition, Grundfos Blueflux® solutions with integrated
variable frequency drives require only one fan to cool the
motor and drive.
Better bearing conditions
The lower operating temperature of Grundfos Blueflux® motors
ensures that their bearings need less frequent re-greasing.

Only recognised high quality bearings are used and in larger
Grundfos Blueflux® motors with variable frequency drives (11-
22 kW), a bearing monitoring function automatically displays a
warning when it is time for re-greasing or bearing replacement.
The right drive configuration
With Grundfos Blueflux® you can be sure that the VFD is
configured correctly for the job at hand. Because all software
and interfaces are purpose-built, installation error is eliminated
and establishing the right performance levels is a
straightforward task.

External VFDs come with unique software for 33 Grundfos
pump ranges. The integrated drives are fully pre-programmed
at the Grundfos factory and then delivered as plug ’n’ pump
solutions.

One of the most crucial challenges in pump performance is
keeping one or more values constant. That is why Grundfos
Blueflux® drives have a range of special features that
maintain system control over a range of parameters such as
constant pressure, constant differential pressure, proportional
pressure, constant level and constant temperature.
Component quality
Grundfos controls the entire Grundfos Blueflux® supply chain,
which guarantees all components are of the very highest
quality. Our manufacturing facilities are certified to ISO 9000
standards or higher and our machining techniques ensure
complete uniformity.

This means that a Grundfos Blueflux® solution is built to last,
on the outside and within. For example, the housings of both
motor and VFD are built especially for operation in the harsh
conditions so common in industry. The connections between
PCB circuits prevent vibration damage. The PCBs themselves
are interconnected with lead frames and connectors rather
than cables for extra durability.
The responsible choice will pay back more

Grundfos Blueflux® not only starts saving energy immediately, it also has a
very short payback time on investment
On average 85% of a normal pump system’s Life Cycle Cost (LCC) is energy. Switching to Grundfos
Blueflux® can provide an LCC reduction of up to 50% – not to mention a serious reduction in related
emissions. And while Grundfos Blueflux® can initially cost a little more, the payback period for this
difference is usually less than 2 years. After this short period, the substantial financial and environmental
benefits just keep on growing.
There are 5 sides to the number 1
Behind Grundfos Blueflux® lies an expert understanding of the real challenges faced in professional sector
pump applications. That is why it delivers substantial benefits in the 5 most important areas.

Lower life cycle costs
Once a Grundfos Blueflux® product is switched on, it starts saving. Far more efficient than conventional
motor technology, Grundfos Blueflux® solutions with VFDs can reduce energy consumption by up to 60%.
Energy generally accounts for 85% of a pump’s overall life-cycle costs – Grundfos Blueflux® solutions can
often reduce the lifecycle costs by up to 50%.

The outstanding reliability of Grundfos Blueflux®
Reduces day-to-day service costs. Every Grundfos Blueflux® solution is built to thrive in the harsh and
demanding operating conditions so common in the professional sectors.

Superior system control
Grundfos Blueflux® VFDs are perfectly matched to the pump they are attached to. When used in
combination with a sensor they enable a very fine and consistent level of control over chosen parameters.

Longer operational lifetime
Grundfos Blueflux® doesn’t just save more, it saves for longer. All the components are of Grundfos quality
and each motor and VFD is designed to operate for years and with minimised wear and tear in mind.

Lower environmental impact
Grundfos Blueflux® not only reduces emissions through operational efficiency, Grundfos also makes the
manufacturing process as efficient as possible and uses components with a very high degree of recyclability.
Discover how a Pump Audit can lead to savings in
your application

A Grundfos Pump Audit is the most effective way to analyse whether your
pump system is operating as effectively as it could be. It compares the Life
Cycle Costs of your system with a more optimised configuration and product
choice.
Latest Updates

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