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Micro-Screen Rotating Drum Filters


Micro-Screen Rotating Drum Filters

Micro-screen Rotating Drum Filters or “Drum Filters” are an alternative to sand filtration especially when excessive waste water is a concern. The filtering process of Drum Screen Filters is very efficient and reliable due to the overall design and operation. Drum Filters are designed with few moving parts to ensure a long life with low operating/maintenance costs.

Filtration Equipment


 
Drum Filter
Information

“Micro-screening” essentially captures particles on a screen fabric while allowing the water to pass through (water polishing). Consider Drum Filters as an alternative to sand filters, especially with mammal and bird bathing pool applications, where hair and feathers can wreak havoc on filter internals.

Micro-Screen Drum Filter Components

Micro-Screen Drum Filter Components:

  1. Inlet
  2. Outlet (not visible)
  3. Solids Outlet
  4. Rinse Water Connection
  5. Backwash Header Bar
  6. Drive Unit (not visible)
  7. Filter Panels
  8. Rubber Lip Sealing

Drum Filter Screen Panels

Filter Screen Panels simplify replacement or changing the micron porosity. The number of panels is dictated by the drum size. This facilitates maintenance and allows for easy adaptation to a variety of filtering needs.


Drum Screen Filter Diagram
    How Drum Filters Work
  1. The rotating drum is actually a frame with mounted
    filter panels. The filter panels use a polyester or stainless steel filter cloth that is of a specific micron porosity.
  2. Waterborne solid waste particles enter the Drum
    Filter from the inside of the rotating drum.
  3. Solid waste particles (brown arrows) (larger than the micron porosity rating of the filter screens) are captured on the filter screens.
  4. Water (blue arrows) passes through the filter screens.
  5. A float level switch or timer initiates filter screen rinse.
  6. The screen is rinsed and solid waste particles wash down into the waste trough where they collect and exit the filter.

    Micro-Screen Drum Filter Advantages:

  • Superior solid waste filtering as compared to sand filtration, especially when filtering animal hair and feathers.
  • Reduced waste water generated as compared to sand filtration.
  • Liquid-level or timer initiated intermittent pressure spray wash system cleans the filter screens automatically.
  • Filter screen panels are easily changed. The press ion woven polyester filter fabric is available in a variety of micron porosities.
  • Industrial grade design and construction. Available in either 316 stainless steel, 304 stainless steel or fiberglass.
  • Removable full cover.

Micro-Screen Drum Filter Specifications
Model No.
Approx. Flow Rate
Screen Opening
Float Initiated Rinse
High Pressure Rinse / PSI
Freshwater Rinse / GPM
No. of Filter Panels
Filter Area (Ft.2)
Drive Motor (Hp)
HDF 5011P 150 GPM 60µm Yes Yes / 100 Yes / 3.2 2 4.84 1 / 4
HDF 8011P 300 GPM 60µm Yes Yes / 100 Yes / 4.75 2 10.33 1 / 3
HDF 8021P 700 GPM 60µm Yes Yes / 100 Yes / 9.5 4 20.67 1 / 3
HDF 12021P 900 GPM 60µm Yes Yes / 100 Yes / 9.5 6 31.0 1 / 2
HDF 12031P 1,400 GPM 60µm Yes Yes / 100 Yes / 14.25 9 46.5 1 / 2

Rotating Drum Filter - Special Notes:

Micro-screens are designed for low head-pressure operation and require precise positioning (vertical) within the application (filter loop). Micro-screen filters typically operate with either a pump or are gravity-fed. This factor must be considered during the application’s design phase. The average backwash water volume used varies per model size.

If you have any questions regarding Micro-Screen Rotating Drum Filters and which model is best suited for your application please feel free to send us an e-mail here: Drum Filter Questions.


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