AKK

Shut-off damper, variant AKK

Tested to VDI 6022

Variant for manual operation

Variant with circular spigot

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

Application

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

Description

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

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		∆p_st	L_PA
Nominal size	V		∆p_st	L_PA
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

L_PA _______________________ [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.

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

Shut-off dampers Type AKK

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

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

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	①	②	③
Attachments	mm
Without actuator	250	150	200
With electric actuator	300	200	300
With pneumatic actuator	400	350	300

Definition of noise

① Air-regenerated noise
② Case-radiated noise

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

L_PA [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

Δp_st [Pa]

Static differential pressure

Downloads

product information

Print page AKK
Product data sheet Type AKK

Product data sheet 2,4 MB pdf

certificates

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_2020_06_08_DE_en Hygiene certificate 1,7 MB pdf

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