18
Mechanical Technology — May 2013
⎪
Proactive maintenance, lubrication and contamination management
⎪
S
un’s model HCTB, centrifugal bag filter
(patent pending) features an in-housing
centrifugal flow formation and a unique bag
holder/dispenser assembly unit. This prod-
uct is designed to achieve multiple performance
advances, including:
• Improved in-housing liquid distribution.
• The elimination of the destructive hydro-
hammer effect on the bag bottom.
Filcon Filters will soon be introducing Sun Central’s
all new design filter bag housing to the South
African market.
Sun Central’s
new HCTB
filter bag hous-
ing.
Unlike the traditional inlet
design, HCTB features a novel
inlet pipe, which enters the
housing at a tangent.
Excessive pressure devel-
oped at the bag bottom is
released and channelled
upward through the dis-
pense pipe.
A flow illustration of
Sun Central’s pat-
ent pending HCTB
bag filter housing,
soon to be made
available in South
Africa through
Filcon Filters.
Innovative centrifugal bag filter
• Staged particle separation and reten-
tion.
• The holder/dispenser assembly acts
as a bag installer ensuring correct
bag installation.
• The destructive backwash effect
is eliminated because the holder/
dispenser assembly prevents the
bag from being sucked up by system
vacuum.
• Extended filter service life. The cen-
trifugal flow ensures full and even
utilization of the entire filter surface
area.
Swirl flow:
Unlike the traditional inlet
design, HCTB features a novel inlet
pipe, which enters the housing at a
tangent. As liquid enters the tangential
inlet, swirl flow forms un-
der centrifugal force. The
liquid proceeds downward
and enters the filter bag.
As the flow channel nar-
rows, the centrifugal flow
rate accelerates.
Accelerated flow:
Dur-
ing the swirling process,
coarser particles are
thrown outward and cap-
tured on the sides of the
bag media. Fine particles
proceed downwards to the
lower portion of the filter
bag. The deflector shield
effectively prevents these
particles from rising and
forces them into the filter
media under the deflector.
Deflected flow:
Since the
bag bottom mainly cap-
tures fine particles, the
potential destruction of
the bottom is significantly
reduced.
Hydro-pressure release:
Excessive pressure devel-
oped at the bag bottom
is released and chan-
nelled upward through the
dispense pipe, effectively
protecting bag bottom from bursting,
one of the most common problems.
The HCTB is manufactured by
ISO9001 certified Sun Central LLC,
Wilwaukee, USA at their Shanghai fac-
tory. Filcon Filters are the appointed sub
Saharan distributors for Sun Central’s
wide range of filtration products such
as bag housings, cartridge housings,
filter bags and filter cartridges.
Filcon Filters was established in
2000 and has branches in both Johan-
nesburg and Cape Town. In addition to
representing a number of international
filtration manufacturers, Filcon Filters
has a wide range of filtration products
manufactured to its design in Johan-
nesburg. The range includes the Dirt
Gobbla (a centrifugal separator), back
flushing automatic filters, in-line basket
strainers, purge strainers, and bag and
cartridge housings.
Filcon Filters prides itself on the
number of years of filtration experi-
ence the technical members have,
which enables the company to provide
clear solutions to filtration needs and
problems.
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