Application
Special characteristics
Nominal sizes
From nominal size 160 with actuator
Variants
Connection
Actuator
Parts and characteristics
Useful additions
Technical data
Useful additions
Standards and guidelines
Maintenance
DUK
Functional description
Jet nozzles are the preferred solution wherever the supply air has to travel large distances from the point of discharge to the occupied zone. It is possible to adapt the discharge angle, and consequently the direction of the airflow to heating or cooling mode. The supply air to room air temperature difference may range from –12 to +20 K.
Cooling mode
Cooling mode is possible with a positive discharge angle of up to 30°. The supply air jet is directed towards the ceiling, but the higher density of cold air results in an increasing deflection of the air jet towards the floor as the distance from the jet nozzle increases. When the supply air jet reaches the occupied zone, both the supply air to room air temperature difference and the airflow velocity have been reduced to comfortable levels.
This principle of operation allows for long throw distances.
Heating mode
Heating mode is possible with a negative discharge angle of –30° or less. The supply air jet is directed towards the occupied zone. Due to the lower density of warm air the jet becomes buoyant. When the supply air jet reaches the occupied zone, both the supply air to room air temperature difference and the airflow velocity should ideally have been reduced.
The discharge angle can be changed manually or with an electric actuator.
DUK-F
Functional description
Jet nozzles are the preferred solution wherever the supply air has to travel large distances from the point of discharge to the occupied zone. Fixed jet nozzles can be used for heating and cooling. The supply air to room air temperature difference can range from –12 to +20 K.
Cooling mode
The supply air is discharged horizontally, but the higher density of cold air results in an increasing deflection of the air jet towards the floor as the distance from the jet nozzle increases. When the supply air jet reaches the occupied zone, both the supply air to room air temperature difference and the airflow velocity have been reduced to comfortable levels.
Heating mode
The supply air is discharged horizontally, but due to the lower density of warm air the jet becomes buoyant. When the supply air jet reaches the occupied zone, both the supply air to room air temperature difference and the airflow velocity should ideally have been reduced.
Nominal sizes | 100, 125, 160, 200, 250, 315, 400 mm |
Volume flow rate range | 15 – 400 l/s or 54 – 1440 m³/h |
adjustable discharge angle | –30 to +30° |
Supply air to room air temperature difference | –12 to +20 K |
Quick sizing tables provide a good overview of the volume flow rates and corresponding sound power levels and differential pressures.
Exact values for all parameters can be determined with our Easy Product Finder design program.
DUK-V, DUK-V-A, DUK-V-A-(E1, E2, E3), DUK-V-K, DUK-V-K-(E1, E2, E3), DUK-V-R, DUK-V-R-(E1, E2, E3), sound power level and total differential pressure
NS | Volume flow rate [l/s] | Volume flow rate [m³/h] | Δpt [Pa] | LWA [dB(A)] | vL | |
---|---|---|---|---|---|---|
0.5 m/s | 1.0 m/s | |||||
L [m] | ||||||
100 | 8 | 28 | 11 | <15 | <5 | <5 |
100 | 15 | 54 | 38 | <15 | 5 | <5 |
100 | 20 | 72 | 68 | <15 | 7 | <5 |
100 | 30 | 108 | 152 | 30 | 10 | 5 |
125 | 15 | 54 | 13 | <15 | <5 | <5 |
125 | 30 | 108 | 49 | <15 | 8 | <5 |
125 | 45 | 162 | 110 | 31 | 12 | 6 |
125 | 60 | 216 | 196 | 42 | 16 | 8 |
160 | 20 | 72 | 9 | <15 | <5 | <5 |
160 | 40 | 144 | 36 | <15 | 8 | <5 |
160 | 60 | 216 | 81 | 19 | 13 | 6 |
160 | 80 | 288 | 144 | 30 | 17 | 8 |
200 | 35 | 126 | 10 | <15 | 6 | <5 |
200 | 70 | 252 | 37 | <15 | 11 | 6 |
200 | 105 | 378 | 82 | 23 | 17 | 9 |
200 | 140 | 504 | 145 | 35 | 23 | 11 |
250 | 55 | 198 | 9 | <15 | 7 | <5 |
250 | 110 | 396 | 35 | <15 | 14 | 7 |
250 | 165 | 594 | 77 | 22 | 21 | 11 |
250 | 220 | 792 | 137 | 34 | 28 | 14 |
315 | 90 | 324 | 9 | <15 | 9 | <5 |
315 | 185 | 666 | 37 | <15 | 18 | 9 |
315 | 265 | 954 | 75 | 23 | 26 | 13 |
315 | 360 | 1296 | 137 | 35 | >30 | 18 |
400 | 155 | 558 | 6 | <15 | 12 | 6 |
400 | 310 | 1116 | 34 | <15 | 24 | 12 |
400 | 465 | 1674 | 75 | 29 | >30 | 18 |
400 | 620 | 2232 | 133 | 40 | >30 | 24 |
All values apply to discharge angle 0°
L: Throw distance with isothermal operation
DUK-V-A-(E4, E5, E6), DUK-V-K-(E4, E5, E6), DUK-V-R-(E4, E5, E6), sound power level and total differential pressure
NS | Volume flow rate [l/s] | Volume flow rate [m³/h] | Δpt [Pa] | LWA [dB(A)] | vL | |
---|---|---|---|---|---|---|
0.5 m/s | 1.0 m/s | |||||
L [m] | ||||||
160 | 20 | 72 | 9 | <15 | <5 | <5 |
160 | 40 | 144 | 36 | 18 | 8 | <5 |
160 | 60 | 216 | 81 | 31 | 13 | 6 |
160 | 80 | 288 | 144 | 41 | 17 | 8 |
200 | 35 | 126 | 10 | <15 | 6 | <5 |
200 | 70 | 252 | 37 | 22 | 11 | 6 |
200 | 105 | 378 | 82 | 35 | 17 | 9 |
200 | 140 | 504 | 145 | 44 | 23 | 11 |
250 | 55 | 198 | 9 | <15 | 7 | <5 |
250 | 110 | 396 | 35 | 20 | 14 | 7 |
250 | 165 | 594 | 77 | 33 | 21 | 11 |
250 | 220 | 792 | 137 | 43 | 28 | 14 |
315 | 90 | 324 | 9 | <15 | 9 | <5 |
315 | 185 | 666 | 37 | 22 | 18 | 9 |
315 | 265 | 954 | 75 | 33 | 26 | 13 |
315 | 360 | 1296 | 137 | 43 | >30 | 18 |
400 | 155 | 558 | 6 | <15 | 12 | 6 |
400 | 310 | 1116 | 34 | 22 | 24 | 12 |
400 | 465 | 1674 | 75 | 35 | >30 | 18 |
400 | 620 | 2232 | 133 | 44 | >30 | 24 |
All values apply to discharge angle 0°
L: Throw distance with isothermal operation
DUK-F, sound power level and total differential pressure
NS | Volume flow rate [l/s] | Volume flow rate [m³/h] | Δpt [Pa] | LWA [dB(A)] | vL | |
---|---|---|---|---|---|---|
0.5 m/s | 1.0 m/s | |||||
L [m] | ||||||
100 | 8 | 28 | 6 | <15 | 3 | <5 |
100 | 15 | 54 | 33 | <15 | 5 | <5 |
100 | 20 | 72 | 61 | <15 | 7 | 4 |
100 | 30 | 108 | 142 | 19 | 11 | 5 |
125 | 15 | 54 | 10 | <15 | 4 | <5 |
125 | 30 | 108 | 52 | <15 | 9 | <5 |
125 | 45 | 162 | 122 | 16 | 13 | 6 |
125 | 60 | 216 | 220 | 26 | 17 | 9 |
160 | 20 | 72 | 5 | <15 | 4 | <5 |
160 | 40 | 144 | 31 | <15 | 9 | <5 |
160 | 60 | 216 | 74 | <15 | 13 | 7 |
160 | 80 | 288 | 134 | 20 | 17 | 9 |
200 | 35 | 126 | 6 | <15 | 6 | <5 |
200 | 70 | 252 | 33 | <15 | 12 | 6 |
200 | 105 | 378 | 79 | <15 | 17 | 9 |
200 | 140 | 504 | 143 | 24 | 23 | 12 |
250 | 55 | 198 | 6 | <15 | 7 | <5 |
250 | 110 | 396 | 34 | <15 | 14 | <5 |
250 | 165 | 594 | 80 | 18 | 22 | 11 |
250 | 220 | 792 | 145 | 28 | 29 | 14 |
315 | 90 | 324 | 6 | <15 | 9 | 5 |
315 | 185 | 666 | 36 | <15 | 19 | 10 |
315 | 265 | 954 | 77 | 22 | 27 | 14 |
315 | 360 | 1296 | 145 | 33 | 37 | 19 |
400 | 155 | 558 | 6 | <15 | 12 | 6 |
400 | 310 | 1116 | 34 | 17 | 24 | 12 |
400 | 465 | 1674 | 81 | 30 | 35 | 18 |
400 | 620 | 2232 | 148 | 40 | >30 | 24 |
L: Throw distance with isothermal operation
Fixed and adjustable jet nozzles for the ventilation of large internal spaces such as halls and assembly rooms. Air discharge with long throw distance under optimal acoustic conditions. For horizontal air discharge; variants with fixed discharge angle, adjustable air discharge (360°), or air discharge with nozzle that tilts between –30 and +30°.
Fixed nozzles with acoustically optimised contours and countersunk holes for screw-fixing to a plane surface
Adjustable jet nozzles include a spherical nozzle casing and a casing with a spigot, raised edge or saddle connector.
For push fitting directly onto circular ducts or as a junction off circular or rectangular ducts; also for installation on plane surfaces.
Special characteristics
Useful additions
Technical data
Sizing data
air-regenerated noise
DUK | – | V | – | R | – | E1 | / | 250 | × | 630 | / | P1 - RAL 9016 |
| | | | | | | | | | | | | | ||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 |
Order example: DUK-V-R-E1/250×630/P1-RAL9016
Type | DUK |
Air discharge direction | adjustable |
Connection | saddle connector |
Adjustment | 230 V AC, 3-point |
Nominal size [mm] | 250 |
Circular duct diameter [mm] | 630 |
Exposed surface | Powder-coated, RAL 9016 (traffic white) |
Application
DUK-F
Application
DUK-V
Application
DUK-V-A
Designed for high comfort
Together with renowned designers and architects we have developed ceiling, wall, staircase and floor diffusers and grilles that are not only aesthetic design elements, but also meet demanding ventilation and acoustic requirements.
Application
DUK-V-K
Application
DUK-V-R
The schematic diagrams are provided to illustrate installation details.
DUK-V
NS | ØD1 | ØD2 | Aeff [m²] |
---|---|---|---|
100 | 146 | 50 | 0.0019 |
125 | 169 | 64 | 0.0031 |
160 | 200 | 82 | 0.005 |
200 | 257 | 108 | 0.0085 |
250 | 302 | 136 | 0.0135 |
315 | 384 | 174 | 0.0225 |
400 | 467 | 230 | 0.0385 |
DUK-F
NS | ØD1 | ØD2 | Aeff [m²] |
---|---|---|---|
100 | 138 | 50 | 0.00174 |
125 | 161 | 64 | 0.00277 |
160 | 225 | 82 | 0.00469 |
200 | 265 | 108 | 0.00813 |
250 | 315 | 136 | 0.01289 |
315 | 400 | 174 | 0.0211 |
400 | 485 | 230 | 0.03683 |
Installation and commissioning
The schematic diagrams are provided to illustrate installation details.
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Contact
We are here for you
Please specify your message and type of request
Tel.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265
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.: +49 (0)2845 / 202-0 | Fax: +49 (0)2845/202-265