AKK_img_01psd.png
Plastic shut-off damper with flange (AKK-FL)

Variant with electric actuator

AKK_img_05psd.png
Variant with circular spigot

Variant with circular spigot

AKK_img_04psd.png
Variant for manual operation

Variant for manual operation

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Tested to VDI 6022

Tested to VDI 6022

AKK_img_01psd.png
AKK_img_05psd.png
AKK_img_04psd.png
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AKK

For contaminated air

Plastic circular shut-off dampers for shutting off aggressive media volume flows in air conditioning systems

  • Maintenance-free damper blade mechanism
  • Closed blade air leakage to EN 1751, class 3
  • Casing air leakage to EN 1751, class C

Optional equipment and accessories

  • Electric actuator
  • Spring return actuator
  • Pneumatic actuator
  • Auxiliary switch with adjustable switching points for capturing the end positions
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    General information


    Application

    • Plastic circular shut-off dampers Type AKK for shutting off or restricting the airflow in ventilation ducts of air conditioning systems
    • Suitable for contaminated air


    Special features

    • Damper blade can be actuated manually, electrically or pneumatically
    • Low-leakage shut-off
    • Safety function provided by optional spring return actuator


    Nominal sizes

    • 125, 160, 200, 250, 315, 400


    Variants

    • AKK: Shut-off damper
    • AKK-FL: Shut-off damper with flanges on both ends


    Parts and characteristics

    • Ready-to-install shut-off damper
    • Damper blade with blade mechanism


    Attachments

    • Open/Close actuators: For the opening and closing of shut-off dampers in air conditioning systems
    • Auxiliary switch for capturing the end positions



    Accessories


    • Matching flanges for both ends, including seals


    Technical data


    • Nominal sizes: 125 – 400 mm
    • Acceptable static differential pressure: 1500 Pa


    Standards and guidelines


    • Meets the hygiene requirements of VDI 6022
    • Closed blade air leakage to EN 1751, class 3
    • Meets the general requirements of DIN 1946, part 4, with regard to the acceptable closed blade air leakage
    • Casing air leakage to EN 1751, class C


    Maintenance


    • Maintenance-free, as construction and materials are not subject to wear and tear

    TECHNICAL INFORMATION

    • FUNCTION
    • TECHNICAL DATA
    • SPECIFICATION TEXT
    • ORDER CODE
    AKK: schematic diagram (version with flange) AKK_gc_03ai.png

    1 Damper blade

    2 Plain bearings

    3 Flange (optional)

    4 Actuator (optional)

    Functional description
    For airtight shut-off of volume flows in round plastic air ducts - typically for contaminated extract air in laboratories. The basic version is shut off by manually actuating the damper blade. Electrically or pneumatically operated actuators, which are available in different versions, can also be used to operate the damper blade. The versions differ with regard to the power supply and safety position (de-energised or de-pressurised state). Actuators with auxiliary switches for electrical monitoring of the damper blade position are also available.

    The actuator of a damper blade must be controlled by a customer-side circuit and then moves the damper blade to the OPEN or CLOSED position.

    Circular shut-off dampers in PPs plastic for air conditioning systems, available in 6 nominal sizes. Suitable for shutting off or restricting extract air flows containing aggressive substances since all components coming into contact with the airflow are made of plastic (no interior metal parts).

    Suitable for duct pressures up to 1500 Pa.

    Ready-to-install unit consists of the casing with a damper blade.

    Spigot, suitable for ducts according to DIN 8077.

    Position of the damper blade indicated externally at the shaft extension.

    Closed blade air leakage to EN 1751, class 3.

    Casing air leakage to EN 1751, class C.


    Special features

    • Damper blade can be actuated manually, electrically or pneumatically
    • Low-leakage shut-off
    • Safety function provided by optional spring return actuator


    Materials and surfaces

    • Casing and damper blade made of flame-resistant
    • polypropylene (PPs)
    • Plain bearings made of polypropylene (PP)
    • Damper blade seals in chloroprene rubber (CR)


    Technical data

    • Nominal sizes: 125 – 400 mm
    • Acceptable static differential pressure: 1500 Pa

    Sizing data

    • qᵥ [m³/h]
    Air-regenerated noise
    • LPA [dB(A)]
    AKK–FL/160/GK/BP0/NO
    ||||||
    123456
    1 Type
    AKK     Shut-off damper, plastic

    2 Flange
    No entry: none
    FL Flanges on both ends

    3 Nominal size [mm]
    125, 160, 200, 250, 315, 400

    4 Accessories
    No entry: without accessories
    GK Matching flanges both ends

    5 Actuator
    No entry: Shut-off damper, manually adjustableOpen/Close actuators
    B30 24 V AC/DC, 3-point
    B32 24 V AC/DC, 3-point, with auxiliary switch
    B40 230 V AC, 3-point
    B42 230 V AC, 3-point, with auxiliary switchOpen/Close actuators with safe position
    BP0 24 V AC/DC, spring return
    BP2 24 V AC/DC, spring return, with auxiliary switch
    BR0 24 - 240 V AC, 24 - 125 V DC, spring return
    BR2 24 - 240 V AC, 24 - 125 V DC, spring return, with auxiliary switchModulating actuators
    B20 24 V AC/DC, modulating, 2 – 10 V DCPneumatic actuator with safe position
    B22 24 V AC/DC, modulating, 2 – 10 V DC, with auxiliary switch
    Pneumatic actuator with safe position
    TN0 Pneumatic actuator 0.2 – 1 bar

    6 Damper blade position
    Only with spring return actuator or pneumatic actuator
    NO pressure off/power off to OPEN (Normally Open)
    NC power off/pressure off to CLOSE (Normally Closed)Order example: AKK-FL/160/GK/BP0/NO


    Order example: AKK-FL/160/GK/BP0/NO

    TypeAKK
    FlangeFlanges on both ends
    Nominal size [mm]160
    AccessoriesMatching flanges both ends
    Actuator24 V AC/DC, spring return actuator
    Nominal sizepressure off/power off to OPEN (Normally Open)

    Downloads

    product information

    • Product data sheet Type AKK

      AKK_PD_2024_10_30_DE_en Product data sheet 5,2 MB pdf

    certificates

    • AKK_HC_2020_06_08_DE_enpdf.pdf

      690 KB pdf

    • Certificate concerning statistical leakage tests

      LC_v1_2024_10_DE_en Certificate  660 KB pdf

    • Declaration of conformity or declaration of incorporation Type AKK

      Declaration of conformity or declaration of incorporation 94 KB pdf

    • Declaration of hygiene conformity Type AKK

      AKK_HC_2024_05_DE_en Hygiene certificate 1,5 MB pdf

    operation manuals

    • Assembly and operating manual AKK

      AKK_IOM_CD10038_V1_2023_12_GB_en Assembly and operating manual 1,3 MB pdf

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