- Model AMF2-36K - Microfiber Filters

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Amiad's AMF2 Series consists of innovative self-cleaning microfiber water-filters for treatments as fine as 2 micron that provides cartridge filter performance without cartridge filter replacement. The AMF² filters support flow-rates of up to 320 m³/h (1410 US gpm), in filtration degrees of 20 to 2 micron.

The Filtering Process
The AMF² filters remove dirt particles as water flows through multi-layered microfiber cassettes (1). These are attached to collector pipes which allow the process water to flow from the filters' outlet (2). Dirt particles that accumulate on and in-between the microfiber layers create a pressure differential. At a preset pressure differential value or time interval, the control unit activates the self-cleaning cycle, described as follows:
 
The Self-Cleaning Process
The inlet (3) and outlet (4) valves close and the drain (5) valve opens. After the filter vessel empties, the booster pump (6) delivers pressurized water to the shuttle pipe (7) on which the flush nozzles are mounted (8). These nozzles straddle the cassettes and spray both sides of a cassette with high powered jet streams that penetrate the microfiber layers and dislodge the debris. When these jet streams hit the plastic cassette support, they reflect outward, dislodging the debris from the cassettes and out the drain. This process ensures 100% effective cleaning. The piston assembly shuttles the spray nozzles across a single row of cassettes on each stroke. When the nozzles reach the end of a row, the turn mechanism indexes the filter package to the next row of cassettes. The piston then shuttles in the opposite direction, cleaning the cassettes as the nozzles traverse them.After cleaning all 35 rows of cassettes, the filter is clean. The drain valve closes and the inlet valve re-opens, filling the filter vessel. After the vessel is full, a 'filter to waste' (9) valve opens. This eliminates any residual contaminant that may have entered the collector pipes during the flush process. Then, the 'filter to waste' valve closes, the outlet valve opens and the filter is back on-line.
Amiad's AMF² product-line consists of the following models:
  • AMF²-36K for up to 30 m³/h (132 US gpm)
  • AMF²-93K for up to 50 m³/h (220 US gpm)
  • AMF²-370K for up to 320 m³/h (1410 US gpm)

  • TSS, NTU & SDI reduction for potable and waste water applications
  • Effective removal of Giardia Cysts
  • Cartridge performance without cartridge replacement
  • Outperforms traditional sand media systems
  • Pre-filtration for R.O. desalination and other sub micron systems
  • Provide complete water treatment and filtration solutions for Municipalities
  • Environmentally friendly no chemical treatment required

General Data
Recommended flow rate* Up to 30 m³/h (132 US gpm)
Inlet/Outlet diameter 2” (50 mm)
Standard filtration degrees 2-3-7-10-20 micron
Min. working pressure 1 bar (15 psi) or lower
Please consult manufacturer
Max. working pressure 10 bar (145 psi)
Working temperature range 4-40°C (39-104°F)
Electrical Supply 3 phase, 220/380/440 VAC 50/60 Hz
Compressed Air Supply 6 – 8 bar / 87 – 116 psi
Weight (empty) 480 kg (1058 lb)

Flushing Data
Flushing Flow Rate 6 m³/h (26 US gpm)
Reject water volume per flush cycle 0.5 - 0.7 m³ (132 - 185 US gallon)
Flushing sequence time Approximately 10 minutes Including drainage and filling time
Exhaust valve 50 mm 2”
Flushing criteria Differential pressure, time intervals and manual operation

Screen Data
Filter area 35580 cm² (5515 in²)

Construction Materials*
Filter housing and covers Epoxy coated carbon steel
Cassette Polyester thread on Noryl® molded base
Cassette package PVC, St/St, PTFE
Pistons Brass, Bronze, HMWPE, St/St, Nylon, PTFE
Seals Nitrile Rubber (NBR)
Pressure hoses Rubber
Bolts, nuts, washers External Galvanized, Internal St/St
Pneumatic valves Cast Iron, EPDM, Brass, St/St
Solenoid valves Aluminum (pneumatic control of valves), Brass (hydraulic control of pistons)

Control and Electricity
Rated operation voltage 3 phase, 220/380/440 VAC 50/60 Hz
Control voltage 24 V AC/DC

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