3-10 Microns Fiber Disc Filter

The Fiber Disc Filter presents a breakthrough design in the field of fiber filters. It combines excellent performance in the fine filtration spectrum of 3-10 microns, minimal maintenance, absence of chemicals and a systematic and efficient back washing system.

Our advanced proprietary design, comprised of a trapeze wound by layers of thread and an assembly of trapezes into round discs, allows us to achieve the best combination of operational efficiency, energy reduction and minimal environmental impact.

At a very competitive cost, the Fiber Disc Filter delivers more efficient filtration than media and sand filters, while using significantly less water during backwash.

The Fiber Disc Filter is an alternative to cartridge and bag filters due to its self-rinsing abilities and minimal maintenance. It eliminates labor and hassles, reduces expenses, and leaves no environmental damage caused by disposable filters.

Due to its better footprint and mechanical simplicity our Fiber Disc Filter is significantly less expensive than any other medium to high capacity fiber filter.

Benefits and Advantages of the Disc Fiber Filter

  • Consistent 93%-95% particle removal ratios at 3 microns
  • Extremely low initial differential pressure – less then 0.03 bar
  • Standard operating pressure up to 8 bar (high pressure systems available)
  • Flow rate ranges from 50 CM³/h to 500 CM³/h
  • Backwash automatically initiated by elapsed time or  differential pressure
  • High capacity filtration surface allows low frequency backwash demand
  • Higher filter area leading to smaller footprint than other fiber filters
  • Ability to adjust thread type to client’s special liquid characteristics: high chemical resistance across the pH range or acidic materials, broad temperature span, high concentration of hydrocarbons, etc.
  • Very attractive price ensuring fast ROI

 

HOW DOES THE FILTER WORK

Filtering stage: The Fiber Disc Filter is composed of thread wound trapeze units. 18 trapeze units join to form a round disc. The number of discs defines the volume of the filter.

While filtering, the contaminated water flows through the filter tank, across the threads that are wound around the discs, and into a central collecting pipe. The flow through the discs is evenly distributed. The water flows through the threads in micron size channels created by the spaces between the threads. The initial step of the filtration process occurs at the first contact of the water with the stretched upper threads. This layer is the first barrier to the dirt. Further filtration occurs as the water flows through the micron channels inside the many layers of threads. The structure of the threads, their designed surface area and the material’s winding characteristics (tension, gaps, number of layers, etc) enable the smallest suspended solids to be intercepted and adhere to the threads. The result is a remarkable, fine filtration.

 

Backwash stage: The Fiber Disc Filter activates the self-rinsing by either time intervals or differential pressure. The backwash mechanism functions by utilizing high pressure water jets that create turbulence and movement within the threads layers. The high pressure water jets from the washing nuzzle penetrate the winded fibers and hit the disc base. The water then bounces back through the fiber layers, collecting all the dirt on its way. The contaminated backflow water is finally drained at the bottom of the vessel. To guarantee an efficient wash, and an even distribution of water across the entire disc area; there is a combined movement of the nuzzle arm and the discs.The disc rotates in a variable speed, while the nuzzle arm moves in a straight direction back and forth.

Each backwash sequence takes about 8 minutes, with very low water consumption – about 1.5% of the filtration cycle overall water flow.