Request for Quote
Request a Catalog
Download Literature
Subscribe to Product/Educational Updates
Call Us:1(973) 948-0226    Print/Download this pdf
You are here:  home > mahle filter assemblies > mahle industrial filters > filter elements > filter elements for fluid filters
Industrial Clamp
Drawing Downloads
Click here for more info:
Configurable
3D & 2D Drawings/Models

Behringer
Webinars
Click here for more info:
Behringer's Product Specific Webinars

Behringer
Interchange Elements
Click here for Behringer's Interchange Elements:

Filter Elements For Liquid Filters  Degree of filtration 2 µm up to 500 µm
Nominal size 5 up to 1800
Differential pressure resistant up to 210 bar (3045 psi)
1. Features
High performance elements for nearly all fluids
  • PS: new MAHLE Premium Select high performance disposal filter elements with innovativ design for hydraulic oils and lubricants, fuels, aqueous media and synthetic media
  • Sm-N: disposal deep filtration elements with highest degree of filtration and dirt holding capacity
  • Sm-x: standard disposal glass fibre filter elements for various applications
  • Mic: inexpensive disposable filter elements
  • Drg: cleanable surface filter element, made of wire mesh
  • KS-Mic: high efficient disposable depth filter elements for cooling emulsions
  • WS-Mic WS-PS and WS-Sm-x: Filter elements with additional water absorption ability
  • Designed for MAHLE filter housings, as alternative elements in the dimensions of other manufacturers and according to a customized specification
  • Complete product range according DIN 24550
  • Beta rated elements according to ISO 16889 multipass test
  • Elements with high differential pressure stability and dirt holding capacity
  • Worldwide distribution
  • 2. Preface
    Filter elements are the virtual part of a filter through which the filtration process is realised. For the different liquids and applications MAHLE developed different filter materials. Therefore a variety of elements are available which would fit into the same housing, but would suit different applications.
    3.1 Filter material PS and Sm-N
    Depth filters consisting of several layers of glass fibre (progressive design) to filter hydraulic oils and lubricants, flame resistant liquids, fuels and synthetic liquids.
    • PS is available in ratings of 5 mm (c), 7 mm (c), 10 mm (c), 15 mm (c) and 20 mm (c) according to ISO 16889 (3mm, 6 mm, 10 mm, 16 mm and 25 mm according to ISO 4572) with a very high dirt holding capacity and simultaneous very low flow resistance.
    • Sm-N 2 is available in ratings of 4 mm (c) according to ISO 16889 (2 mm according to ISO 4572) with an extremely high dirt holding capacity for very demanding requirements in regards to the filtration quality, for off-line filtration and for single-pass applications.
    Separation Grade Characteristics 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-x/Sm-N elements with max. Δp 10 bar
    Sm-N       2     ▀4(c)    ≥200
    PS            3     ▀5(c)    ≥200
    PS            6     ▀7(c)    ≥200
    PS          10     ▀10(c)   ≥200
    PS          16     ▀15(c)   ≥200
    PS          25     ▀20(c)   ≥200
    Values guaranteed up to
    10 bar differential pressure

    The filter element Sm-N2 is an element with very high dirt holding capacity and is preferred to be used in off-line filtration.

    In a hydraulic or lubrication system a filter has the task to reduce the contamination to the accepted cleanliness level and to keep it for as long as possible. For the identification of solid particles in industrial hydraulics it is common practice to count particles according to ISO 4406. Subsequently the achievable cleanliness classes of the Sm-x and Sm-N. These values mirror our longtime experience in designing hydraulic filters and could be considered as guide values.

    3.2 Filter Material Sm-x
    Deep filters with glasfibre filter material for all purposes. Filter performance, retention rates and the achievable cleaniness classes are fully corresponding to the new PS filter material.
    3.3 Filter material Mic
    Depth filters made of cellulose or glass fibre layers with a high dirt holding capacity and a low flow resistance. Degree of filtration 10 mm and 25 mm according to MAHLE norm. Use in hydraulic oil and lubricants filtration as suction filter as well as low cost filtration in plants with minor demands in regards to the filtrat quality.

    Separation Grade Characteristics Filter Performance Data

    y=beta-value
    x=particle size [µm]
    tested according to ISO 16889 (multipass test)

    Mic          10     ▀10(c)   ≥2
    Mic          25     ▀20(c)   ≥2

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

    3.4 Filter material Drg
    Surface filters made of stainless steel wire mesh with a very low flow resistance designed in the following weaves: plait, twill and linen. Degree of filtration 10 mm, 25 mm, 40 mm, 60 mm, 100 mm, 200 mm, 300 mm and 500 mm. For a wire mesh filter element the degree of filtration is determined by the largest diameter of a globular particle which would be able to pass the fabric. Wire mesh filter elements are used in hydraulic oil and lubricants filtration as suction or coarse filters, for high viscose fluids as well as safety filters for coolant filtration. Wire mesh elements possess a defined removal size as surface filter and a low dirt holding capacity as depth filter.

    3.5 Filter material KS-Mic
    Depth filter consisting of several, coordinated, binder-free polyester materials with a very high dirt holding capacity and low flow resistance. Degree of filtration: 25 mm according to MAHLE norm. Use as disposable filter in coolant filtration.

    Separation Grade Characteristics Filter Performance Data

    y=beta-value
    x=particle size [µm]
    tested according to ISO 16889 (multipass test)

    KS-Mic          25     ▀25(c)   ≥5

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

    3.6 Filter materials WS-Mic, WS-Sm-x and WS-Sm-N
    MAHLE WS-elements for water removal are available as water absorber elements WS-Mic 25 with a low filter efficiency for particles or in combination with the highly efficient Sm-N 2 and Sm-x 10 configuration. A super absorper will change its chemical structure while absorbing water and indicates the amount of absorbed free water by an increase of flow resistance. The free water will be absorbed until the saturation limit is reached. WS-elements are applicable for all common lubrication and hydraulic fluids. The filter property complies with the corresponding Mic-, Sm-x- and Sm-N 2 element. The flow resistance of a water-free liquid would be insignificantly higher.

    4. Quality assurance
    MAHLE filters and filter elements are produced according to the following international standards:
    5. Technical specifications
    Pleated filter elements
    Flow direction from outside to inside
    Corrosion protected, chrome VI free, end caps and support tube
    Berst pressure resistance up to 210 bar
    Filter material and filter area see table
    Temperature range of application: -10 ░C to +120 ░C
    Possible applications see description äFilter materialô chapter 3.1
    Standard sealings for DIN elements: NBR, other sealing materials available on request
    Elements with stainless steel parts available on request
    6.1 Type number key and order numbers filter elements for in-line filters
    6.2 Type number key and order numbers filter elements for DIN filters
    6.3 Filter elements 852 xxx series
    7. When should the filter element be replaced? 8. Possibilities of cleaning wire gauge elements
    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
    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 (Mic, KS-Mic, PS and Smx) cannot be cleaned .
    1. Ultrasonic cleaning
    Immerse contaminated filter element into the ultrasonic bath for approx. 90 ľ 120 minutes, then flush with clean solvent. Then carefully blow out filter element from the clean side in outward direction using compressed air. As solvent, cleaning gasoline etc. may be used.
    2. Manual cleaning
    Only for degree of filtration ≥ 40 µm
    1. Remove coarse external dirt with a brush or similar tool in a separate cleaning containerfilled with solvent such as cleaning gasoline.
    2. Put filter element into a clean liquid solvent (approx. 20 minutes).
    3. Flush filter element with liquid solvent from inside to outside.
    4. Blow out filter element from the clean side in outward direction using compressed air.
    With either method ascertain that no dirt can deposit on the inside (clean side) of the filterelement. Further it needs to be considered that the element will not damaged because of proper handling. An entire cleaning (100 %) cannot be achieved (especially at a grade of filtration ≤ 25 mm. The service life of the element will decrease continiously per cleaning!