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Increasing or
decreasing the
flow rate of
pumps is quick
and easy with
MyFlow Drive.
Source: KSB Aktiengesellschaft Frankenthal
KSB Presents New Drive Solution For
Fixed Speed Pumps
At this year’s Hannover Messe the Frankenthal-
based pump manufacturer KSB is presenting
a new, smart drive solution for fixed speed
pumps. With the new MyFlow Drive, which
is fully compatible with Industry 4.0, the
fixed speed levels at the motor can be set to
individual requirements. This provides the user
with planning reliability as the flow rate of the
pumps can be increased or decreased quickly
and easily.
The conventional way for fixed speed
pumps is to match the flow rate and head
to the calculated design point by trimming
the impeller. With the supply voltage of the
IE5 synchronous reluctance motor being
modulated by the motor-mounted minimum
frequency inverter, the motor can be operated
on almost any power grid worldwide.
16
Water Leaders • May 2017
For global engineering contractors in particular
this is a huge advantage. They no longer need
to consider the local mains voltage when
selecting pumps.
The direction of rotation is now defined at
the factory, saving the time and costs usually
incurred by conventional direction-of-rotation
checks, which often resulted in mechanical
seal damage if the system was unfilled.
Furthermore, the costs for stockkeeping are
reduced as the number of sizes to be stocked
is much smaller.
Today, almost 70 percent of all standardised
pumps operate at a constant motor
speed. They are usually combined with IE3
asynchronous motors. Initially, the new drive
is available in combination with the Etanorm
pump series up to 11 kW. From the end of
2017, ratings of up to 45 kW will be on offer.