Application
Special features
Nominal sizes
Variants
Construction
Parts and characteristics
Attachments
Accessories
Construction features
Materials and surfaces
Galvanised sheet steel construction
Powder-coated construction (P1)
Stainless steel construction (A2)
Standards and guidelines
Maintenance
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
Vmax = 100 l/s (360 m3/h)
Required sound pressure level in the room 30 dB(A)
Quick sizing
AK/160
Δpst = 10 Pa
Air-regenerated noise LPA = 22 dB(A)
Quick sizing: Static differential pressure and sound pressure levels with open damper blade
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
Materials and surfaces
Galvanised sheet steel construction
Powder-coated construction (P1)
Stainless steel construction (A2)
Construction
Technical data
Sizing data
Air-regenerated noise
This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme.
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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 |
Materials
– | 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
– | Casing | Untreated | |
P1 | Casing | Powder-coated, RAL 7001, silver grey | |
A2 | Casing | Untreated |
AK, electric actuators
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
Pneumatic actuators | |||
TN0 | Pneumatic actuator TROX | 0.2 – 1.0 bar | – |
AK
AK mm |
AK kg |
AK/.../B** mm |
AK/.../B** kg |
AK/.../TN0 mm |
AK/.../TN0 kg | mm | |
250 | 1.1 | 250 | 2.6 | 600 | 3.3 | ||
250 | 1.4 | 250 | 2.9 | 600 | 3.6 | ||
250 | 1.8 | 250 | 3.3 | 600 | 4.2 | ||
250 | 2.5 | 250 | 4.0 | 600 | 5.1 | ||
250 | 3.5 | 250 | 5.0 | 600 | 6.1 | ||
400 | 5.1 | 400 | 6.6 | 600 | 7.2 | ||
400 | 7.1 | 400 | 8.6 | 600 | 9.4 |
AK-FL
AK-FL mm |
AK-FL kg |
AK-FL/.../B** mm |
AK-FL/.../B** kg |
AK-FL/.../TN0 mm |
AK-FL/.../TN0 kg | mm | mm | mm | mm | ||
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Installation and commissioning
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
Without actuator | 250 | 200 | 200 |
With electric actuator | 200 | 300 | 300 |
With pneumatic actuator | 400 | 300 | 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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Contact
We are here for you
Please specify your message and type of request.
Tel.: +60 6 678 8188 | Fax: +60 6 678 8288 (388)
Contact
Thank you for your message!
Your message is send and will be processed shortly.
Our department for Service-Requests will contact you asap.
For general question regarding products or services you can also call:
Tel.: +60 6 678 8188 | Fax: +60 6 678 8288 (388)