Type 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 B


Optional equipment and accessories

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

Shut-off damper, variant AKK 00136350_0
  • Application
  • Description

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

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

  • Min/Max actuators: Actuators for switching between minimum and maximum volume flow rate setpoint values
  • Auxiliary switch for capturing the end positions

Construction features

  • Circular casing
  • Spigot suitable for ducts according to DIN 8077
  • Position of the damper blade indicated externally at the shaft extension
  • All components coming into contact with the airflow are made of plastic (no interior metal parts)

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 information

  • Function
  • Technical data
  • Quick sizing
  • Specification text
  • Order code
Schematic illustration of the AKK (construction variant with flange) 00135857_0

① Damper blade

② Plain bearings

③ Flange

④ Actuator

Nominal sizes125 – 400 mm
Acceptable static differential pressure1500 Pa
Operating temperature10 – 50 °C


Quick sizing: Static differential pressure and sound pressure levels with open damper blade

Nominal sizeVVDifferential pressureAir-regenerated noise
Nominal sizeVV∆pstLPA
Nominal sizeVV∆pstLPA
Nominal sizel/sm³/hPadB(A)
125 15 54 5<15
125 60 216 1024
125 105 378 2536
125 150 540 5045
160 25 90 5<15
160 100 360 1022
160 175 630 2033
160 250 900 4541
200 40 144 5<15
200 160 576 1021
200 280 1008 2031
200 405 1458 4039
250 60 216 <5<15
250 250 900 519
250 430 1548 1529
250 615 2214 3038
315 100 360 <5<15
315 410 1476 521
315 720 2592 1534
315 1030 3708 2543
400 170 612 <5<15
400 670 2412 534
400 1175 4230 1050
400 1680 6048 1561


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 B.

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

00131624_0

 Type
AKK       Shut-off damper, plastic

 Flange
       No entry: none
FL       Flanges on both ends

Nominal size [mm]
125
160
200
250
315
400

 

 Accessories
       No entry: none
GK       Matching flanges for both ends

 Actuator
       No entry: manual operation
       For example
B20       24 V AC/DC, modulating 2 – 10 V DC
B30       24 V AC/DC, 3-point
B32       24 V AC/DC, 3-point, with auxiliary switch
TN0       Pneumatic 0.2 – 1 bar

 Damper blade position
       Only for spring return actuators and pneumatic actuators
NO       Pressure off/power off to OPEN
NC       Power off/Pressure off to close


 

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Contact

Thank you for your message!

Visual contact Visual contact

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Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265