Type AK FOR LOW-LEAKAGE SHUT-OFF. Homepage > Products > Control units > Shut-off and restriction > Shut-Off Devices > Type AK

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1 Homepage > Products > Control units > Shut-off and restriction > Shut-Off Devices > Type AK Type 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

2 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

3 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 Spigot with groove for lip seal Position of the damper blade indicated externally at the shaft extension AK-FL: Flanges to EN 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 Shaft made of stainless steel Stainless steel construction (A2) Casing and damper blade made of stainless steel Shaft made of stainless steel Standards and guidelines Hygiene conforms to VDI 6022 Closed blade air leakage to EN 1751, class 4 (nominal sizes 100, 125 and 160,

4 class 3) Nominal sizes 100, 125, and 160 meet the general requirements, nominal sizes 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 FUNCTION Schematic illustration of the AK 1 Damper blade 2 Lip seal 3 Casing 4 Actuator TECHNICAL DATA Nominal sizes mm Acceptable static differential pressure 1500 Pa Operating temperature C QUICK SIZING

5 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 = 100 l/s (360 m /h) max Required sound pressure level in the room 30 db(a) Quick sizing AK/160 Δp = 10 Pa st Air-regenerated noise L = 22 db(a) 3 PA Quick sizing: Static differential pressure and sound pressure levels with open damper blade Nominal size V Differential pressure Air-regenerated noise Nominal size 100 V Δpst LPA l/s m³/h Pa db(a) < < <15 160

6 < <5 < <5 < <5 < SPECIFICATION TEXT

7 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 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 Shaft made of stainless steel Stainless steel construction (A2) Casing and damper blade made of stainless steel Shaft made of stainless steel Construction

8 Galvanised sheet steel P1: Powder-coated, silver grey (RAL 7001) A2: Stainless steel Technical data Nominal sizes: mm Acceptable static differential pressure: 1500 Pa Sizing data V [m³/h] Air-regenerated noise L [db(a)] PA This specification text describes the general properties of the product. Texts for variants can be generated with our Easy Product Finder design programme. ORDER CODE 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

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

10 AK Type Shut-off damper Accessories No entry: none Material No entry: galvanised sheet steel P1 Powder-coated, silver grey (RAL 7001) D2 G2 Lip seals on both ends Matching flanges for both ends Actuator A2 Stainless steel Construction No entry: manual operation For example B20 24 V AC/DC, modulating 2 10 V DC FL No entry: none Flanges on both ends B30 B32 TN0 24 V AC/DC, 3-point 24 V AC/DC, 3-point, with auxiliary switch Pneumatic bar Nominal size [mm] 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 Variants, Attachments, Dimensions and weight VARIANTS Materials

11 Order code detail Part Material Notes Casing Damper blade Galvanised sheet steel Galvanised sheet steel Blade seal Shaft Thermoplastic elastomer (TPE) Galvanised steel Plain bearings Thermoplastic polyurethane (TPU) P1 Casing Galvanised sheet steel Damper blade Stainless steel, material no P1 Shaft Stainless steel, material no A2 Casing Stainless steel, material no Damper blade Stainless steel, material no A2 Shaft Stainless steel, material no Surfaces Order code detail Part Surface Notes Casing Untreated P1 Casing Powder-coated, RAL 7001, silver grey A2 Casing Untreated Shut-off damper, variant AK

12 AK shut-off damper, variant with actuator ATTACHMENTS AK, electric actuators

13 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 V AC B42 Actuator with mechanical stops TROX/Belimo 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 V AC, V DC BR2 Spring return actuator with mechanical stops TROX/Belimo V AC, 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 bar DIMENSIONS AND WEIGHT

14 AK Nominal size AK L mm AK m kg AK/.../B** AK/.../B** AK/.../TN0 L mm m kg L mm AK/.../TN0 m kg ØD mm AK-FL Nominal size AK-FL AK-FL AK-FL/.../B** AK-FL/.../B** AK-FL/.../TN0 L mm m kg L mm m kg L mm AK-FL/.../TN0 m kg ØD ØD1 ØD2 T mm mm mm n mm AK

15 AK-FL AK/.../B** (electric actuators)

16 1) for spring return actuators up to 195 AK-FL/.../B** (electric actuators) 1) for spring return actuators up to 195 AK/.../TN0 (pneumatic drive)

17 AK-FL/.../TN0 (pneumatic drive) Installation details, Basic information and nomenclature

18 INSTALLATION DETAILS 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 mm Without actuator With electric actuator With pneumatic actuator Access to attachments, attached on one side

19 BASIC INFORMATION AND NOMENCLATURE 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

20 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 [db(a)] PA 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 [Pa] st Static differential pressure Definition of noise Home Contacts Imprint Delivery and payment terms Privacy Disclaimer TROX GmbH

21 Homepage > Products > Control units > Shut-off and restriction > Shut-Off Devices > Type AK 1 Air-regenerated noise 2 Case-radiated noise Static differential pressure Home Contacts Imprint Delivery and payment terms Privacy Disclaimer TROX GmbH

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