FILTREX ACB® The best performing filter
according to IMO requirements
NO COMPETITION No other filter on the market is able to match or even come close to the performance of the ACB®
filter for operation with high TSS, reliability, filtration and backwashing efficiency, durability, easy
operation and maintenance. Since 1982 FILTREX has installed worldwide thousands of filters with
the same operating principle.
NO WEAKNESSES The filter operates continuously, with a precise filtration degree (down to 6 μm). The armored filter
element is made of stainless steel and is able to withstand high differential pressures without pro-
blems. The filter body and internal parts are built entirely of bronze-aluminum alloy ASTM B148
C95800 with a strict quality control system, approved by all major classification organizations.
MANY ADVANTAGES • Ability to operate with high TSS
• Compact dimensions in both height and footprint, even in the presence of the backwashing
pump, that is directly connected to the filter.
• The bronze aluminum construction guarantees a high durability, even with improper maintenance.
• No need for painting, which may get easily damaged.
• Simple: made of a few elements for easy, fast and accurate maintenance.
• Reduced flow of backwash.
• High regeneration capacity of the filter element, in just a few seconds.
• Long service life of the filter element.
• Great filtration efficiency (down to 6 μm).
• Completely manufactured by Filtrex in the Milano (Italy) factory.
• Large stock available.
• New application of an established technology with proven experience.
• IMO approved manual.
FILTREX ACB® The protector of Disinfection Systems
The comparative analysis carried out by approved certifying bodies, on samples collected during the IMO certification in di-
verse oceans, with varying degrees of filtration (in addition to the traditional 40 μm) demonstrated the high capacity of the
ACB® filter to remove zooplankton, with an efficiency increase of 85%, from 40 µm (Average Zooplankton. inds./m3 582) to
20 µm (Average Zooplankton. inds./m3 87).
FILTREX ACB® Sizing
m3/h (±5%) Backwash Footprint dimensions Installed
(without backwashing pump) Volume Power (kW) Weight
Size ND @ Δp ≤ 0.1 bar flow
(lt) (kg)
40 µm (lt/sec) mxm m2 filter pump
902 50 25 1,70 0,36 0,36 0,13 4 0,12 1,10 61
903 65 35 2,15 0,36 0,36 0,13 4 0,12 1,10 62
904 80 55 2,66 0,36 0,36 0,13 10 0,12 1,10 73
906 100 87 4,09 0,36 0,36 0,13 12 0,12 1,10 104
910 150 135 6,82 0,45 0,45 0,20 27 0,12 1,50 164
915 150 190 9,55 0,50 0,50 0,25 37 0,12 2,20 198
935 200 255 9,55 0,55 0,55 0,30 46 0,18 2,20 232
945 200 340 12,82 0,55 0,55 0,30 75 0,18 3,00 330
955 250 515 12,82 0,70 0,70 0,49 140 0,25 3,00 440
985 300 770 19,22 0,80 0,80 0,64 210 0,37 4,00 653
999 350 1040 25,95 0,85 0,85 0,72 320 0,37 5,50 842
9100 400 1500 35,00 0,85 0,85 0,72 500 0,37 9,20 1020
9120 500 2100 35,00 1,00 1,00 1,00 890 0,75 9,20 1600
9200 600 3000 35,00 1,30 1,30 1,69 1700 0,75 9,20 2400
FILTREX ACB® Choice of the Configuration
Depending on the operational requirements, the ACB® filter can also be supplied with the following
accessories:
• Electric panel
• Backwash pump
• Bronze aluminium fittings for filter by-pass
• Automatic valves for venting, draining and refilling.
FILTREX ACB® Technical Informations
Application Ship ballast water treatment units, fresh, brackish and sea water
Type of filter Automatic backwashing
Filtration Continuous
Cleaning cycle By differential pressure and/or timer
Cleaning system Backwash by reverse flow, sector by sector
Cleaning fluid Same filtered fluid
Power supply Electric and pneumatic
Nominal Pressure From 2 to 10 bar
Inlet/Outlet connections From ND 50 to ND 600, NP 10
Nominal Temperature 60 deg C
Material Bronze-Aluminium alloy ASTM B148 C95800
Building tolerances EN 226768-1 class V
Gaskets Buna
Type of filtering element Armored pleated element
Filtering element material Stainless Steel AISI 316L
Filtration degree Down to 6 µm
Certification ATEX/IECEx
FILTREX ACB® Operation
PHASE 1 - FILTRATION
Δp < Δp set
Differential pressure gauge ! in "clean" condition
Electric motor " in “off” position
Backwashing shaft # “not rotating”
Backwashing valve $ “closed”
1 - FILTRATION: The fluid enters from !, and flows through
the sectors of the filter element % (inside to outside filtra-
tion). The filtered fluid is conveyed into the chamber " and
exits from #.
During this phase, the filter operates as a static filter, and
the cleaning of the filter element is
not active. As the impurities accu-
mulate in the filter element sec-
tors, the differential pressure Δp
indicated by the pressure gauge
! gradually increases until it rea-
ches the set value, starting phase
2 (cleaning during filtration).
PHASE 2 - FILTRATION and CLEANING
Δp ≥ Δp set
Differential pressure gauge ! reaches the set value
Electric motor " in “on” position
Backwashing shaft # “rotating”
Backwash valve $ “open”
1 - FILTRATION: The filtration is carried on by the sectors of
the filter element (filtration from inside to outside).
2 - CLEANING THE FILTER DURING FILTRATION: While all
sectors of the filter element ensure normal filtration, the sector
in front of the backwashing nozzle is cleaned by the reverse
flow drawn from the filtered fluid chamber " (outside to inside
backwash). The impurities are transported by the backwa-
shing fluid (filtered water), through the chamber $ and the
duct &, before leaving from %.
At the end of the backwashing cy-
cle, the electric motor " stops and
the backwash valve $ closes, thus
bringing the filter back to the Phase
1 (static filtration).
FILTREX ACB®
ACB® filters have been tested and certified by
the leading certifying organizations. Thanks to
its small dimensions the automatic filter ACB®
may be installed in tight spaces, on all new and
existing ships
Filter ACB-955 - tested at DHI, Denmark. Filter ACB-9100 on test bench: Flowrates up to 4.200 m³/h
Very small footprint ACB filters in operation
High production capacity Short lead time
FILTREX a worldwide organization
Filtrex s.r.l. with its headquarters and state of the art manufacturing
facilities in Milano, Italy provides filtration solutions and technical
services to many industries such as hydrocarbon, chemical, envi-
ronment protection, power generation, water treatment, Navy and
marine transport. Filtrex operates from its headquartes in Italy and
through worldwide branches, and has received prestigious certifications
for quality and standards of engineering and manufacturing.
Filtrex provides its customers with a comprehensive scope of
work, services and supply, preparing the engineering design spe-
cifications and P&IDʼs, purchasing equipment and materials, fabri-
cating and assembling the filters into module(s) in its fabrication
shop, furnishing data books and operating manuals, and providing
technical services for inspection, installation, commissioning,
start up and after start up.
Filtrex Corporate Headquartes - Milano (Italy)
Filtrex Manufacturing Unit #4 - Vignate (Italy)
ACB® is only one of the comprehensive range of filters manufactured by FILTREX.
Please contact us for details and documentation
FILTREX s.r.l.
CORPORATE HEADQUARTERS
Via R. Rubattino 94/B - 20134 Milano (ITALY) -
tel: +39 027 533 841- fax: +39 027 531 383 - www.filtrex.it - info@filtrex.it
NORTH AMERICA SOUTH AMERICA INDIA CHINA J A PA N
FILTREX USA LLC FILTREX de VENEZUELA C.A. FILTREX systems INDIA Pvt. Ltd. FILTREX CHINA LLC. FILTREX JAPAN Co. Ltd
Virginia Beach, VA23455 8050 Puerto Ordaz - Estado Bolivar Mumbai 400 072, Shanghai 200135, Kobe Chuo-ku, Hyogo 651-0083
USA VENEZUELA INDIA P.R. CHINA JAPAN
Agents worldwide
T10.16.GB
For details please contact our headquarters or visit www.filtrex.it
Certified
Quality:
ISO 9001 - ISO 14001 AD-HP0 NATIONAL BOARD U-STAMP NATO AQAP-110 U.S. NAVY
