CIRCULAR DIFFUSERS KU
SERIESOVERVIEW
OVERVIEWThe KU diffusers with concentric cones are generally fitted in counter ceilings as they can be used in a wide range of commercial, work and industrial spaces with an installation height between 2,5 and 6 metres according to size and model.
MODELS
KU4 series modelFixed cone aluminium diffusers, painted silver RAL 9006 or RAL 9003 with epoxy powder, complete with regulation damper.These diffusers are used for installations between 2,6 and 4,1 metres maximum.The diffuser is fixed laterally using screws to the connection piece of the duct or plenum and using the supplied fixing bridge for use in counter ceilings.
KU5 SeriesComposed by aluminium cones painted white RAL 9010 with epoxy powder and micrometric galvanized carbon steel regulation screw. It is also available to paint the diffuser in other RAL colours.Available sizes: neck size 100, 150, 160, 200, 250, 300, 315, 350, 355, 400, 450, 500 and 630mm.Accessories: counter ceiling fixing clips for diameters 150mm to 315 included, butterfly regulation damper adjustable after installation using screwdriver, angled collecting dampers. Available models: basic, one with thermostatic self adjusting spring, version on 595x595mm panel for modular counter ceilings for neck sizes up to 300mm, version with "fineline" panel size 595x595 and 670x670mm for neck sizes up to 300mm, version perforated steel equalizer.KU6 SeriesMade with aluminium cones painted with white epoxy powder RAL 9010 micrometric regulation screw and
Available sizes: neck size 150, 200, 250, 300 and 350mm.Available versions: version painted silver RAL 9006 and white RAL 9003.
Series KU2 KU5 KU6 KU8The KU2 KU5 KU6 KU8 series diffusers are composed of a fixed external cone and central part composed of individually cones that can be adjusted individually and to a millimetre. The different position of the cones allows to vary the direction of the air flow, so as to obtain horizontal air flows (in cooling) or vertical air flows (in heating). These diffusers are installed at a height ranging from 2,6 to 6 meters in height.The diffuser is fixed laterally using screws to the connection piece of the duct or plenum, alternatively they can be fitter to counter ceilings using clips. The air flow regulation is made by rising or lowering each individual cone.
KU2 SeriesThese diffusers are made completely with antistatic self extinguishing ABS material painted white RAL 9010 and come complete with fixing clips for fixing to flexible ducts.Available sizes: neck size 160, 20 and 250mm.Accessories: counter ceiling fixing clips, quick fitting ABS panel 595x595mm for modular counter ceilings.Available versions: basic and another to include segmented regulation damper that can be adjusted once diffuser has been installed through the central fixed cone.
powder RAL 9010, micrometric regulation screw and antistatic ABS fixed central cone completely self extinguishing and painted white RAL 9010.Available sizes: neck size 100, 150, 160, 200, 250, 300, 315mm.Accessories: counter ceiling fixing clips for neck diameters 150 up to and including 315mm, butterfly regulation damper adjustable after installation using screwdriver, angled collecting dampers. Available models:basic, one with thermostatic self adjusting spring, version on 595x595mm panel for modular counter ceilings for neck sizes up to 300mm, version with "fineline" panel size 595x595 and 670x670mm for neck sizes up to 300mm and version with segment regulation damper adjustable after installation from the central fixed cone on sizes 150, 200 and 260mm.KU8 SeriesManufactured with a carbon galvanized steel external cone, painted white RAL 9010, with internal aluminium cones painted whiter RAL 9010 in epoxy powder and with a micrometric regulation screw and fixed central cone made from antistatic self extinguishing ABS material painted white RAL 9010. Incorporated butterfly regulation damper adjustable after installation using a screwdriver. Available sizes: neck size 160, 200, 250 and 315mm.Accessories: counter ceiling fixing clips for diameters 160 to 315mm included.Available versions: basic model, on 595x595 panel for modular counter ceiling up to neck size 300mm, version with "fineline" panel 595x595mm and 670x670mm up to neck size 300mm.
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CIRCULAR DIFFUSERS KU
SERIESOVERVIEW
KU9 SeriesSingle cone diffusers painted with epoxy powder in white RAL 9010, ideal for medium to low air flows. These diffusers are installed at heights between 2,5 and 5 meters. The single central cone gives the diffuser a refined look adequate even for meeting rooms. It is also possible to paint the diffuser in different RAL colours. Available sizes: neck size 100,150, 160, 200, 250, 300, 315mm.Accessories: counter ceiling fixing clips for neck sizes 150 to 250mm included.Available models: basic and version with 595x595 panel for counter ceiling.
nominal neck diameter mm
100
models
KU5 KU6 KU9KU5 KU6 KU9
KU9KU8KU5 KU6
KU5 KU6KU5 KU6
KU6
KU9KU9KU8
KU8 KU9
KU9KU8
630 KU5
450
KU5KU5
KU2
KU5KU5 KU6
KU5KU2KU2
KU5KU5
KU4
KU4KU4KU4
500
150
160
200
250
315
350
355
400
300
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KU 2
KU 5
KU 6
KU 8
SEIRES
OVERVIEW
ADJUSTABLE CONES CIRCULAR DIFFUSERS
OVERVIEW: The KU 2-5-6-8 series of diffusers are composed from an external containment cone and by a central adjustable section with cones that may be adjusted individually to the nearest millimetre.The different positioning of the round elements allows to vary the direction of the air to obtain combined or single are flows, both vertically or horizontally. For this reason, this supply air diffuser is ideal in all those applications where it is necessary to heat or cool. In the same way it can be used for the extraction of air from the room. The standard height of installation of the diffuser is between 2.6 and 6 metres.
INSTALLATION : The diffuser is fixed laterally using screws directly to the plenum's connection. Various clips are available to fix the diffuser to plaster board counter ceilings and versions with flat or lowered "fineline" panels for use in modular counter ceilings
Ø F
Ø D
HØ C
Ø D
mm mm mm mm mm mm98 230 75 70 198 596148 335 105 100 288 596158 335 105 100 288 596198 423 118 110 370 596248 517 130 120 461 596298 640 146 126 576 596313 640 146 126 576 596348 730 185 -- 656 --353 730 185 -- 656 --398 776 185 -- 700 --448 825 185 -- 755 --498 917 185 -- 825 --628 1045 185 -- 963 --
350 KU5KU5 ¹
150
315
355
KU5 ¹ ² KU6 ² KU8300 KU5 KU6
Ak summer
Ak winter
m² m²
² also available in fineline version
100 KU5 KU6
160 KU2 ³KU2 ³KU2 ³
KU5 ¹ ² KU6 ² ³ KU8KU5 KU6
D C H S F Pneck
nominal diamter
250 KU5 ¹ ² KU6 ² ³
models
KU8200 KU5 ¹ ² KU6 ² ³ KU8
500 KU5 ¹630 KU5
0,13490,1637
400 KU5 ¹450 KU5 ¹
0,02700,03040,04560,06840,09520,10410,12600,1082
0,1108
³ also available with segment damper
¹ also available with automatic regulation using thermostatic spring
0,01380,02680,02980,04310,06220,08400,0910
0,0129
0,12930,16060,19900,24100,3667
0,19480,2850
ceilings.
REGULATION DAMPER: The KU8 series diffusers are supplied with a butterfly regulation damper adjustable using a screw-driver from the face side of the diffuser. The KU2 diffusers and some sizes of the KU6 series diffusers are available with a segmented regulation damper that can be adjusted once installed by acting on the central cone of the diffuser. The KU5 and KU6 diffusers may be supplied with a butterfly damper adjustable using a screw-driver from the face side of the diffuser.
596x596
S
Ø D
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KU2KU5KU6KU8 alluminium
alluminiumABSABS
alluminiumsteel ABS
alluminium
KU 2
KU 5
KU 6
KU 8
SEIRES
MATERIALS
alluminium
BABS
alluminium
AABS
steel
D
ADJUSTABLE CONES CIRCULAR DIFFUSERS
ABS
FABS---
ABSsteel
C E---
ABS---
ABSG
ABSsteel
steel steel
------
DESCRIPTION FOR TENDER:KU2: circular diffuser in ABS colour RAL9010 with manually adjustable cones to optimize the direction of the air flow, for use in counter ceilings; milimetric regulation central screw in ABS; predisposed for connection to a plenum or a flexible duct; can be equipped with a 3 segment regulation damper, manually adjustable without the use of tools, simply by rotating the central cone of the diffuser; can be supplied with a quick fixing panel in ABS, painted RAL9010 for fitting within modular ceilings.
KU5: aluminium circular diffuser painted RAL9010 for use in ceilings, with manually adjustable cones to optimize the direction of the air flow; milimetric regulation central screw in galvanized steel; predisposed for connection to a plenum or a flexible duct; available as standard model or complete with aluminium panel painted RAL9010 for fitting into modular ceilings; sup pliable with a galvanized steel butterfly regulation damper, adjustable through the cavity obtained in the central regulation screw.
KU5CT : aluminium circular diffuser painted RAL 9010 for ceilings with automatically adjusting cones without power supply but by using a thermostatic return spring to optimize the direction of the air flow; central guide in galvanized steel; predisposed for connecting to a plenum or a flexible duct; available as standard model and version complete with aluminium panel painted RAL 9010 for fitting within modular ceilings.
KU6: circular aluminium diffuser painted RAL9010 for use in ceilings with manually adjustable cones to optimize the direction of the air flow; ABS milimetric regulation central screw; predisposed for connection to a plenum or a flexible duct; can be supplied with 3 segment regulation damper, manually adjustable without the use of tools but simply by rotating the central cone; available as standard model or complete with aluminium panel painted RAL 9010 for fitting within modular ceilings.
KU8: circular aluminium diffuser for use in ceilings with manually adjustable cones to optimize the direction of the air flow; external cone in galvanized steel painted RAL 9010, internal cones in aluminium painted RAL 9010, ABS milimetric regulation central screw; predisposed for connection to a plenum or a flexible duct; complete with butterfly regulation damper in galvanized steel incorporated in the structure of the external cone and adjustable using a screw-driver through the cavity obtained in the central regulation screw;
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU 5 CT
SERIESVERSION WITH AUTOMATIC REGULATION
WITH THERMOSTATIC SPRING
The KU5 CT diffusers allow to automatically regulate the cones in the summer or winter position without the need of a technician. The work without any auxiliary power (e.g.. electrical power supply) and do not require any maintenance. The movement of the intermediate cones is controlled by means of a special shape remembering spring who's cycle of use determines the position of the cones in relations to the temperature. In this way the flow of air is controlled in relation to the temperature, enabling the intermediate cones to be always in the optimal position, both when in the cooling and heating faze.The memory spring varies its extension within a temperature range of 14°C and 40°C.The minimum lasting time of the spring is 100,000 cycles. A cycle is given from an extension followed by a compression of the spring. If, for example, we consider to be in the position to start the system in the morning and to turn it off in the evening, the spring will last o average about 270 years. The drawings shows the two positions at full extension and full compression of the spring, the 0% position in cooling conditions
d 100% i i i h i di i and 100% position in heating conditions.
Externsion of the spring in relation to the temperature in the transition from cooling to heating
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diameter 160diameter 200diameter 250diameter 315Available also on flat panel for modular ceiling
or "fineline" version
ADJUSTABLE CONES CIRCULAR DIFFUSERS KU 5 CT
SERIESVERSION WITH AUTOMATIC REGULATION
WITH THERMOSTATIC SPRING
Version with single spring
diameter 355diameter 400diameter 450diameter 500
Version with three springs
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KUF5
KUF6 SERIESFINELINE VERSION
Neck diameter Panel For support of
Versions
OVERVIEWThe KUF5 and KUF6 series diffusers are conceived for fitting within modular ceilings with a shaped panel. They are built in different versions for the various types of applications and ceiling pattern.They are composed by a adjustable cones diffusers, series KU5 and KU6 and of a carbon steel sheet pressure shaped panel.
Counter ceiling version with 15mm supports
Counter ceiling version with 24mm supports
355 670x670 24
250 670x670 24315 670x670 24
160 670x670 24200 670x670 24
200 595x595 24250 595x595 24
315 595x595 15160 595x595 24
200 595x595 15250 595x595 15
160 595x595 15
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diameter 160diameter 200diameter 250
ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2S
KU6S SERIESVERSION WITH SEGMENT DAMPER
Available both series KU2S and KU6S
OVERVIEWThe KU2S and KU6S series diffusers are equipped with segment regulation damper that can be adjusted for the outside acting on the central cone.This solution presents to fundamental advantages:- less noise generated from the damper and the air flow, more even inside the diffuser; - regulation without the use of tools
KU2S version also on 595x595 flat panel
for modular ceilings
KU6S version also on 595x595 flat panel
for modular ceilings and of "fineline" panel
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SUMMER REGULATION
ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
SELECTION
SELECTION METHODUsing the diagram shown below it is possible to make a first selection of the diffuser on the basis of the air flow. Saying so, it is advised to verify, using the diagrams of the technical data shown in the following pages, the actual compliance of the choice made with the specific use intended for the diffuser.
CONE REGULATIONThe technical data considers two regulation positions for the diffuser cones, "summer" and "winter".
Summer regulationThe summer regulation corresponds to the lowering of the central cones up to almost 15mm below the actual height of the ceiling.This regulation achieves a fresh air horizontal throw which, supported by the coanda effect flows along the ceiling
WINTER REGULATION
0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000
KU … 630
KU … 500
KU … 450
KU … 400
KU … 355
KU … 350
KU … 315
KU … 300
KU … 250
KU … 200
KU … 160
KU … 150
KU … 100
Air flow m³/h
supported by the coanda effect, flows along the ceiling, gradually mixing with the air in the room therefore avoiding air currents forming with the occupied area.Winter regulationThe winter regulation corresponds to the lifting of the central cones up to almost 15mm above the actual height of the ceiling. This regulation drives the hot air directly towards the occupied area, avoiding any different air temperature layers from forming.
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
ACOUSTIC DATA
neck diameter 100mm Sound power neck diameter 150mm Sound power
neck diameter 160mm Sound power neck diameter 200mm Sound power
winter winter
summer summer
neck diameter 250mm Sound power neck diameter 300mm Sound power
neck diameter 315mm Sound power neck diameter 350mm Sound power
winter winter
winter winter
summer summer
summersummer
winter winter
summer summer
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
ACOUSTIC DATA
neck diameter 355mm Sound power neck diameter 400mm Sound power
neck diameter 450mm Sound power neck diameter 500mm Sound power
winter winter
summer summer
Data measured in reverberation chamber in accordance with international standards:ISO 3741 1999: Acoustic - determination of sound power levels of noise sources using sound pressure - Precision methods for reverberation rooms
ISO 5135 1997: Acoustic - determination of sound power levels of noise from air-terminal devices ; air terminal units; dampers and valves by measurement in a reverberation room.
The data presented does not consider the attenuation given by the area of installation. This attenuation is normally between 6 and 10 dBA and is determined by the room size, the shape of the environment and the interior features.
neck diameter 630mm Sound power
winterwinter
winter
summer summer
summer
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
PRESSURE LOSSES
neck diameter 100mm Pressure drop neck diameter 150mm Pressure drop
neck diameter 160mm Pressure drop neck diameter 200mm Pressure drop
winter winter
summer summer
neck diameter 250mm Pressure drop neck diameter 300mm Pressure drop
neck diameter 315mm Pressure drop neck diameter 350mm Pressure drop
winterwinter
winter winter
winter winter
summer summer
summer summer
summer summer
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
PRESSURE LOSSES
neck diameter 355mm Pressure drop neck diameter 400mm Pressure drop
neck diameter 450mm Pressure drop neck diameter 500mm Pressure drop
winterwinter
summer summer
fluid dynamic analysis carried out at
Data obtained by CFD mathematical model in virtual test chamber operating in accordance with the international standard:ISO 5219 1984: Air distribution and air diffusion - Laboratory. Aerodynamic testing and rating of air terminal devices.
neck diameter 630mm Pressure drop
winterwinter
winter
summer summer
summer
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ADJUSTABLE CONES CIRCULAR DIFFUSERS
KU2
KU 5
KU 6
KU 8
SERIES
AERAULIC DATA
neck diameter 100mm Throw neck diameter 150mm Throw
neck diameter 160mm Throw neck diameter 200mm Throw
neck diameter 250mm Throw neck diameter 300mm Throw
neck diameter 315mm Throw neck diameter 350mm Throw
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
AERAULIC DATA
neck diameter 355mm Throw neck diameter 400mm Throw
neck diameter 450mm Throw neck diameter 500mm Throw
Data obtained from CFD mathematical model in virtual test chamber operating in isothermal conditions in accordance with the international standard:ISO 5219 1984: Air distribution and air diffusion - Laboratory. Aerodynamic testing and rating of air terminal devices.
L (m) horizontal distance in metres from the centre of the diffuserVx (m/s) maximum speed in the air stream
neck diameter 630mm Throw
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
AERAULIC DATA
neck diameter 100mm Vertical throw ΔT= 10 C neck diameter 150mm Vertical throw ΔT= 10 C
neck diameter 160mm Vertical throw ΔT= 10 C neck diameter 200mm Vertical throw ΔT= 10 C
neck diameter 250mm Vertical throw ΔT= 10 C neck diameter 300mm Vertical throw ΔT= 10 C
neck diameter 315mm Vertical throw ΔT= 10 C neck diameter 350mm Vertical throw ΔT= 10 C
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ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
AERAULIC DATA
neck diameter 355mm Vertical throw ΔT= 10 C neck diameter 400mm Vertical throw ΔT= 10 C
neck diameter 450mm Vertical throw ΔT= 10 C neck diameter 500mm Vertical throw ΔT= 10 C
Data obtained from CFD mathematical model in virtual test chamber operating in heating conditions with ΔT = 10 ° C in accordance with the international standard:ISO 5219 1984: Air distribution and air diffusion - Laboratory. Aerodynamic testing and rating of air terminal devices.
H1 (m) vertical distance in metres from the centre of the diffuser at which there is the inversion of the direction of air
neck diameter 630mm Vertical throw ΔT= 10 C
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-- = Without regulation damperS = With segment regulation damper
KU2
KU2-PE
with steel regulation mechanism
Nominal diameter
200
Quick fixing panel 595x595 in ABS
200
ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
HOW TO ORDER
Adjustable cone diffuser in aluminium
Adjustable cone diffuser in ABS
-- / S
Nominal diameter
Nominal diameter
KUF5 -- / CTA/B/C 200
Adjustable cone diffuser in aluminium with steel regulation mechanism version on fineline panel
-- = Manual regulation with milimetric screwCT= Automatic regulation with thermostatic spring
Nominal diameter
A = panel 595x595 for 15mm support
B = panel 670x670 for 24mm supportB = panel 595x595 for 24mm support
Adjustable cone diffuser in aluminium
-- = Manual regulation with milimetric screwCT= Automatic regulation with thermostatic spring
versione su pannello piatto 595x595
CT= Automatic regulation with thermostatic spring-- = Manual regulation with milimetric screw
KUT5 -- / CT 200
Nominal diameter
with steel regulation mechanism
KU5 -- / CT 200
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version on flat panel 595x595
-- = Without regulation damperS = With segment regulation damper
Nominal diameter
KU6 -- / S 200
Adjustable cone diffuser in aluminium with regulation and milimetric screw in ABS
ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
HOW TO ORDER
-- = Without regulation damperS = With segment regulation damper
Adjustable cone diffuser in aluminium with regulation and milimetric screw in ABS
Nominal diameter
KUF6 A/B/C -- / S 200
A = panel 595x595 for 15mm supportB = panel 595x595 for 24mm support
-- = Without regulation damperS = With segment regulation damper
B = panel 670x670 for 24mm support
Nominal diameter
Adjustable cone diffuser in aluminium with regulation and milimetric screw in ABSversion on fineline panel
KUT6 -- / S 200
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Nominal diameter
KUT8 200
KU8 200
Adjustable cone diffuser in aluminium
version on flat panel 595x595
with incorporated butterfly damper
with regulation and milimetric screw in ABS
ADJUSTABLE CONES CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
SERIES
HOW TO ORDER
Adjustable cone diffuser in steel/aluminium
Nominal diameter
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CIRCULAR DIFFUSERS KU2
KU 5
KU 6
KU 8
KU 9
SERIES
INSTALLATION EXAMPLES
FITTING WITH PLENUM
FITTING TO DUCT FITTING WITHFLEXIBLE DUCT
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KU2-KE Set of 3 clips for fitting to ceilings of KU2 diffuserssingle model for all diameters
KU5KD Set of 3 clips for fitting to ceilings of KU5/6/8/9 diffusersavailable for diameters 150 to 315specify diameter at order stage
KUDC Connection collar with brackets
CIRCULAR DIFFUSERS KU2 KU 5
KU 6
KU 8
KU 9
SERIES
ACCESSORIES
available for diameters 160 to 315 includedspecify diameter at order stage
KUSF Connection collar with bracketswith regulation damper included available for diameters 160 to 315 includedspecify diameter at order stage
SF Serranda di taratura a farfalla diffusori KU5/6available for all diametersspecify diameter at order stage
SB Collection damper forKU5/6/9 diffusersavailable for diameters 100 to 500 includedspecify diameter at order stage
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PLENUM FOR CIRCULAR DIFFUSER PP 60
SERIESOVERVIEW
DE senza serranda di taratura
B x B
PLENUM :The PP60 plenums, also named "calm cases", allow the correct entry of air in the neck of the diffuser thus ensuring that the throw of air in the room is homogenous along all the circumference of the diffuser.
Materials :PP 60 standard plenum : galvanized steel sheet. Insulation: expanded polyethylene certified for the reaction to fire according to Italian class 1.
Versions :Made from insulated steel sheet with expanded polyethylene, ideal for the supply of air, and in simple sheet steel normally used for air extraction.
Accessories:Regulation damper and equalizing net in the connection of the plenum.
S [mm]
mm
D EN° of
connection
mm mm
B C
mm
nominal deck
diameter mm mm mm
A
100 102 200 200 65 65 1 96125 127 225 225 90 60 1 121150 152 250 250 70 70 1 146160 162 250 250 90 60 1 156200 202 300 300 90 60 1 196250 252 350 350 90 60 1 246300 302 400 400 90 60 1 296315 317 400 400 90 60 1 311350 352 450 450 90 90 1 346355 357 450 450 90 90 1 346400 402 500 500 90 90 1 396450 453 550 550 100 100 1 446500 503 600 600 100 100 1 496630 633 730 730 100 100 1 600
ØS
Serranda di taratura
Leva di comando per serranda di taratura
Rete equalizzatrice
C x
C
ØA
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