Product Overview

It’s reliable. And we can prove it.
Reliability in real life
The CR is renowned for its reliability. And rightly so. The CR
design has all the durability that customers expect from a
high-quality multistage pump – and then some. We have
added unique features to ensure unsurpassed reliability:
dry-running protection, a unique cartridge seal, and a full-
titanium variant.
Extreme conditions call for extreme reliability. Less demand-
ing applications need fewer special features. The virtually
endless range of standard and customised CR pumps means
that you can always find the right pump, no matter what your
requirements may be.
Superior dry-running
protection
Dry running is the most com-
mon cause of pump failure.
In most pumps, the shaft seal
and bearings will burn out
almost immediately if liquid
stops flowing in the pump.
The Grundfos CR is different.
As part of our constant dedi-
cation to innovation, we have
tested new and alternative
materials to bring you the best possible solution. This means
that we can equip CR pumps with a shaft seal and bearing
system that can withstand extreme heat and friction for
longer periods of time. This makes them less unforgiving if
the pump does run dry.
The Grundfos LiqTec: checking for liquid 24 hours a day
For those who need to avoid dry-running altogether, the
Grundfos LiqTec is the answer. Available with all CR pumps,
the LiqTec is plug-and-play technology at its very best. Ever
vigilant, the LiqTec constantly checks that there is liquid in the
pump. If there isn’t, it stops the pump immediately. With the
Grundfos LiqTec, you always have someone watching your
pump.
In the event of dry running, the Grundfos
LiqTec immediately shuts down the pump
before any damage is done
CR 5GRUNDFOS