Controllability and reducing energy costs are important objectives
in many pumping applications, as is the need for pumps to be able to run
dry. A good example of this is in centralised cleaning systems, such as
high pressure cleaning systems in food processing applications.
Hydra-Cell seal-less pumps, available through Michael Smith Engineers,
have been used to good effect in this type of application, resulting in
significant savings for users.
In one example, a customer was operating a centralised, high
pressure cleaning system for cleaning and preparation, running
constantly on an 8 hour shift. The system has several spray nozzles throughout the plant with demand ranging from 24 l/min up to 152 l/min.
However, pressure is required to be instant and constant to all the
spray nozzles. To meet the demand the previously installed centrifugal
pumps had to operate at high speed to maintain the required pressure,
while the unused flow was bypassed back to the feed tanks, a highly
A solution was to install two Hydra-Cell G25 pumps which can
operate between 0-100% of full speed, ensuring that the required
pressure can be maintained at very low flows. The G25 pumps were
supplied with a 'Unigy' drive, allowing the pump speed to be
increased or decreased according to the demand, whilst maintaining
optimum pressure. The result was significantly less energy required for
the pump motors, around an 84% saving.
Also, as the feed tanks occasionally run dry the ability for
Hydra-Cell seal-less pumps to operate safely without flow, eliminated
other maintenance issues.
The Hydra-Cell pump range covers a wide range of flow rates from
0.4 l/min up to 128 l/min and pressures up to 172 bar, providing
repeatable and accurate output. They can handle dirty liquids and
liquids with particulates and because they are seal-less by design,
leak-free, self priming and can be run dry, they are ideal for cleaning
As well as cleaning duties, HydraCell pumps can handle a wide
spectrum of industrial and commercial fluids across numerous
applications including; food processing CIP.
Contact Michael Smith Engineers on tel FREEPHONE 0800 316 7891 or
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