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SF Side-Stream Filters
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Herco Wassertechnik GmbH
Neckar, Germany
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A side-stream filter for cooling circuits, the SF sand filter with Siata primary control valve and SFE controller is used to clear dirt particles from open cooling systems. This automatic single filter unit uses raw water for time-controlled backwashing.  The unit and feed pump are installed on a plastic Euro pallet and are prepared for connection. It is possible to perform differential pressure controlled backwashing and optional backwashing with filtrate.

Controller Siata / CFE
Filter medium quartz gravel 1 - 2 mm
Support medium quartz gravel 3 - 5 mm
Filter velocity adjustable
Backwash velocity adjustable
Backwash time 10 min
Operating pressure 0.1 – 6.0 bar
Operating temperature 5 – 35 °C
Pressure fluctuation ± 0.5 bar
Conditions of use The filters are designed for a pressureless filtrate discharge. If filtration is performed in a closed circuit, a backflow preventer must be provided on site in the filtrate line. Particle-free tap water or control air with a pressure of 3 - 4 bar must be used as the control medium

Utilization of SF Side-Stream Filters

  1. Side-stream filter for cooling circuits that are open
  2. If the maximum allowable flow pressure is not exceeded, it can be utilized in the cooling circuit main flow.

Advantages of SF Side-Stream Filters
  1. Because of the integrated feed pump, cooling water circuit operation is independent.
  2. Excellent particle size dispersion in quartz gravel contributes to high separation efficiency.
  3. Because the plastic is ready to attach, installation is simple. Pallet Europe





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