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Cartridge Filters
Carbon block
The combination of the ultimate in plastics extrusion and
activated carbon technologies has transformed the future of carbon
filtration. By incorporating powder activated carbon and small
mesh structures with extrusion manufacturing methods, clean,
consistent and economic filters termed 'CARBON BLOCK' are created.
To cover all applications and constructed from all FDA-approved
materials, Fileder has four ranges of such carbon blocks-all
with the advantages over traditional granular carbon of greater
efficiency, longer life, higher flow, no channelling, lower extractables,
fine filtration, cleaner and more versatile.
Coconut carbon block
Three cartridge grades are manufactured from coconut carbon.
Being a natural, clean carbon media, coconut is often the preferred
choice and ideally suited to beverage and drinking water applications.
The washed carbon has minimal effect on raising pH and low extractables
whilst reducing chlorine and VOCs efficiently.
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CEP/CCB |
- Natural media for drinking water applications
The CEP is a 5 micron coconut carbon formulation with good
flow and chlorine reduction. Being acid-washed, the carbon absorbs
little C02, resulting in minimal effect to pH Values.
The CCBC is a water-washed finer mesh coconut carbon with
a 1 micron rating, effective at reducing Cryptosporidia and Giardia
cysts. This grade of carbon has twice the VOCs and pesticide
reduction capability of the CBC range due to the finer mesh structure
adsorbing VOCs' small molecules with equal chlorine, taste and
odour abilities. Finally, the CCBR is similar to the CCBC except
with a multi-media design for heavy metal reduction in particular
lead through 7500 litres. Being 0.5 micron rated, pre-filtration
is recommended to avoid premature plugging of the block.
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bituminous carbon block
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EPM |
- High flow economic batch process
The EPM range is aimed at applications where frequent change-out
is required; typically, batch process and where a lower capacity
cartridge suits regular routing change-outs. Extruded from bituminous
acid-washed activated powder with a medium mesh structure, the
high porosity design and 10 micron filtration prevent plugging
prematurely and eliminate the need for pre-filtration.
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EP |
- For general purpose applications
An extension to the EPM range offering 100% greater removal
capacity for 30% increase in cost. The EP range has a high dirt-holding
tolerance and is nominally rated at 5 micron for particulate
removal. Being of mined bituminous carbon with a medium mesh
structure the EP is excellent for industrial applications, making
it superior to the more expensive CBC for organic reduction due
to its large structure.
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CBC |
- Highest chlorine capacity, 0.5 micron
Utilising a finer carbon grade of bituminous acid-washed activated
powder, with small mesh structure, the CBC range offers the finest
particulate filtration at 0.5 micron and highest capacity for
chlorine reduction of all the ranges, as well as striking a balance
between organic and VOC reduction. CBCs are capable of reducing
99.9% of Cryptosporidia and Giardia cysts whilst maintaining
good flow versus pressure. Particulate pre-filtration is recommended
to ensure the cartridge life is maximised.
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granular activated carbon - longitudinal flow
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GAC |
- The industry standard that's time proven
- 52°C
For years, the GAC range has been Fileder's most popular carbon
cartridge and is a traditional favourite for specific applications
in spite of carbon block technology. The design, with flow from
bottom to top ensuring long contact time, allows for maximum
adsorption and treatment. Using a clean acid-washed bituminous
carbon with a large mesh size, this granular range is primarily
a chlorine, taste and odour reduction cartridge, with the advantage
of a coarse 20 micron filter pad to retain carbon fines that
is not susceptible to blockage if high particulate is present.
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CGAC |
- High capacity chloramine reduction.
- New range 2003
- 52°C
Designed specifically for reduction of chloramines where desired,
in applications such as renal dialysis, the CGAC is effective
for 7500 litres at 3.8 lpm (3 ppm feed, 0.5 ppm break though)
- this compares to a GAC-10 at 450 litres. The improved version
of the CGAC uses a finer mesh catalytic coal-based carbon specifically
surface activated to decompose mono-chloramine, releasing low
carbon fines and has short wet-out time. The CGAC shares the
same physical characteristics as the GAC-10, this version having
an improved pressure differential of 12psi from 20psi.
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TS-GAC |
- Chlorine and scale reduction combination
- 52°C
The TS-GAC shares the same physical characteristics as the
GAC and has 20% of the carbon replaced with FDA grade phosphate
crystals that reduce rust stains and scale deposits, protecting
water lines, fixtures, appliances and commercial equipment. Longitudinal
flow does not allow GAC style cartridges to be stacked or used
in housings with cartridge support posts.
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granular activated carbon - radial flow
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PC |
- High flow and copes with particulate
- 52°C
The PC range of carbon cartridges is designed to flow radially
(outside to inside) through granules of water-washed lignite
carbon with a large mesh size, creating very low pressure drops
throughout the cartridge life. With high-flow characteristics
and a 70 micron porous outer (10 micron inner), the PC cartridges
are ideally suited to applications where suspended particulate
matter is present that would ordinarily plug a GAC or carbon
block. Short contact time allows for an average 90% chlorine
and organic reduction over the life span of the cartridge, which
is lower than the GAC and carbon blocks yet adequate for many
applications.
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For more information, please contact Derwent Water
Services
Derwent Water Services - Cost-Effective Water Treatment
Solutions
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Plant Needs
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