AK | TROX Malaysia Sdn Bhd.

Shut-off damper, variant AK, with actuator

Tested to VDI 6022

Variant for manual operation

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

Application

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

Description

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

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

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

Hygiene conforms to 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

Technical information

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

Schematic illustration of the AK 00137312_0

① Damper blade
② Lip seal
③ Casing
④ Actuator

Nominal sizes	100 – 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.

Sizing example

Given data

V_max = 100 l/s (360 m³/h)

Required sound pressure level in the room 30 dB(A)

Quick sizing

AK/160

Δp_st = 10 Pa

Air-regenerated noise L_PA = 22 dB(A)

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)
100	10	36	5	<15
100	40	144	10	27
100	65	234	25	38
100	95	342	55	49
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 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 consists of the 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 to EN 1751, class C.

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

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

Construction

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

Technical data

Nominal sizes: 100 – 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
AK Shut-off damper

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

Construction
No entry: none
FL Flanges on both ends

Nominal size [mm]
100
125
160
200
250
315
400

Accessories
       No entry: none
D2       Lip seals on both ends
G2       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: AK/160/D2/B30

Material	Galvanised sheet steel
Nominal size	160 mm
Accessories	Lip seals on both ends
Actuator	Supply voltage 24 V AC/DC

Order example: AK-A2-FL/200/G2

Material	Stainless steel
Construction	Flanges on both ends
Nominal size	200 mm
Accessories	Matching flanges for both ends

Variants, Attachments, Dimensions and weight

Shut-off damper, variant AK

Materials

Order code detail	Part	Material	Notes
–	Casing	Galvanised sheet steel
–	Damper blade	Galvanised sheet steel
–	Blade seal	Thermoplastic elastomer (TPE)
–	Shaft	Galvanised steel
–	Plain bearings	Thermoplastic polyurethane (TPU)
P1	Casing	Galvanised sheet steel
P1	Damper blade	Stainless steel, material no. 1.4301
P1	Shaft	Stainless steel, material no. 1.4305
A2	Casing	Stainless steel, material no. 1.4301
A2	Damper blade	Stainless steel, material no. 1.4301
A2	Shaft	Stainless steel, material no. 1.4305

Surfaces

Order code detail	Part	Surface	Notes
–	Casing	Untreated
P1	Casing	Powder-coated, RAL 7001, silver grey
A2	Casing	Untreated

AK, 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	–

AK, pneumatic actuators

Order code detail	Actuator	Control pressure	Auxiliary switch
Pneumatic actuators
TN0	Pneumatic actuator TROX	0.2 – 1.0 bar	–

Nominal size	AK L mm	AK m kg	AK/.../B** L mm	AK/.../B** m kg	AK/.../TN0 L mm	AK/.../TN0 m kg	ØD mm
100	250	1.1	250	2.6	600	3.3	99
125	250	1.4	250	2.9	600	3.6	124
160	250	1.8	250	3.3	600	4.2	159
200	250	2.5	250	4.0	600	5.1	199
250	250	3.5	250	5.0	600	6.1	249
315	400	5.1	400	6.6	600	7.2	314
400	400	7.1	400	8.6	600	9.4	399

AK-FL

Nominal size	AK-FL L mm	AK-FL m kg	AK-FL/.../B** L mm	AK-FL/.../B** m kg	AK-FL/.../TN0 L mm	AK-FL/.../TN0 m kg	ØD mm	ØD₁ mm	ØD₂ mm	n	T mm
100	230	1.8	230	3.2	580	3.9	99	132	152	4	4
125	230	2.0	230	3.5	580	4.2	124	157	177	4	4
160	230	3.0	230	4.4	580	5.3	159	192	212	6	4
200	230	3.9	230	5.4	580	6.5	199	233	253	6	4
250	230	5.2	230	6.7	580	7.8	249	283	303	6	4
315	380	8.2	380	9.7	580	10.3	314	352	378	8	4
400	380	11.0	380	12.5	580	13.3	399	438	464	8	4

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	200	200
With electric actuator	200	300	300
With pneumatic actuator	400	300	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 AK
Product data sheet Type AK

Product data sheet 3,1 MB pdf

certificates

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_2020_06_08_DE_en Hygiene certificate 2 MB pdf

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