Filters for industrial applications

Filters are used in fluidic systems to protect sensitive components from damage due to contamination and particles. For the safe operation of micro annular gear pumps and their precision-machined rotors, the use of a 10 µm meshed filter is recommended. With compact filter units made out of corrosion-resistant materials, with high filtration performance and different mesh sizes, HNP Mikrosysteme offers suitable filter solutions for all of its pump series.

The filter series F-MI4 is available in two different configurations. The »inlet filter«, without an external housing, is directly immersed in the liquid. The »inline filter« in the maintenance-friendly »T-design« is designed to be installed downstream in the feed line, i.e. directly before the pump and offers the advantage of changing the filter element without having to uninstall the filter from the feed line, and the option to open the bottom for releasing medium or emptying the filter. Also it is possible to install a maintenance indicator. This indicates optically and electrically the maintenance/cleaning of the filter element. To avoid sedimentation and cross-contamination the filters have small dead volumes and are manufactured with smooth surfaces (Ra 0.8).

Advantages

  • Corrosion-resistant materials
    stainless steel, FFPM
  • Metal filter elements
    without solder or adhesives
  • High filtration performance and small size
    pleated filter elements for low pressure drops even at high flow rates and viscosities
  • Configuration variety
    different mesh sizes and sealing materials
  • User-friendly and economical
    filter elements can be cleaned or replaced

Principle

Inlet filter F-MI4

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Inline filter F-MI4-T

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Inline filter F-MI4-T with maintenance indicator

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Technical data

  • Type
    Inlet filter, Inline filter (T-shape)
  • Liquid temperature range
    Inlet filter: -200 ... +275 °C Inline filter: -10 ... +140 °C (-40 ... +275 °C *)
  • Differential pressure range
    Inlet filter: - Inline filter: max. 20 bar
  • Operating pressure
    Inlet filter: - Inline filter: max. 40 bar
  • Seal materials
    Inlet filter: - Inline filter: FPM, FFPM, EPDM
  • Materials
    stainless steel
  • Internal volume
    Inlet filter: - Inline filter: 200 ml
  • Measurements (ø x H)
    Inlet filter: Ø 44 x 106 mm Inline filter: Ø 80 x 173 mm
  • Fluid connection
    cylindrical internal thread G 1/2"
  • Mesh size
    10 µm; optional: 25 µm
  • Filter area
    400 cm²
  • Remarks
    * depending on seal material
  • Notice
    Even if single parameters are within the indicated performance range of technical data, certain parameter combinations may not be achievable. Single parameters may exceed their indicated performance range under adequate circumstances. For detailed evaluation please contact HNP Mikrosysteme. Actual performance may vary. Specifications are subject to change without notice. 

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