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Standard flange 30 mm

Standard flange 30 mm

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Angle section frame 35 mm

Angle section frame 35 × 35 × 3 mm

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Aerodynamically optimised splitter frame

Aerodynamically optimised splitter frame

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Tested to VDI 6022

Tested to VDI 6022

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VDI6022_gs_01ai.png

XS 

Splitter sound attenuator with high insertion loss, even in the high-frequency range

Splitter sound attenuator, basically a duct section with integral splitters (type XK), for ventilation and air conditioning systems

  • Attenuation effect due to absorption
  • Energy efficient due to aerodynamically formed frame
    (bullnose radius 20 mm)
  • Sound absorbing material is biosoluble and hence hygienically safe
  • Sound absorbing material faced with glass fibre fabric as a protection against erosion due to airflow velocities up to 20 m/s
  • The sound absorbing material is non-combustible, to EN 13501, fire rating class A1
  • Leakage class C and pressure class 2 according to EN 15727
  • For use in areas with potentially explosive atmospheres (according to EC Directive 2014/34/EU (ATEX)), zones 1, 2, and zones 21 and 22 (outside) according to EC Directive 1999/92/EC
  • Operating temperature up to 100 °C, with expanded metal (variant L) up to 300 °C for a limited period of time

 

Optional equipment and accessories


  • Expanded metal as an additional mechanical protection for the sound absorbing material
  • Stainless steel variant A2 (1.4301), with optional perforated metal facing as an additional protection for the sound absorbing material
  • Other stainless steel and aluminium variants as well as PUR coating upon request

General Information

Application

  • Splitter sound attenuators used for the reduction of fan noise and air-regenerated noise in ventilation and air conditioning systems





  • Attenuation effect due to absorption

  • Broadband attenuation even in the high frequency range





  • For use in areas with potentially explosive atmospheres (EC Directive 2014/34/EU (ATEX)), zones 1, 2, 21 and 22 (outside) according to Directive 1999/92/EC



Special characteristics

  • Increased insertion loss even in the high-frequency range




  • Leakage class C and pressure class 2 according to EN 15727




  • Energy savings due to aerodynamically formed splitter frame
    • Up to 30 % lower differential pressure
  • Hygiene tested and compliant with VDI 6022
  • Multi-section construction available for large dimensions



Nominal sizes

  • Width B: 200, 400, 600, 800, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400 mm
    • Intermediate sizes: in increments of 1 mm
      • Splitter thickness 100 mm: 150 – 2399 mm
      • Splitter thickness 200 mm: 250 – 2399 mm
      • Splitter thickness 230 mm: 288 – 2399 mm
      • Splitter thickness 300 mm: 375 – 2399 mm
    • Sizes from 2401 – 4800 mm are available with the width subdivided in increments of 1 mm
      • Even no. of splitters: centre division
      • Odd no. of splitters: off-centre division


  • Height H: 300, 400, 500, 600, 700, 800, 900, 1000, 1100, 1200, 1300, 1400, 1500, 1600, 1700, 1800 mm
    • Intermediate sizes 150 – 1799 mm in increments of 1 mm
    • Sizes from 1801 – 3600 mm are available with the height subdivided in increments of 1 mm
      • Centre division
  • Length L: 500, 750, 1000, 1250, 1500 mm
    • Intermediate sizes 501 – 1499 mm in increments of 1 mm
  • Sizes from 1501 – 3000 mm are available with the length subdivided in increments of 1 mm
    • Part L1: 1000, 1250, 1500 mm
    • Part L2: at least 501 mm and ≤ L1, in increments of 1 mm
  • Width and/or height subdivided if B + H > 4200 mm
  • Airway width S
    • Minimum: splitter thickness T × 0.25, but not < 40 mm
    • Maximum: splitter thickness T × 2


Variants

  • XS with splitter type XK
    • Splitter thickness 100 mm
    • Splitter thickness 200 mm
    • Splitter thickness 230 mm
    • Splitter thickness 300 mm



Construction



Duct

  • No entry: with duct
  • OL: without duct (set of XK splitters only)


Splitter surface



  • F: Glass fibre fabric
  • L: glass fibre fabric faced with expanded metal as an additional mechanical protection for the sound absorbing material
    • Stainless steel construction with perforated metal facing


Materials and surfaces



  • No entry: galvanised steel 1.0917
  • A2: stainless steel 1.4301
  • P1: splitters powder-coated RAL 7001, silver grey


Duct connection



  • No entry: none (set of splitters only)
  • P: flange 30 mm, galvanised or stainless steel
  • W: angle section frame 35 × 35 × 3 mm, galvanised
  • T: flange 20 mm, galvanised


Matching frame



  • No entry: none
  • G: matching frame (only for angle section frame W)


Parts and characteristics

  • Duct
    • Leakage class C and pressure class 2 according to EN 15727
    • Various duct connections available
  • Matching frame
    • Angle section frame with the same pattern as the requested sound attenuator
    • For installation onto a duct (duct by others)




      • Aerodynamically formed frame
        • Covers the edges of the sound absorbing material
        • Reduces the pressure loss
        • Helps to optimise the airflow, hence reducing the air-regenerated noise
        • Increased rigidity due to special profile



      Construction features

      • Bent duct with grooves for increased rigidity
      • Sound attenuators with angle section frame, width or height subdivided
        • Galvanised construction only




      • Aerodynamically formed splitter frame (bullnose radius 20 mm) that helps to reduce turbulence on both the upstream and downstream sides; frame with grooves for increased rigidity
        • Frame edges with bullnose for increased rigidity
      • Operating temperature up to 100 °C; variant L up to 300 °C for 8h max.



      Material and surfaces

      • Duct, flange in galvanised sheet steel 1.0917 or stainless steel 1.4301
      • Angle section frame in galvanised L steel S235JRC2




      • Splitter frame and centre mullion made of galvanised sheet steel 1.0917 or stainless steel 1.4301
        • Expanded metal facing made of galvanised steel 1.0917
        • Perforated metal facing made of stainless steel 1.4301
        • Absorption material is mineral wool
          • To EN 13501, fire rating class A1, non-combustible
          • RAL quality mark RAL-GZ 388
          • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
          • Faced with glass fibre fabric as a protection against erosion from airflow velocities of up to 20 m/s
          • Inert to fungal and bacterial growth according to EN 846



      Standards and guidelines

      • Insertion loss and sound power level of air-regenerated noise tested to ISO 7235
      • Meets the hygiene requirements of VDI 6022, VDI 3803 Part 1 and DIN 1946 Part 4
      • EC Directive 2014/34/EC (ATEX): Equipment and protective systems intended for use in areas with potentially explosive atmospheres
      • EC Directive 1999/92/EC (ATEX): Improvement of the safety and health protection of workers potentially at risk from explosive atmospheres




      • Leakage class and pressure class according to EN 15727



      Maintenance

      • Low-maintenance as construction and materials are not subject to wear




      • Regular cleaning intervals according to VDI6022


    Technical information

    Function, Technical data, Specification text, Order code

    • Function
    • TECHNICAL DATA
    • SPECIFICATION TEXT
    • ORDER CODE

    Splitter sound attenuators type XS contain splitters type XK. The attenuation effect of the XK splitters is due to absorption. The splitters have a mineral wool infill as sound absorbing material.


    Splitter thickness100, 200, 230, 300 mm
    Nominal sizes (B × H × L)Type XS 100: 150 × 150 × 500 mm – 2400 × 1800 × 1500 mm
    Type XS 200: 250 × 150 × 500 mm – 2400 × 1800 × 1500 mm
    Type XS 230: 288 × 150 × 500 mm – 2400 × 1800 × 1500 mm
    Type XS 300: 375 × 150 × 500 mm – 2400 × 1800 × 1500 mm
    Width subdivided2401 – 4800 mm
    Height subdivide1801 – 3600 mm
    Length subdivided1501 – 3000 mm
    Intermediate sizesIn increments of 1 mm
    Operating temperature

    Up to 100 °C, variant L up to 300 °C for 8 h max.

    Special characteristics


    • Increased insertion loss even in the high-frequency range




    • Leakage class C and pressure class 2 according to EN 15727




    • Energy savings due to aerodynamically formed splitter frame
      • Up to 30 % lower differential pressure
    • Hygiene tested and compliant with VDI 6022
    • Multi-section construction available for large dimensions



    Material and surfaces

    • Duct, flange in galvanised sheet steel 1.0917 or stainless steel 1.4301
    • Angle section frame in galvanised L steel S235JRC2




    • Splitter frame and centre mullion made of galvanised sheet steel 1.0917 or stainless steel 1.4301
      • Expanded metal facing made of galvanised steel 1.0917
      • Perforated metal facing made of stainless steel 1.4301
      • Absorption material is mineral wool
        • To EN 13501, fire rating class A1, non-combustible
        • RAL quality mark RAL-GZ 388
        • Biosoluble and hence hygienically safe according to the German TRGS 905 (Technical Rules for Hazardous Substances) and EU directive 97/69/EC
        • Faced with glass fibre fabric as a protection against erosion from airflow velocities of up to 20 m/s
        • Inert to fungal and bacterial growth according to EN 846



    Construction



    Duct

    • No entry: with duct
    • OL: without duct (set of XK splitters only)


    Splitter surface



    • F: Glass fibre fabric
    • L: glass fibre fabric faced with expanded metal as an additional mechanical protection for the sound absorbing material
      • Stainless steel construction with perforated metal facing


    Materials and surfaces



    • No entry: galvanised steel 1.0917
    • A2: stainless steel 1.4301
    • P1: splitters powder-coated RAL 7001, silver grey


    Duct connection



    • No entry: none (set of splitters only)
    • P: flange 30 mm, galvanised or stainless steel
    • W: angle section frame 35 × 35 × 3 mm, galvanised
    • T: flange 20 mm, galvanised


    Matching frame



    • No entry: none
    • G: matching frame (only for angle section frame W)


    Technical data



    • Splitter thickness: 100, 200, 230, 300 mm
    • Dimensions B × H × L: XS 100: 150 × 150 × 500 mm, XS 200: 250 × 150 × 500 mm, XS 230: 288 × 150 × 500 mm, XS 300: 375 × 150 × 500 mm
    • Undivided construction up to 2400 × 1800 × 1500 mm
    • Width subdivided: 2401 – 4800 mm
    • Height subdivided: 1801 – 3600 mm
    • Length subdivided: 1501 – 3000 mm
    • Intermediate sizes: in increments of 1 mm
    • Operating temperature: up to 100 °C, variant L up to 300 °C for 8 h max.

     

    The length (L) of splitter sound attenuators refers to the airflow direction.




    Sizing data


    • B [mm]
    • H [mm]
    • L (in airflow direction) [mm]
    • qv  (m³/h)
    • De at 250 Hz [dB]
    • Δpt [Pa]

    XSFA2/900×600×1500/3×200/P/G
    |||||| | | | | |
    123456 7 8 9 10 11
    1 Type XS Splitter sound attenuator

    2 DuctNo entry: with duct
    OL Without duct (set of XK splitters only)


    3 Splitter surface
    F Glass fibre fabricL Glass fibre fabric and expanded metal

    4 Material - duct and splittersNo entry: galvanised steel (1.0917)
    A2 Stainless steel (1.4301)
    P1 Powder-coated RAL 7001, silver grey (with duct OL)

    5 Width [mm]
    150 – 4800 (with duct casing)
    150 – 100000 (without duct casing)

    6 Height [mm]
    150 – 3600 (with duct casing)
    150 – 5000 (without duct casing)

    7 Length in airflow direction [mm]
    500 – 3000 (with duct casing)
    150 – 5000 (without duct casing)

    8 No. of splitters
    Specify

    9 Splitter thickness [mm]
    100, 200, 230, 300 

    10 Duct connection

    No entry: none (set of XK splitters only)P Flange, 30 mm, galvanised steel or stainless steel
    W Angle section frame, 35 × 35 × 3 mm, galvanised steel S235JRC2 only (sound attenuators with the width or height subdivided have to have an angle section frame)
    T Flange, 20 mm, galvanised steel only

    11 Matching frameNo entry: noneG Matching frame (only for angle section frame)

    Order example: XS-L/900×1500×1000/3×230/P

    Air ductWith air duct
    Splitter surfaceGlass fibre fabric and expanded metal
    Materialgalvanised steel 1.0917
    Width900 mm
    Height1500 mm
    Length1000 mm
    No. of splitters3
    Splitter thickness230 mm
    Duct connectionStandard flange 30 mm

     
    Order example: XS-OL-L-A2/800×1500×1500/3×200
    Air ductWithout air duct (only set of splitters Type XK)
    Splitter surfaceGlass fibre fabric and perforated sheet metal
    MaterialStainless steel 1.4301
    Width800 mm
    Height1500 mm
    Length1500 mm
    No. of splitters3
    Splitter thickness200 mm

    Productdetails

    • PRODUCTDETAILS

    Installation and commissioning

    • Follow the installation information and comply with the general codes of good practice in order to achieve the given performance data
    • Up to height H = 1200 mm: any installation orientation, but we recommend upright installation of splitters
    • From height H = 1201 mm: upright installation only
    • The length (L) of sound attenuator splitters and splitter sound attenuators refers to the airflow direction; be sure to note how width, height and length are defined, particularly in case of a vertical airflow
    • Installation in ducts outside of closed rooms requires sufficient pection against the effects of weather

    Downloads

    product information

    certificates

    operation manuals

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