AK-introduction-image
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Variant for manual operation
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Tested in accordance with VDI 6022
AK-introduction-image
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AK 

For low-leakage shut-off

Circular shut-off dampers for shutting off the airflow in ventilation and air conditioning systems
■ Low-maintenance damper blade mechanism
■ Closed blade air leakage according to EN 1751, up to class 4
■ Casing air leakage according 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 for shutting off or restricting the airflow in ventilation ducts of air conditioning systems

Special characteristics
  • 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 shutoff 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

Construction features
  • Circular casing
  • Spigot suitable for circular ducts to EN 1506 or EN 13180
  • Spigot with groove for lip seal
  • Position of the damper blade indicated externally at the shaft extension
  • AK-FL: Flanges to EN 12220

Material and surfaces
Galvanised sheet steel construction
  • Casing and damper blade made of galvanised sheet steel
  • Blade seal made of TPE plastic
  • Plastic plain bearings 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 according to EN 1751, class C

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

Disclosure of Chemicals
  • RoHS EU Directive 2011/65/EU (RoHS)
    • This product or single variants comply with EU Directive 2011/65/EU (RoHS) on the restriction of the use of certain hazardous substances in electrical and electronic equipment. For more information, please refer to our Environmental Product Declarations.
  • REACH 1907/2006 (EC Regulation REACH)
    • This product or single variants comply with the provisions of EC Regulation No. 1907/2006, also known as REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals). For more information, please refer to our Environmental Product Declarations.

Technical information

  • Function
  • TECHNICAL DATA
  • SPECIFICATION TEXT
  • ORDER CODE
AK: schematic illustration AK-Function

1 Damper blade with sealing profile
3 Lip seal
3 Casing
4 Actuator (optional)

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.

Nominal sizes

100 – 400 mm

Permissable static differential pressure

1500 Pa

Operating temperature

10 to 50 °C

This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.


Circular shut-off dampers for shutting off or restricting the airflow in ventilation ducts of air conditioning systems, for supply air or extract air, available in 7 nominal sizes
Suitable for duct pressures up to 1500 Pa.
Ready-to-install unit which consists of a casing with a damper blade.
Spigot with groove for lip seal, suitable for connecting ducts according to EN 1506 or EN 13180.
Position of the damper blade indicated externally at the shaft extension.
Closed blade air leakage to EN 1751, class 4 (nominal sizes 100, 125 and 160, class 3).
Casing air leakage according to EN 1751, class C.


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

Material and surfaces
Galvanised sheet steel construction
  • Casing and damper blade made of galvanised sheet steel
  • Blade seal made of TPE plastic
  • Plastic plain bearings 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

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

Technical data
  • Nominal sizes: 100 to 400 mm
  • Acceptable static differential pressure: 1500 Pa

Sizing data
  • qᵥ [m³/h]
Air-regenerated noise
  • LPA [dB(A)]
AKP1FL/160/G2/BP0/NO
|||||||
1234567

1 Type

AK Shut-off damper

2 Material
No entry: galvanised sheet steel
P1 Powder-coated RAL 7001 (silver grey)
A2 Stainless steel


3 Construction

No entry: standard construction

FL Flanges on both ends


4 Nominal size [mm]

100, 125, 160, 200, 250, 315, 400


5 Accessories

No entry: without accessories

D2 Double lip seal on both ends

G2 Matching flanges on both ends


6 Actuator

No entry: Shut-off damper, manually adjustable

Open/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 switch

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, with safety position

BR2 24 – 240 V AC, 24 – 125 V DC, spring return, with auxiliary switch, with safety position

Variable actuators
B20 24 V AC/DC, modulating, 2 – 10 V DC
B22 24 V AC/DC, modulating 2 – 10 V DC, with auxiliary switch

Pneumatic actuator with safety position
TN0 Pneumatic actuator 0.2 – 1 bar

7 Damper blade position
Only with spring return actuator or pneumatic actuator
NO de-energised/de-pressurised OPEN (Normally Open)
NC de-energised/de-pressurised CLOSED (Normally Closed)

Order example: AK-P1-FL/160/G2/BP0/NO

TypeAK
MaterialPowder-coated RAL 7001 (silver grey)
ConstructionFlanges on both ends
Nominal size [mm]160
AccessoriesMatching flanges both ends
Actuator24 V AC/DC, spring return actuator
Damper blade positionde-energised/de-pressurised OPEN (Normally Open)


Downloads

informazioni di prodotto

certificati

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Grazie per il tuo messaggio!

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Il nostro dipartimento per la gestione delle richieste ti contatterà appena possibile.
Per domande di carattere generale riguardanti i nostri prodotti o servizi, è possibile contattare:
Tel.: +39 029829741 | Fax: +39 029829760