Compact filters for diverse 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-MI2 is available in three different configurations. The »inlet filter«, without an external housing, is directly immersed in the liquid. The »inline filters« are designed to be installed downstream in the feed line, i.e. directly before the pump. The maintenance-friendly »T-design« 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 implement a sensor for filter monitoring. This allows to detect pending maintenance or cleaning of the filter as well as a closed supply line. In the »T-version« the sensor is directly adaptable, for straight filters it can be integrated by adding a separate mounting block. 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 316L or alloy C22 and FPM, FFPM or EPDM
• 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
• Wide configuration variety:
  different body shapes and body materials, filter fineness and sealing materials
• User-friendly and economical:
  filter elements can be cleaned or replaced

Functional principle

Characteristics

Dimensions

Accessories

• Electrical heating module
• Filter monitoring
• Mounting bracket (for Inline filter in T-shape)

Technical data

• Type

  Inlet filter
  Inline filter (straight, T-shape)

• Liquid temperature range

  Inlet filter: -20 ... +140 °C (-200 ... +275 °C)
  [-4 ... +284 °F (-328 ... +527 °F)] **
  Inline filter: -10 ... +140 °C (-50 ... +275 °C)
  [+14 ... +284 °F (-58 ... +527 °F)] *

• Differential pressure range

  Inlet filter: -
  Inline filter: max. 20 bar [290 psi]

• Operating pressure

  Inlet filter: -
  Inline filter: max. 200 bar [2900 psi]

• Seal materials

  Inlet filter: -
  Inline filter: FPM, FFPM, EPDM

• Materials

  Inlet filter: stainless steel 316L; optional: alloy C22 with adapter (PEEK or PVDF)
  Inline filter (straight): stainless steel 316L
  Inline filter (T-shape): stainless steel 316L; optional: alloy C22

• Internal volume

  Inlet filter: -
  Inline filter (straight): 20 ml [1.22 in³]
  Inline filter (T-shape): 26 - 30 ml [1.59 - 1.83 in³] **

• Dimensions (Ø x H)

  Inlet filter: Ø 20 x 63 ... 68.5 mm [Ø 0.787 x2.48 ... 2.697 in] **
  Inline filter (straight): Ø 32 x 86 mm [Ø 1.26 x 3.386 in]
  Inline filter (T-shape): Ø 44 x 91 mm [Ø 1.732 x 3.56 in] (Servicing height for filter element exchange 95 mm [3.74 in])

• Fluid connection

  1/8" NPT internal thread

• Filter fineness

  10 µm; optional: 3 µm, 25 µm, 40 µm, 100 µm **

• Filter area

  61 - 72 cm² [9.5 - 11.2 in²] ***

• Weight

  Inlet filter: approx. 60 g [2.16 oz]
  Inline filter (straight): approx. 420 g [14.82 oz]
  Inline filter (T-shape): approx. 560 - 610 g [19.75 - 21.52 oz] **

• Remarks

  * depending on seal material
  ** depending on material
  *** depending on filter fabric

• 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. 
  This document is subject to change without notice.

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Downloads

• Product information Filter series F-MI2 FR DE EN 627.25 KB
• Quick Guide Inline Filter F-MI2 FR DE EN 92.52 KB
• Quick Guide Inline Filter F-MI2-T FR DE EN 72.44 KB
• Cleaning recommendation filter elements and inlet filters of F-MI filter series DE EN 387.13 KB

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