Surface World November 2019 Surface World November 2019 | Page 46
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PUMPS & FILTRATION
Leak-free Mag-Drive Pumps ideal
for hazardous applications
Reliable, leak-free pumping
is essential in many fluids
handling applications and
absolutely critical when the
process involves corrosive,
toxic, explosive or any other
type of hazardous liquids.
Magnetically coupled
centrifugal pumps, are by
design, one of the safest
and most reliable options
and the DICKOW KM Series
of pumps is an excellent
example of a safe, reliable
and competitively priced
pump for these types of
applications.
Available from pumping specialists MICHAEL
SMITH ENGINEERS, the KM Series is a range
of sealless, single-stage, volute casing pumps
with a maximum flow rate of 70m³/hr
maximum differential heads to 65 metres
and maximum operating temperature up to
200ºC. A key benefit of the magnetic
coupling design is that it results in a sealless
pump and because mechanical seal failure is
sometimes regarded as the ‘Achilles heel’ of
other types of pump, these potential
problems are eliminated. This minimises the
potential for downtime and lost production
along with no cross contamination of the
pumped liquid, less wastage, no
environmental hazards due to leaks and
increased operator safety.
These robust, reliable pumps can handle
liquids with viscosities between 0.1 cP and
44
forces and work as a
synchronous coupling.
The internal clearance
between the rotor and
containment shell is 1.0mm
for the standard containment
shells which allows handling
of fluids containing small
solids. The pump drive shaft is
carried by oil lubricated
anti-friction bearings rated for
25,000 operating hours and
the oil bath is protected by a
labyrinth seal.
When fitted with suitable
Ex-drive motors, the pumps
can be applied in hazardous
area Group II, category 2
situations while they also meet
the basic health & safety
requirements of Explosion-
proof Directive 94/9 EC and
so are suitable for sites with
increased safety requirements.
200 cP and are available in either horizontal
or vertical configuration and in a choice of
wetted materials of either cast iron, cast steel
and stainless steel. The vertical configuration
option with the motor mounted on the top
eliminates the need for a base plate so is
ideal when space is limited.
The single elements of the multipolar magnet
coupling are manufactured from Cobalt-
Samarium with unlimited lifetime durability
while the magnets in the driven rotor are
completely encapsulated and not in contact
with the liquid. Power is transmitted to the
hermetically sealed liquid end by a bank of
external magnets and the inner and outer
magnet rings are locked together by magnet
NOVEMBER 2019
Typical applications for
Dickow KM Series pumps
include tanker unloading and
unloading and transferring to
and from bulk storage vessels.
For example, in food or beverage processing,
soap and cosmetics manufacturing, biofuels
production, bulk chemical storage, or
wherever there is a need for reliable,
leak-free pumping of larger volumes of
hazardous liquids. Ends
More details at: https://www.michael-
smith-engineers.co.uk/products/
dickow/single-stage-centrifugal-pumps/
single-stage-centrifugal-pumps-with-
magnet-drive/km-series
Telephone: FREEPHONE: 0800 316 7891
Email: [email protected]
Visit: www.michael-smith-engineers.co.uk
read online: www.surfaceworld.com