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

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

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)

Standards and guidelines

  • Hygiene conforms to 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 B

Maintenance

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

Technical information

Function, Technical data, Quick sizing, Specification text, Order code

  • 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 sizes

125 – 400 mm

Acceptable static differential pressure

1500 Pa

Operating temperature

10 – 50 °C


Quick sizing tables provide a good overview of the room sound pressure levels that can be expected. Approximate intermediate values can be interpolated. Precise intermediate values and spectral data can be calculated with our Easy Product Finder design programme.

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

Nominal size V Differential pressure Air-regenerated noise
Nominal size V ∆pst LPA
Nominal size V ∆pst LPA
Nominal size l/s m³/h Pa dB(A)

125

15

54

5

<15

125

60

216

10

24

125

105

378

25

36

125

150

540

50

45

160

25

90

5

<15

160

100

360

10

22

160

175

630

20

33

160

250

900

45

41

200

40

144

5

<15

200

160

576

10

21

200

280

1008

20

31

200

405

1458

40

39

250

60

216

<5

<15

250

250

900

5

19

250

430

1548

15

29

250

615

2214

30

38

315

100

360

<5

<15

315

410

1476

5

21

315

720

2592

15

34

315

1030

3708

25

43

400

170

612

<5

<15

400

670

2412

5

34

400

1175

4230

10

50

400

1680

6048

15

61


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

Sizing data

  • V _______________________ [m³/h]

Air-regenerated noise

  • LPA _______________________ [dB(A)]

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

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


Order example: AKK/160/B30

Nominal size

160 mm

Actuator

Supply voltage 24 V AC/DC


 

Variants, Attachments, Dimensions and weight

  • Variants
  • Attachments
  • Dimensions and weight

AKK, electric actuators

Order code detail Actuator Supply voltage Auxiliary switch

Open/Close actuators




B30

Actuator with mechanical stops TROX/Belimo

24 V AC/DC

B32

Actuator with mechanical stops TROX/Belimo

24 V AC/DC

2

B40

Actuator with mechanical stops TROX/Belimo

100 – 240 V AC

B42

Actuator with mechanical stops TROX/Belimo

100 – 240 V AC

2

BP0

Spring return actuator with mechanical stops TROX/Belimo

24 V AC/DC

BP2

Spring return actuator with mechanical stops TROX/Belimo

24 V AC/DC

2

BR0

Spring return actuator with mechanical stops TROX/Belimo

24 – 240 V AC, 24 – 125 V DC

BR2

Spring return actuator with mechanical stops TROX/Belimo

24 – 240 V AC, 24 – 125 V DC

2

Modulating actuators




B20

Modulating actuator 0 – 10 V with mechanical stops TROX/Belimo

24 V AC/DC


AKK, pneumatic actuators

Order code detail Actuator Control pressure Auxiliary switch

Pneumatic actuators




TN0

Pneumatic actuator TROX

0.2 – 1.0 bar


AKK

Nominal size
AKK
m
kg
AKK/.../B**
m
kg
AKK/.../TN0
m
kg
ØD
mm
L
mm
B3
mm
H3
mm
125 1.2 3.1 2.9 125 394 195 145
160 1.5 3.4 3.2 160 394 230 180
200 1.9 3.8 3.6 200 394 270 220
250 3.1 5.0 4.8 250 594 320 270
315 5.0 6.9 6.7 315 594 385 335
400 7.2 9.1 8.9 400 594 470 420


AKK-FL

Nominal size
AKK-FL
m
kg
AKK-FL/.../B**
m
kg
AKK-FL/.../TN0
m
kg
ØD
mm
L
mm
B3
mm
H3
mm
ØD1
mm
ØD2
mm
n
T
mm
125 1.5 3.4 3.2 125 400 195 145 165 185 8 8
160 1.9 3.8 3.6 160 400 230 180 200 230 8 8
200 2.4 4.3 4.1 200 400 270 220 240 270 8 8
250 3.7 5.6 5.4 250 600 320 270 290 320 12 8
315 6.0 7.9 7.7 315 600 385 335 350 395 12 10
400 8.5 10.4 10.2 400 600 470 420 445 475 16 10


Installation details, Basic information and nomenclature

  • Installation details
  • Basic information and nomenclature
Access to attachments, attached on one side 00149821_0


Installation and commissioning

  • Any installation orientation

Space required for commissioning and maintenance

Sufficient space must be kept clear near any attachments to allow for commissioning and maintenance. It may be necessary to provide sufficiently sized inspection access openings.

Space required

Attachments
Attachments mm

Without actuator

250

150

200

With electric actuator

300

200

300

With pneumatic actuator

400

350

300


Principal dimensions

ØD [mm]

Shut-off and flow adjustment dampers made of stainless steel: Outer diameter of the connecting spigot

Shut-off dampers made of plastic: Inside diameter of the connecting spigot

ØD₁ [mm]

Pitch circle diameter of flanges

ØD₂ [mm]

Outer diameter of flanges

ØD₄ [mm]

Inside diameter of the screw holes of flanges

L [mm]

Length of unit including connecting spigot

L₁ [mm]

Length of casing or acoustic cladding

n [ ]

Number of flange screw holes

T [mm]

Flange thickness

m [kg]

Unit weight including the minimum required attachments

Acoustic data

LPA [dB(A)]

A-weighted sound pressure level of air-regenerated noise of the shut-off or flow adjustment damper, system attenuation taken into account


All sound pressure levels are based on 20 μPa.

Volume flow rates

V [m³/h] and [l/s]

Volume flow rate

Differential pressure

Δpst [Pa]

Static differential pressure

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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.: +44 (0)1842 754545 | Fax: +44 (0)1842 763051