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Mobile Filter Units  Pi 8100
Flow rates 27/32 and 55/66 l/min
1. Features
High performance filters for modern hydraulic systems
  • Mobile bypass filtration for hydraulic and lubricating systems
  • System and container filling
  • Pumping out of old oil
  • Transfer pumping of container contents
  • Reduces dirt loading of system filters on start-up and following repairs
  • Achievement of specified cleanliness classes using MAHLE Smx filter elements
  • Excellent contamination absorption performance using MAHLE Sm-N 2 filter elements
  • Easy to service
  • MAHLE low pressure filter Pi 150 housing with quick-release cover for fast element replacement
  • Oil collection tank/automatic bleeding
  • Automatic pump cut-off
  • Low operating noise
  • Robust feed pump with helical gearing and integrated bypass valve
  • Suitable for mineral oils, HFC and biodegradable oils
  • Good suction performance, also suitable for high viscosity products
  • Worldwide distribution
  • 2. Flow rate/pressure drop curve complete filter

    a = differential pressure-viscosity curve Pi 8102
    flow rate = 27 l/min
    y = differential pressure [bar]
    x = viscosity [mm2/s]

    Illustration shows initial Δp of complete filter (housing incl. element) of the mobile filter units.


    b = differential pressure-viscosity curve Pi 8103
    flow rate = 55 l/min
    y = differential pressure [bar]
    x = viscosity [mm2/s]

    Recommended initial Δp:
    max. 0.5 bar at bypass filtration
    max. 0.8 bar for filling or transfer by pump

    3. Separation grade characteristics 4. Filter performance data

    y=beta-value
    x=particle size [µm]

    determined by multipass tests (ISO 16889)
    calibration according to ISO 11171 (NIST)

    tested according to ISO 16889 (multipass test)
    Sm-N/Sm-x elements with max. Δp 10 bar

    Sm-N    2     4(c)   ≥200
    Sm-x    3      5(c)   ≥200
    Sm-x    6      7(c)   ≥200
    Sm-x    10   10(c)   ≥200
    Sm-x    25   20(c)   ≥200
    Values guaranteed up to
    10 bar differential pressure

    The filter element Sm-N 2 has a very high dirt load capacity and is very suitable for bypass filtration.

    5. Quality assurance
    MAHLE filters and filter elements are produced according to the following international standards:
    6. Wiring Diagram
    7. Order numbers

    8. Technical Specifications

    We draw attention to the fact that all values indicated are average values which do not always occur in specific cases of application. Our products are continually being further developed. Values, dimensions and weights can change as a result of this. Our specialized department will be pleased to offer you advice.

    We recommend to contact us concerning applications of our filters in areas governed by the EU Directive 94/9 EC /ATEX 95). The standard version can be used for liquids based on mineral oil (corresponding to the fluids in Group 2 of Directive 97/23 EC Article 9). If you consider to use other fluids please contact us for additional support.

    Subject to technical alteration without prior notice.