Application
Special characteristics
Nominal sizes
From nominal size 160 with actuator
Variants
Connection
Actuator
Parts and characteristics
Useful additions
Construction features
Materials and surfaces
Fixed
Adjustable
Standards and guidelines
Maintenance
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.
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 programme.
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
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
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
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, excellent acoustic properties. 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 have an additional spherical casing and a casing with a spigot, raised edges or saddle connector.
For push fitting directly onto circular ducts or as a branch off circular or rectangular ducts; also for installation on plane surfaces.
Special characteristics
Materials and surfaces
Fixed
Adjustable
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: DUK-V-K-E1/250/P1 – RAL 9016
Discharge direction | Adjustable |
Connection | Spigot to fit onto rectangular ducts |
Adjustment | 230 V AC |
Nominal size | 250 mm |
Exposed surface | White aluminium, similar to RAL 9006 |
Order example: DUK-F/250
Discharge direction | Fixed |
Nominal size | 250 mm |
DUK-V
Variant
Nominal sizes
Parts and characteristics
DUK-V-A
Variant
Nominal sizes
From nominal size 160 with actuator
Parts and characteristics
Construction features
DUK-V-K
Variant
Nominal sizes
From nominal size 160 with actuator
Parts and characteristics
DUK-V-R
Variant
Nominal sizes
From nominal size 160 with actuator
Parts and characteristics
DUK-F
Variant
Nominal sizes
Parts and characteristics
DUK-V
mm | mm | mm | mm | kg | |
DUK-V-A
mm | mm | mm | mm | mm | mm | kg | |
DUK-V-A-E*
mm | mm | mm | mm | mm | mm | kg | |
DUK-V-K
mm | mm | mm | mm | mm | kg | |
DUK-V-K-E*
mm | mm | mm | mm | mm | kg | |
DUK-V-R
mm | mm | mm | mm | mm | kg | |
DUK-V-R-E*
mm | mm | mm | mm | mm | kg | |
Circular duct diameter ØD5 [mm]
200 |
250 |
315 |
500 |
630 |
800 | |
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DUK-F
mm | mm | kg | |
DUK-V
mm | mm | m² | |
DUK-F
mm | mm | m² | |
Installation and commissioning
These are only schematic diagrams to illustrate installation details.
Principal dimensions
ØD₁ [mm]
Outer diameter of the face cover ring
ØD₂ [mm]
Smallest nozzle diameter (at the discharge opening)
ØD₃ [mm]
Diameter of the nozzle casing
ØD₄ [mm]
Nominal width of the circular duct, for nozzles with saddle connector
L₁ [mm]
Length of the face cover ring
L₂ [mm]
Casing length
m [kg]
Weight
Nomenclature
LWA [dB(A)]
Sound power level of the air-regenerated noise
V [m³/h] and [l/s]
Volume flow rate
Δtz [K]
Supply air to room air temperature difference
Δpt [Pa]
Total differential pressure
vL [m/s]
Air velocity at throw distance L (measured at the centre of the airflow)
L [m]
Throw distance with isothermal operation, no throw distance reduction
Aeff [m²]
Effective air discharge area
All sound power levels are based on 1 pW.
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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