Pressurized AFM Filters (Activated Filter Media)

Pressurized AFM Filters (Activated Filter Media)
Pressurized AFM Filters for Aquariums


Sand Filters Schematics
Sand Filters Schematics

MAT AFM FILTERS are rapid, pressurized multilayer filters filled in with Activated Glass Filter Media (AFM) instead of sand to double the process performance. The AFM media offers 300 times more surface area than the sand media, is electrostatically charged to absorb organic substances and small particles and finally the metal oxide catalysts located on its surface make the AFM self-sterilizing, as well. The developed filtration speed varies between 20 – 25 m/h at a pressure rate of 2.5 bar. The specific filter configuration offers extra resistance to bio-fouling, to bio-coagulation and does not permit any unfiltered water to escape due to transient wormhole water channeling.

MAT AFM FILTERS may be backwashed by reversing the water delivery to flow from the lower to the higher media layers collecting and discharging the deposited particulate matter to the effluent waste line. The MAT AFM FILTERS vessels are made from Bobbin Wound FRP or laminated FRP vessels, venilester coated offering optimum ozone osmosis protection, pneumatic or motor actuated manifold, manometers and air pressure relief valves.


AFM – Activated, bio Resistant Filter Media from Glass

AFM is an Activated Filter Media manufactured from green glass to replace sand in all types of sand filters and all types of water filtration applications.The amorphous aluminosilicate glass proceeds through a patented activation process to increase the surface area by 300 times over sand. The high surface nano – structure area is negatively charged to selectively adsorb organics, priority substances and small particles. The surface also has metal oxide catalysts that give a high redox potential to make AFM self-sterilizing which prevents bacteria mud-balling, coagulation and worm-hole channeling of unfiltered water through the filter bed.

Activated Filter Media Activated Filter Media Activated Filter Media


MAT AFM FILTERS present the solution for optimal and total water filtration at lower power consumption rates when compared to traditional sand filters. The media used allow ease of operation and although a higher initial investment, the ROI is fast.

MAT AFM FILTERS are applicable to Aquariums, Aquaculture Facilities, generally to all Wastewater Treatment Applications.


The waste water is dispersed evenly over the Activated Filter Media by diffusers which are located on the upper part of the vessel. As the water permeates down through the media layers, the particulate material carried in the water is deposited to the Activated Filter Media (AFM). The AFM is manufactured from amorphous aluminosilicate glass, subjected to form a large nanostructure effective area. The metal oxide catalysts located on the media surface give a high redox potential making AFM media self sterilizing, against undesirable microorganisms.

Performance of Sand & AFM Filters
Performance of Sand & AFM Filters

AFM (Activated Filter Media) Production

MAT LSS uses DRYDEN AFM®: Activated Filter Media resulting among others in 30% – 80% improvement than regular sand filter performance by replacing the sand with AFM.

AFM® Production Film


  • More than doubled performance over a conventional sand filtration system
  • Higher effective filtration surface than sand
  • Presents Biodynamic Stability
  • Does not permit untreated water escape
  • Substantially lower chlorine oxidation demand
  • Around 50% lower backwash water need
  • AFM media is never changed or replaced
  • AFM is a Self-Sterilizing Media
  • No bacteria bio-fouling
  • No bio-coagulation
  • AFM FILTERS optionally, coated for extra ozone osmosis protection, pneumatic or motor actuated manifold, manometers and air relief valves.
  • Resistive and durable structure
  • Fast ROI R-134a, environmentally friendly gas
  • Small footprint
  • Automated, smart control of operation
  • Oil free compressor elongates the Air Dryer
  • Oxygen concentrator Lifetime
  • Durable robust design excellent resistance to harsh environment
  • CE Certification
  • No filter clog
  • No need of periodic backwashing
  • No problems due to sludge bulking
  • Resistive and durable structure
  • Low head pressure loss
  • Reduced sludge production
  • No need of periodic backwashing
  • No sludge bulking
  • Complete organic load removal
  • Compact Unit with increased treating process capacity

Pressurized AFM Filters (Activated Filter Media) - SPECIFICATIONS

Pressurized Media Filter TankBody Diameter (mm)Design Pressure (kg/cm²)Media DepthFiltration Flowrate (m³/h)Filtration Speed (m³/h/m²)Filtration Area (m²)Connection Flanged/UnionConnection Size (mm)Construction Type (Horizontal/Vertical / Stacked Dual Design)Total AFM Media Capacity (Kg)Total AFM Media Capacity (Kg)Height (mm)Sight GlassOptional Design Pressure (kg/cm²)Nozzle PlateAir Backwash ConnectionOzone Protection
FT500500314 /5/620/25/300.19UNION50VERTICAL2852371880OPTION4.5OPTIONonly with nozzle plateOPTION
FT600600317/8/1020/25/300.33UNION50VERTICAL4954111880OPTION4.5OPTIONonly with nozzle plateOPTION
FT8008003110 /12/1520/25/300.5FLANGED63VERTICAL7506231950OPTION4.5OPTIONonly with nozzle plateOPTION
FT100010003117/21/2520/25/300.86FLANGED75VERTICAL129010711900OPTION4.5OPTIONonly with nozzle plateOPTION
FT120012003122/27/3320/25/301.13FLANGED90VERTICAL169514071950OPTION4.5OPTIONonly with nozzle plateOPTION
FT140014003130 /38/4620/25/301.54FLANGED110VERTICAL231019171950OPTION4.5OPTIONonly with nozzle plateOPTION
FT160016003140/50/6020/25/302.01FLANGED140VERTICAL301525022000OPTION4.5OPTIONonly with nozzle plateOPTION
FT180018003150/63/7620/25/302.54FLANGED140VERTICAL381031622050OPTION4.5OPTIONonly with nozzle plateOPTION
FT200020003162/78/9420/25/303.14FLANGED160VERTICAL471039092100OPTION4.5OPTIONonly with nozzle plateOPTION
FT220022003176/95/11420/25/303.8FLANGED160VERTICAL570047312200OPTION4.5OPTIONonly with nozzle plateOPTION
FT240024003186/108/13020/25/304.34FLANGED160VERTICAL651054032250OPTION4.5OPTIONonly with nozzle plateOPTION
FTH25002000x2500(L)31.282/102/12320/25/304.1FLANGED160HORIZONTAL73806125~2150OPTION4.5OPTIONonly with nozzle plateOPTION
FTH30002000x3000(L)31.2100/125/15020/25/305FLANGED160HORIZONTAL90007470~2150OPTION4.5OPTIONonly with nozzle plateOPTION
FTH40002000x4000(L)31.2140/170/21020/25/307FLANGED225HORIZONTAL1260010458~2150OPTION4.5OPTIONonly with nozzle plateOPTION
FTH5000DS2000x5000(L)31.2177/221/26520/25/308.8FLANGED225HORIZONTAL1584013147~2150OPTION4.5OPTIONonly with nozzle plateOPTION
FTH2500DS2000x2500(L)X231.2(82/102/123) X 220/25/304.1 X 2FLANGED2 X 140HORIZONTAL STACKED DUAL DESIGN1530012699~4300OPTION4.5OPTIONonly with nozzle plateOPTION
FTH3000DS2000x3000(L)X231.2(100/125/150) X 220/25/305 X 2FLANGED2 X 160HORIZONTAL STACKED DUAL DESIGN1800014940~4300OPTION4.5OPTIONonly with nozzle plateOPTION
FTH4000DS2000x4000(L)X231.2(140/170/210) X 220/25/307 X 2FLANGED2 X 200HORIZONTAL STACKED DUAL DESIGN2520020916~4300OPTION4.5OPTIONonly with nozzle plateOPTION
FTH5000DS2000x5000(L)X231.2(177/221/265) X 220/25/308.8 X 2FLANGED2 X 225HORIZONTAL STACKED DUAL DESIGN3168026294~4300OPTION4.5OPTIONonly with nozzle plateOPTION

AFM Filter Details

  • Washed and sieved sand should be used
  • Collector with laterals
  • Filtration velocity 50 m³/h/m²
  • Test pressure 4 BAR
  • Sight Glass is included or not included
  • Manometer and air valve are included
  • Internal pipe and fittings in U-PVC
  • Gaskets in EPDM and all screw fittings in stainless steel

Request a Quote for: Pressurized AFM Filters (Activated Filter Media)

, Example:20