Aug 7, 2012 | News

Forsta FRP Self-cleaning water filters tackle harsh sea water environment

  The 180 Fiberglass Reinforced Plastic (FRP) Series filters offer an ideal solution for corrosion resistance in brackish, brine and seawater filtration applications. All wetted components of the FRP Series self-cleaning filters are constructed from seawater- resistant plastic or other high alloy materials.


        A3-180FRP with 25 micron screen for sea water filtration

   Forsta Filters was asked to provide a solution for RO pre-filtration for sea water with high chloride content and high water temperature.

   With the FRP filter line, Forsta’s applications engineers were able to specify a quick solution that would hold up very well in these harsh environments, where other filters have failed.

   The customer’s idea was to install a self-cleaning water filter to replace the expensive and labor intensive cartridge filters. Forsta automatic backwash filter model A3-180FRP filter is flowing 80-100gpm through 25 micron screen. The filter uses less than 5 gallons of water per 12 second backwash, without disrupting the main flow. This solution saves the customer from spending time and money continuously replacing cartridges.

Filter Characteristics:

  • Flow Rate: 15 – 4,500 gpm
  • Flush cycle duration: 6 – 20 seconds
  • Flush valve size: single 1″ or a single 2″
  • Screen opening: 5µ – 4000µ
  • Temperature: 150ºF
  • Flush Volume: 4 – 50 gallons per backwash
  • Working pressure: 35 – 150 psi