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TAF Automatic Filters - Amiad

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Item # 3-9201-2151-3400

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TAF Automatic Filters - Amiad

Amiad Water Filter
Product No. Description Max.
Flow Rate
Max.
Pressure
Filtering
Surface Area
Filtering
Volume
Inlet-Outlet
Diameter
Wuight
(empty)
3-9201-2151-34002" Automatic Filter110 USgpm
25m³/h
120 psi72 in²
465 cm²
4.7 USgal
18 liters
2"
50mm
25.6 lb
11.6 kg
3-9251-2151-34002" Super Automatic Filter110 USgpm
25m³/h
120 psi110 in²
700cm²
6.6 USgal
25 liters
2"
50mm
24.3 lb
12.4 kg
3-9301-2151-34003" Automatic Filter220 USgpm
50m³/h
120 psi110 in²
700cm²
6.6 USgal
25 liters
3"
80mm
28.7 lb
13.0 kg

2" - 3" Automatic electric filters for flow rates up to 220 USgpm (50m³/h)

An innovative self-cleaning filter, constructed of high quality plastic; suitable for a large variety of applications.


Features:

  • For flow rates up to 220 USgpm (50m³/h)
  • Minimal water wasted during flush cycle. Less than 1%
  • Flushing according to pressure differential and/or according to time. Option for continuous flushing.
  • Unique drive mechanism.
  • Low power consumption. 
  • No interruption of downstream flow during flushing.
  • Filtration degrees from 500 to 10 micron.
  • Electronically monitored cleaning with flexible control options.
  • Applications: Water supply systems, cooling water, waste water; in: Plastic industry, mining, water treatment, turf irrigation, agriculture, etc.


How does the "TAF" filter work ?

The "TAF" is a sophisticated yet easy-to-operate automatic electric filter, with a self-cleaning mechanism driven by an electric motor. The filter is designed to work with various types of screens in filtration degrees from 500 to 10 micron, and is available in 2", and 3" inlet/outlet diameter.


Filtering process:

The water enters through the inlet pipe into the screen area and flows through the screen from inside out. The "filtration cake" accumulates on the screen surface and causes head loss to develop.


Self-cleaning process:

The TAF will start the self-cleaning process either when the pressure differential across the screen reaches a pre-set value or after a predetermined lapse of time.

The fine screen filter element is cleaned by the suction scanner whose nozzles spiral across the inner surface of the screen. The filtration cake is ”vacuumed” from the screen and expelled out the exhaust valve.

The scanner’s spiral motion is achieved by a drive unit mounted to a bi-directional continuous worm shaft. The exhaust valve is activated for the duration of the cleaning cycle by a 3-way solenoid.

Filtered water continues to flow downstream during the flush cycle, which takes approximately 16 seconds.


Control system:

The control system comprises a Pressure differential switch (PDS), solenoid valve and a flushing controller.

The PDS senses the pressure differential across the screen and when it reaches 0.5 bar (7 psi) it sends a signal to the electronic controller. The controller activates the motor and the solenoid valve for the timed duration of the flushing cycle.


Initiation of self-cleaning:

The filter will begin the self-cleaning process under any one of the following conditions:

  1. PDS - Pressure differential across the screen.
  2. Manually pressing the push button located in the controller box.
  3. Timed intervals set by controller DIP switches.


The filter is available with 2 different element sizes: 2" with 72 in² (465 cm²) or 2"-Super and 3" with 108 in² (700 cm²). The "super" feature allows longer intervals between cleaning cycles and is highly recommended for use with poor water quality.

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