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Low Pressure Duplex Filter  Pi 2110
Nominal pressure 40 bar (570 psi), nominal size 630 and 1000
according DIN 24550
1. Features
High performance filters for modern hydraulic systems
  • Modular system
  • Compact design
  • Minimal pressure drop through optimal flow design
  • Visual/electrical/electronic maintenance indicator
  • Flanged connections
  • Quality filters, easy to service
  • Equipped with highly efficient glass fibre Sm-x filter elements
  • Beta rated elements according to ISO 16889 multipass test
  • Elements with high differential pressure stability and dirt holding capacity
  • Worldwide distribution
  • 2. Flow rate/pressure drop curve complete filter

    y = differential pressure Δp [bar]
    x = flow rate V [l/min]

    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)

    PS elements with PS vst elements with
    max. Δp 20 bar

    max. Δp 210 bar

    PS    3     5(c)    ≥200 PS vst    3     5(c)    ≥200
    PS    6     7(c)    ≥200 PS vst    6     7(c)    ≥200
    PS    10   10(c)   ≥200 PS vst    10   10(c)   ≥200
    PS    16   15(c)   ≥200 PS vst    16   15(c)   ≥200
    PS    25   20(c)   ≥200 PS vst    25   20(c)   ≥200
    Values guaranteed up to
    10 bar differential pressure
    Values guaranteed up to
    20 bar differential pressure
    5. Quality assurance
    MAHLE filters and filter elements are produced according to the following international standards:
    6. Symbols
    7. Order numbers

    8. Technical specifications
    Design: line mounting filter
    Nominal pressure: 40 bar (570 psi)
    Test pressure: 60 bar (850 psi)
    Temperature range: -10 C to +120 C
    (other temperature ranges on request)
    Bypass setting: Δp 3.5 bar 10 %
    Filter head material: GGG
    Filter housing material: St
    Filter cover material: GGG
    Sealing material: NBR
    Maintenance indicator setting: Δp 2.2 bar 0.3 bar
    Electrical data of maintenance indicator:
    Maximum voltage: 250 V AC/200 V DC
    Maximum current: 1 A
    Contact load: 70 W
    Type of protection: IP 65 in inserted and
    secured status
    Contact: normally open/closed
    Cable sleave: M20x1.5

    The switching function can be changed by turning the electric upper part by 180 (normally closed contact or normally open contact). The state on delivery is a normally closed contact. By inductivity in the direct current circuit the use of suitable protection circuit should be considered. Further maintenance indicator details and designs are available in the maintenance indicator data sheet.

    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 you 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 Goup 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.


    9. Dimensions
    10. Installation, operating and maintenance instructions
    10.1 Filter installation
    When installing the filter make sure that sufficient space is available to remove filter element and filter housing. The maintenance indicator must be visible.
    10.2 Connecting the electrical maintenance indicator The electrical indicator is connected via a 2-pole appliance plug according to DlN EN 175301-803 with poles marked 1 and 2. The electrical section can be inverted to change from normally open to normally closed position or vice versa.
    10.3 When should the filter element be replaced?
    1. Filters equipped with visual and electrical maintenance indicator: During cold starts, the indicator may give a warning signal. Press the red button of the visual indicator once again only after operating temperature has been reached. If the red button immediately pops up again and/or the electrical signal has not switched off after reaching operating temperature the filter element must be replaced after the end of the shift.
    2. Filters without maintenance indicator: The filter element should be replaced after the trial run or flushing of the system. Afterwards follow instructions of the manufacturer.
    3. Please always ensure that you have original MAHLE spare elements in stock: disposable elements (Sm-x) cannot be cleaned.
    10.4. Element replacement
    Note: The maintenance indicator monitors the filter side in operation, which is identified by the position of the switching lever catch. The change-over transfer valve must be switched prior filter servicing. Now the signal of the maintenance indicators cancelled and the red button can be repressed again.
    1. Operate and hold pressure equalizing lever located behind switching lever. Pull catch knob and swivel switching lever. Place through or drip pan underneath to collect leaving oil. Close pressure equalization valve.
    2.Loosen vent screw of the filter side not in use by 2-3 turns; max. until contact is made with the safety stop.
    3. Remove drain plug in housing bottom and drain oil.
    4. Unscrew filter cover counter-clockwise.
    5. Lift out filter element.
    6. Check seal on filter cover. We recommend replacement in any case.
    7. Make sure that the order number on the spare element corresponds to the order number of the filter name-plate. To ensure no contamination occurs during the exchange of the element first open the plastic bag and push the element over the spigot in the filter head. Now remove plastic bag.
    11. Spare parts list