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Automatic Valveless Gravity Filters (AVG)

Automatic Valveless Gravity (AVG) Filters

    Product Information

    An engineered system that meets your needs. Automatic controls save labour and provide a better filtration system without the need for valves, pumps, flow controllers or electricity. Backwashing on demand or by manual activation.

    The control module provides all hydraulic functions of backwash initiation and washing of the filter media.

    Features

    • Automatic operation, no valves nor backwash pump required
    • Backwashes automatically, or by manual initiation
    • The control model provides all hydraulic functions of the filter inlet, backwash initiation and the wash cycle
    • Automatic backwash when suspended matter removed by the filter bed causes pressure loss
    • Flow reverses automatically at the end of backwash. During the rinse cycle, the backwash tank refills and the filter returns to service
    • Raw water flow to the plant is not interrupted

     

    Operation

    • Whenever suspended matter removed by the filter bed causes pressure loss to reach a predetermined level, backwash starts automatically
    • Flow reverses automatically at end of backwash; during rinse cycle the backwash tank refills and the filter returns to service
    • Raw water flow to the plant is not interrupted

     

    Technical Specs
    Filtration rate: 2.5 L/sec/m2 – 9m3/hr/m2
    Backwash rate: 15 to 7 mm/sec (10 L/sec/m2 average)

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