00131938_0
Shut-off damper, variant AK, with actuator


00131938_0
00132715_0
00132820_0

AK 

For low-leakage shut-off

Circular shut-off dampers for shutting off volume flows in ventilation ducts of air conditioning systems

  • Maintenance-free damper blade mechanism
  • Closed blade air leakage to EN 1751, up to class 4
  • 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

General information

Application

  • Circular shut-off dampers Type AK for shutting off or restricting the airflow in ventilation ducts of air conditioning systems

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

  • 100, 125, 160, 200, 250, 315, 400


Variants

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

Construction

  • Galvanised sheet steel
  • P1: Powder-coated, silver grey (RAL 7001)
  • A2: Stainless steel

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

  • Lip seals on both ends (factory fitted)
  • Matching flanges for both ends


Materials and surfaces

Galvanised sheet steel construction

  • Casing and damper blade made of galvanised sheet steel
  • Blade seal made of TPE plastic
  • Bearings made of TPU


Powder-coated construction (P1)

  • Casing made of galvanised sheet steel, powder-coated
  • Damper blade made of stainless steel 1.4301
  • Shaft made of stainless steel 1.4305


Stainless steel construction (A2)

  • Casing and damper blade made of stainless steel 1.4301
  • Shaft made of stainless steel 1.4305

Standards and guidelines

  • Meets the hygiene requirements of VDI 6022
  • Closed blade air leakage to EN 1751, class 4 (nominal sizes 100, 125 and 160, class 3)
  • Nominal sizes 100, 125, and 160 meet the general requirements, nominal sizes 200 – 400 meet the increased 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
AK: schematic representation 00137312_0
① Damper blade
② Lip seal
③ Casing
④ Actuator


Functional description

For airtight shut-off of volume flows in round air ducts. 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.

Downloads

product information

  • Product data sheet Type AK

    AK_PD_2024_09_10_DE_en Product data sheet 830 KB pdf

certificates

  • Certificate concerning statistical leakage tests

    LC_v2_2024_10_DE_en Certificate  650 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 AK

    Declaration of conformity or declaration of incorporation 94 KB pdf

  • Declaration of hygiene conformity Type AK

    AK_HC_2024_05_DE_en Hygiene certificate 1,9 MB pdf

  • Environmental product declaration AK

    AK_EPD_2024_11_DE_en Environmental product declaration 1,1 MB pdf

operation manuals

  • Assembly and operating manual AK

    AK_IOM_CD10037_V1_2023_12_GB_en Assembly and operating manual  1,2 MB pdf

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