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Linear DiffusersSquare DiffusersLuminaire DiffusersSwirl DifffusersCircular DiffusersJet DiffusersAir Valves
DIFFUSERS
ssers
rs
2
www.waterloo.co.uk Tel: +44 (0)1622 711500
Why Waterloo Reliability
Innovation
Symbols Used
Vt
Vn Vo Face Velocity Vr Room Air Velocity qv
3
Ps Lw
LWA W
veff
Pd
3
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
ContentsDIFFUSERSLinear Diffusers
4
6
7
LCS Linear Slot Diffusers
Plenum Chambers
Luminaire Diffusers
Square Diffusers
24
DFA Louvred Face Diffusers
29
32
33
37
Swirl Diffusers39
SDFS-P Perforated Face Swirl Diffusers
43
44
47
Circular Diffusers
Jet DiffusersWDJ Drum Jet Diffusers
62
63
4
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Introduction
ENDS
Features
included
throw left throw
Vertical throw
Selection Criteria
Noise level is based on diffuser sound
R
No of Slots
EndsFinish
No of Slots
EndsFinish
ORDER EXAMPLEORDER EXAMPLE
2 3
-3 -2
S2 S3 S4
cutout
cutout73
32 67
Dim E + 52
C
Plenum l/SDim E
35Spi
got
Dia
met
er65
BA
D
AIR FLOW RATE l/s per m length
Throw (m)Vt = 0.5m/s
dBA LEVEL
diffusion &Horizontal
diffusionHorizontal
exhaust airExhaust
300
400
500
600
700
12 6055
50-25
25-12.5
12.5-6.25
2.5-1.25
100-5075-37.5
1
2
3
4
504540353025
20
15
10987
6
5
4
3
2
200
1009080
70
60
50
40
30
20
PRESSURE DROP (Pa)
Nº OF SLOTS
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Introduction
ENDS
Features
Selection Criteria
Noise level is based on diffuser sound
R
9676
9962
No of Slots
EndsFinish
No of Slots
EndsFinish
ORDER EXAMPLEORDER EXAMPLE
2 3
-3 -2
7 7Stack length (excl ends) = nominal
7 7
Flange Thickness
Dim F
60
Dim CDim D
Dim ADim B12
0
25
Dim E + 52
Plenum l/SDim E
35Spi
got
Dia
met
er
AIR FLOW RATE l/s per m length
Throw (m)Vt = 0.5m/s
dBA LEVEL
diffusion &Horizontal
diffusionHorizontal
exhaust airExhaust
300
400
500
600
700
12 6055
50-25
25-12.5
12.5-6.25
2.5-1.25
100-5075-37.5
1
2
3
4
504540353025
20
15
10987
6
5
4
3
2
200
1009080
70
60
50
40
30
20
PRESSURE DROP (Pa)
Nº OF SLOTS
6
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
High Flow DiffuserHF IntroductionThe Waterloo High Flow diffusers are designed to give exceptional performance and the visual appearance of an architectural shadow gap that has become a very desirable design feature within buildings.High Flow Diffusers are available in two variants: HFC (High Flow Coanda), which is usually ceiling mounted, providing a horizontal throw through the Coanda effect; and HFD (High Flow Directional) which is generally mounted in a wall for directional horizontal projection of air into a space or provide a coanda throw if positioned close to a horizontal surface.The High Flow diffusers are designed to handle a range of air capacities from low to high volumes. It features an excellent air distribution pattern to eliminate draughts in the occupied zone. Available as a single slot and multi sections for continuous linear runs. HFC and HFD are manufactured using aluminum extrusions and feature easily adjustable hidden air pattern control elements.The standard bordered version is available with a RAL polyester powder coated border with black internals. The Plasterline version (PL) is available when a plastered in product is required, the internals of the products are finished in black to maintain the shadow gap appearance.Product DescriptionHFC High Flow CoandaHFD High Flow DirectionalHFC-PL High Flow Coanda PlasterlineHFD-PL High Flow Directional Plasterline Features• High capacity• Strong coanda pattern for best performance• Hidden control elements• Continuous joint detail for long runs.• 3 slot sizes availableFinishes• HFC/DPPG9010 (RAL 9010 Gloss - 80% Gloss White)PPM9010 (RAL 9010 Matt - 20% Gloss White)PPM9006 (RAL 9006 Matt - 30% Gloss Silver) Other colours available on request• HFC/D-PLAnodised black onlySizes3 standard slot sizes are available 25mm, 40mm and 60mm, standard module lengths are 1500mm.
Selection Criteria2.7m ceiling height, increase throw by 1m for every increase of 1m in ceiling height. Horizontal throw is based on 10°c cooling.Selection Example HFC/40/1000Total air flow rate = 130 l/sMaximum throw = 7.2mPressure drop = 20PaSound = 36dBA
HFC/25/1800/PPM9010/ENDSTypeSlot sizeLengthFinishEnds caps
Order exampleOrder example
HFC HFD
HFC - PL HFD - PL
Performance Nomogram
C
AB(STD)
DD + 12 mm
C
C
AB
(STD
)
DD
+ 1
2 m
m
AB
(PL)
DD
+ 1
2 m
m
C
A B (PL)
DD + 12 mm
AIR FLOW RATE l/s per m length
MAXIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.10 m/s (Vt = 0.25 m/s)
MEDIUM RADIUSOF DIFFUSION (Horizontal)
V r = 0.15 m/s (Vt = 0.5 m/s)
VERTICAL PROJECTIONVt = 0.25 M/S
dBA LEVEL
diffusion &Horizontal
diffusionHorizontal
exhaust airExhaust
300
400
500
600
700
25
60
40
25
20
12 6055
50-25
25-12.5
2.5-1.25
100-5075-37.550
4540353025
12
10
876
5
4
3
2
1
15
10
9
876
4
23
5
1
1
20
15
10987
6
45
23
200
1009080
70
60
50
40
30
20
PRESSURE DROP (Pa)
12.5-6.25
Size in mm
Dim Size 25 40 60
A 25 40 60
B (STD) 45 45 45
B (PL) 55 55 55
C 60 60 60
D 88 103 123
7
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Linear Slot DiffusersIntroduction
CS diffusers are suitable for all commercial and industrial
diffuser
Ends
ED Features
Finishes
No of SlotsFinish
ORDER EXAMPLE
Slots Dim E Dim F
46 34
2 Slot 72
3 Slot
4 Slot
6 Slot 236
7 Slot 274 263
No of slots
Style 2 3 4 6 7
CS-F
CS-P
CS-J
Dim F
Riveton siteby others
Riveted plenum mounting Type PLS
(Access required both sides)
Standard plenum mounting Type PB
Dim E
50
CS-F
CS-J CS-M
CS-M TEG CS-S & EF
CS-TW
CS-PDim B
Dim C
Dim D
Dim B
Dim C
Dim D
Dim B
Dim C
Dim D
Dim A
Dim C
Dim D
Dim A
Dim B
Dim D-2Dim D
Dim A
20
20
5.18
5
20
80
5.18
03
8
61
20
Dim A
20
Dim A20
5.1808
5. 1
5. 185
5. 188. 1 03
Dim B
Dim C
Dim C
Dim D
Dim A
Dim B
Dim C
Dim D
Dim A
Dim B
20
8
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Linear Slot DiffusersCS-F / CS-P / CS-J / CS-M / CS-S&E / CS-TW / CS Plank
DiffuserType
Dimension ReferenceNo of slots
1 2 3 4 5 6 7 8
CS-F
Dim A = O/A Face Flange Width 76 114 152 190 228 266 304 343
Dim B = Ceiling Cutout Width 57 95 133 171 209 247 285 324
Dim C = O/A Stack Width 45 84 122 160 198 236 274 312
Dim D = Outside Stack Width 40 79 117 155 193 231 269 307
CS-P
Dim A = O/A Face Flange Width 56 95 133 171 209 247 285 323
Dim B = Ceiling Cutout Width 50 89 127 165 203 241 279 317
Dim C = O/A Stack Width 45 84 122 160 198 236 274 312
Dim D = Outside Stack Width 40 79 117 155 193 231 269 307
CS-J
Dim A = O/A Face Flange Width 70 108 146 184 222 260 298 337
Dim B = Ceiling Cutout Width 57 95 133 171 209 247 285 324
Dim C = O/A Stack Width 45 84 122 160 198 236 274 312
Dim D = Outside Stack Width 40 79 117 155 193 231 269 307
CS-M
Dim A = O/A Face Flange Width 46 84 122 160 198 236 274 313
Dim B = Ceiling Cutout Width 48 86 124 162 200 238 276 315
Dim C = O/A Stack Width 67 105 143 181 219 257 295 334
Dim D = Outside Stack Width 40 79 117 155 193 231 269 307
CS-M
TEG
Dim A = O/A Face Flange Width 46 84 122 160 198 236 274 313
Dim B = Ceiling Cutout Width 48 86 124 162 200 238 276 315
Dim C = O/A Fitting Lug Width 56 94 132 170 208 246 284 323
Dim D = Outside Stack Width 40 79 117 155 193 231 269 307
CS-S
&
E-F
Dim A = O/A Face Flange Width - 114 152 190 228 266 304 343
Dim B = Ceiling Cutout Width - 95 133 171 209 247 385 324
Dim C = O/A Stack Width 40 79 117 155 193 231 269 -
Dim D = Outside Stack Width - 84 122 160 198 236 274 312
CS-TW
Dim A = O/A Face Flange Width 184 223 261 299 337 375 413 451
Dim B = Ceiling Cutout Width 185 224 262 300 338 376 414 452
Dim C = O/A Stack Width 45 84 122 160 198 236 274 312
Dim D = Outside Stack Width 40 79 117 155 193 231 269 307
FLAT END CAPS
Diffuser Style
Dim L1 Dim L2 Dim L3
CS-MNominal Length
Nominal Length - 6
Nominal Length + 2
CS-M TEG
Nominal Length
Nominal Length - 6
Nominal Length + 2
L1 = Nominal length = O/A Flat ends
L3 = Ceiling opening lengthL2 = Inside stack length
Dummy hanging bracket fixing available for 1 to 8 slot
Plasterboard bracket fixing available for 1 to 6 slot
Typical PCE Settings
Standard CS Mitred Corner
CSP Plaster Frame
003
300
Angle
750X
X
StandardDiffusers are supplied with flow control vanes in lengths up to 750mm (to suit diffuser length).
Please note: CS-P requires that the ceiling cut out is exactly as described by 'Dim B' to avoid fitment issues due to the small dimension of the over hang of the border.
SpecialTo provide finer control of the air pattern, flow control vanes may be supplied in any specified length.
CS Plank(Typical size is 1200 x 150 with internal 2 slot
or 1200 x 300 with internal 3/4 slot)
Internal, external or vertical air throw available, please
specify on order.
External
Internal
9
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Diffuser Style Dim L2 Dim L3 Dim L4
CS-F+ 3
CS-P+ 3 + 36
CS-J+ 3
+ 3
+ 6 + 2 + 6
Diffuser Style Dim L2 Dim L3 Dim L4
CS-F- 39
CS-P- 7
CS-J- 33 - 24
- 39
Diffuser Style Dim L2 Dim L3 Dim L4
- 6 + 2
Dim L3 = Ceiling opening length
Dim L4 = O/A face flange length
Dim L2 = Outside stack lengthDim L1 = Nominal length = inside stack
L4 = Ceiling opening length
L1 = Nominal length = O/A face flange
L3 = O/A stack lengthL2 = Inside stack length
L4 - Ceiling opening lengthL1 = Nominal length - O/A Flat ends
L3 - O/A diffuser LUG lengthL2 = Inside stack length
-3 -2
Linear Slot Diffusers
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Linear Slot Diffusers
AIR FLOW RATE l/s per m length
MAXIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.10 m/s (Vt = 0.25 m/s)
MEDIUM RADIUSOF DIFFUSION (Horizontal)
V r = 0.15 m/s (Vt = 0.5 m/s)
VERTICAL PROJECTIONVt = 0.25 M/S
dBA LEVEL
diffusion &Horizontal
diffusionHorizontal
exhaust airExhaust
300
400
500
600
700
25
2012
12 6055
50-25
25-12.5
12.5-6.25
2.5-1.25
100-5075-37.5
1
2
3
4
87
6
5
504540353025
10
8765
4
3
2
1
12
10
876
4
3
2
1
15
10
9
8
7
6
5
4
3
20
15
10987
6
5
4
3
2
200
1009080
70
60
50
40
30
20
PRESSURE DROP (Pa)
Nº OF SLOTS
MINIMUM RADIUSOF DIFFUSION (Horizontal)
V r = 0.25 m/s (Vt = 0.85 m/s)
Selection Example
(1Way Throw)
Selection Example
(2Way Throw)
5
Selection Criteria
Noise level is based on diffuser sound
VrVt
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Linear Slot DiffusersLCSIntroduction
LCS can be combined with the standard CS
Ends ED Features
Finishes
No of SlotsFinish
ORDER EXAMPLEORDER EXAMPLE
Dimensions
AIR FLOW RATE l/s per m length
MAXIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.10 m/s (Vt = 0.25 m/s)
MEDIUM RADIUSOF DIFFUSION (Horizontal)
V r = 0.15 m/s (Vt = 0.5 m/s)
VERTICAL PROJECTIONVt = 0.25 M/S
dBA LEVEL
diffusion &Horizontal
diffusionHorizontal
exhaust airExhaust
300
400
500
600
700
25
2
3
4
2012
12 6055
50-25
25-12.5
2.5-1.25
100-5075-37.550
4540353025
10
8765
4
3
2
1
12
10
876
5
4
3
2
1
15
10
9
8
7
6
5
4
3
20
15
10987
6
5
4
3
2
200
1009080
70
60
50
40
30
20
PRESSURE DROP (Pa)
MINIMUM RADIUSOF DIFFUSION (Horizontal)
V r = 0.25 m/s (Vt = 0.85 m/s)
12.5-6.25
Nº OF SLOTS
Selection Criteria
Noise level is based on diffuser sound
VrVt
Reduction-3 -2
‘B’
‘A’ 5LCS-F
‘B’
‘A’ 1.5LCS-P
‘B’
‘A’ 1.8LCS-J
‘A’ 30LCS-TW
‘B’
‘A’ 30LCS-M
Number of Slots
LCS-F 2 3 4
LCS-J 2 3 4
2 3 4
LCS-P 2 3 4
96
2 3 4
223 299
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Linear DiffusersIntroduction
multi-slot 2 way diffusers may be adjusted to suit site
Ends
ED Features
requirements
adjustment of air diffusionFinishes
No of SlotsFinish
ORDER EXAMPLEORDER EXAMPLE
DSL
DSL-D
35 -
60
25CB
A
25
BC
67
A
PivotLine
300
400
500
600
700
20
10
5
1
50
1
2
3
4
8
7
6
5
37
45
53
2910
20
30
5
3
2
5
10
20
200
10090
80
70
60
50
40
30
20
AIR FLOW RATE l/s per m length
MAXIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.10 m/s (Vt = 0.25 m/s)
MINIMUM RADIUSOF DIFFUSION (Horizontal)
Vr = 0.25 m/s (Vt = 0.85 m/s)
dBA LEVEL
diffusion &Horizontal
exhaust air
PRESSURE DROP (Pa)
Nº OF SLOTS
Selection Criteria
Noise level is based on diffuser sound
VrVt
A C
46
DSL-2
DSL-3
DSL-4
222
DSL-6 237 279
DSL-7
336
DSL-D22
DSL-D23
DSL-D33 237
DSL-D34 327
DSL-D44
Dimensions
DSL-D
DSL
-3 -2
slots in each direction
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Linear Fan Coil Diffusers
Selection Criteria
r
Introduction
Ends Features
Finishes
WidthFinish
ORDER EXAMPLEORDER EXAMPLE
-4 +2 +3
WidthWd
X Y
FCD2 FCD2
236 244
264 294
336 344
364 394
436 444
FCD
2 4 -
4 7 - - - -
6 3 6 -
4
6 29
27 33
432 2 3 -
3 4 -
3 2 4 -
4 6 3
3 6
6 33 4
7 36 34
9 6 36
7
792 3 6 27
3 7
936 4 32 3 6 29
4 9 34 3 7
4 33
6 37 4
7 39 37
6
6
Way
hr
ow
Way
hr
ow
2 W
ay
hrow
2 W
ay
hrow
P s S
uly
P s S
uly
P s E
trac
t
P s E
trac
t
L w
dA
L w d
A
FCD1Y
56
WdX
FCD2Y
56
WdX
Y
Nom. L + 30Nom. L
(FCD1)
Nom. L + 12
FaceView
Left hand end capThrow direction Right hand end cap
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Linear DiffusersPlenum ChambersIntroduction
terminal air resistance is very low relative to the
Low-Line Plenum chamberSE TE EE
Circular Connection
Installation
Plenum Chamber Width
Entry
ORDER EXAMPLE
Spi
got
diam
eter
+ 1
00 m
m
50
Hei
ght
6535
Width
Typical
543
2
1
Pivo
tLi
ne
Pivo
tLi
ne
450
500
600
20
64
2
10
1
125Ø
200Ø
250Ø
315Ø
400Ø
500Ø
160Ø
100
150
200
250
400
450
500
600
300
350
1000
900
800
350
300
700
600
500
450
400
250
200
150
100
600
500
450
200
250
300
350
400
100
400
350
3008 slot
250
200
150
100
50
40
7 slot
6 slot
5 slot
4 slot
3 slot
2 slot
1 slot
50
60708090
100
150
200
250
300350400450500
600
Spigotdiameter(mm)
rate (l/s)Air flowSpigot air
velocity(m/s)
Width(mm)
Height(mm)
Plenum dimensions
Width(mm)
Height(mm)
Rectangularor square spigot
Sta
ndar
d CS
Slo
t W
idth
s
Spigot Air VelocitySelection Guide
m/s dBA2.0 252.5 303.0 353.5 404.0 45
Example
pressureDiffuser
loss (Pa)
Diameter 97 247 397
22 92 229
Low-Line
FDC
installation within
FDQ
www.waterloo.co.uk Tel: +44 (0)1622 711500
DiffusersAdjustable Curved Vane DiffusersIntroduction
to any increment between the minimum and
is recommended that ACD diffusers are not located
dimension
dimension
Features
Finishes
Selection CriteriaPerformance data is based on diffusers mounted in a
w
ACD2
Patterns
SF
25
Sta
ck s
ize
= d
uct
size
-19
Sta
ck s
ize
= d
uct
size
-19
275
16T25T32T
25T16T
32T
27
25
Nom
inal
duc
t &
diff
user
siz
e
Nom
inal
duc
t &
diff
user
siz
e
5
25T32T
16T25T32T
50
OptionalOBSS / ED
Duct width
Finish
ORDER EXAMPLE
25
30
40
50
100
150
200
300
400
500
1000
1500
6.05.0
4.0
3.0
2.0
1.0
6.05.0
4.0
3.0
2.0
1.0
6.07.0
5.0
4.0
3.0
2.0
6.07.0
10.0
5.0
4.0
3.0
2.0
1.0
1
5
10
20
250
300
400
500
600
1.0
4.0
3.0
2.0
1.0
0.5
61
53
45
37
29
1
5
10
20
0.5
1.0
2.0
3.0
4.05.06.07.08.0
1
5
10
20
1
5
10
20
250
300
400
500
600
Xs
XsX l Xs
XlXl
Xl = Long ThrowXs = Short Throw
Total AirFlow Rate
(l/s)
NominalDuct
Width (mm)
NominalDuct
Height (mm)Throw (m) V = 0.4 m/s Static pressure (Pa)
FaceVelocity(m/s)
PIVO
T LI
NE
dBALevel
6 27 28 25 25
FREE JET (VANES AS BELOW)PERFORMANCE AS NOMOGRAM
Diffuser vane setting
2025 25
CEILING JET (VANES AS BELOW)PERFORMANCE THROW = Tnom x 2.5
PRESSURE LOSS = Pa nom x 3 NOISE LEVEL dBA nom + 11dB
Closed
ACD4 ACD3 ACD2 ACD1 ACD1 ACD2 ACD3 ACD4
Diffuser vane setting
t
ACD1 ACD3ACD2 ACD4
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Luminaire DiffusersIntroduction
Features
Finishes
Standards
Performance
FinishProject Reference
ORDER EXAMPLEORDER EXAMPLE
120
50
390 Ø
157
596 o/a486 i/s recess
600 grid centres
Supply with 2m ofcable pre-wired tofitting
Pivot measurement point(remove light diffuser for access)
6.5mm cable grommet for mainspower and emergency powerpack connection
575 x 575
5
255
Quick fix plenum clips
596
x 59
64 WayPattern
6 24
w - - - 26 33
3 WayPattern
22
w - -
2 WayPattern
w - 27 33
Pressure 4 6
2 3 4
Lw
URF
C W F 2 3 4
0˚
60˚
90˚
60˚
90˚
Photometric Data
30˚30˚
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Louvred Face DiffusersIntroduction
DE
diffuser face
Features
Finishes5
75
Nom. + 145
Nom. - 3Nom. + 75
45
Nom. - 6
Nom. + 75
Nom. + 74
Nom.
45 60
Nom. + 70
784.
8
12
Nom. + 38Nom.
Nominal + 2 i/s stack
Nominal - 16 o/s damper
DF-T8 Frame
OBSS damperOperated by screwdriver after
removing core. Suitable for all types
8
DF-T16 Frame
16
OBLL damperLever operation at diffuser face.
Suitable for core 41 only
573 O/A for T20 or 585 O/A special if T10
Duct width
Finish
ORDER EXAMPLEORDER EXAMPLE
DFA
Selection Criteria
DF
575
Nom. + 145
Nom. - 3Nom. + 75
45
Nom. - 6
9
34 76
Lw - - - 29 33
Lw 22 26 29 33 37
23
Lw 32 37 39 44
33
422
Lw 33 37 42 44 46 49
43
79 492 964
Lw 37 44 46 49
www.waterloo.co.uk Tel: +44 (0)1622 711500
DiffusersLouvred Face Diffusers
9 67
Lw - - - 22 23
237
Lw 24 27 27 29 29
23 337
Lw 33 33 34 36 33 34 36 37
33 236
Lw 39 39 42
43 236 236 472
Lw 39 42 42 43 44 46 43 43 44 46
9 236 296 339 474
Lw 23 24 23 24 24 26
394 472 629
Lw 29 32 33 33 32 33
23 394 422 492
Lw 37 39 36 37 37
33 473 674 942
Lw 42 44 42 44 42 43
43 394 473
Lw 44 46 47 46 47 46 47 49
Selection Criteria
www.waterloo.co.uk Tel: +44 (0)1622 711500
DiffusersLouvred Face DiffusersSelection Criteria
9
34 76
Lw - - - 23 24 26
Lw - 33
23
Lw 27 34 36 37 39
33
422
Lw 32 36 39 42 43
43
79 492 964
Lw 36 43 46 49
9
34 76
Lw - - 23 24 26
Lw - 32 33
23
Lw 27 34 36 37 39
33
422
Lw 32 36 39 42 43 44
43
79 492 964
Lw 36 43 46 47
www.waterloo.co.uk Tel: +44 (0)1622 711500
DiffusersLouvred Face Diffusers
9 67
core 22
core 23
Lw - - - - - - 22
237
core 22
core 23
Lw 23 26 27 29 27 29
23 337
core 22
core 23
Lw 29 32 33 34 33 34 34 36
33 236
core 22
core 23
Lw 34 36 37 39 39 39 42
43 236 236 472
core 22
core 23
Lw 42 43 44 42 43 43 46
9 236 296 339 474
core 22
core 23
Lw 23 24 23 24 24 26
394 472 629
core 22
core 23
Lw 29 32 33 33 32 33
23 394 422 492
core 22
core 23
Lw 34 37 39 36 37 37
33 473 674 942
core 22
core 23
Lw 39 42 44 42 44 42 43
43 394 473
core 22
core 23
Lw 44 46 47 46 47 46 47 49
Core 22 Core 23
Selection Criteria
DF - core 23
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DiffusersLouvred Face Diffusers
9
67
Lw - - - - - - - 22
237
Lw 23 26 27 27 29
23
337
Lw 29 32 34 33 34 34 36
33
236
Lw 34 36 37 39 39 39 42
43
236 236 472
Lw 42 43 44 42 43 43 46
9
236 296 339
Lw 22 23 23 24
394
Lw 29 32 32
23
394 422 492
Lw 34 37 36 37 37
33
473 674
Lw 39 43 43 42
43
394 473
Lw 43 44 46 47 46
Core 26 Core 27
Selection Criteria
L
S
L
S
22
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Diffusers
9
34 76
Lw - - - - 23 24
Lw - 24 27 32
23
Lw 26 33 34 36 37
33
422
Lw 39 42 43
43
79 492 964
Lw 39 42 43 46 47
9
34 76
Lw - - - - 23 24
Lw - 24 27 29 32
23
Lw 26 33 36 37
33
63 422
Lw 42 43
43
79 492 964
Lw 39 42 44 46 47
LL
S
Louvred Face DiffusersSelection Criteria
aluminium
23
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Diffusers
9
67
Lw - - - - - - - - -
237
Lw 24 26 27 26 27 29
23
337
Lw 33 34 32 33 34
33
236
Lw 33 36 36 37 39 36 37 39
43
236 236 472
Lw 37 39 42 43 42 43 44
9
236 296 339 474
Lw - 22 23 24 24
394 472 629
Lw 27 29 29 32
23
394 422 492
Lw 33 34 36 36 37 37 37 39
33
473 674 942
Lw 39 42 42 42 43
43
394 473
Lw 42 43 44 44 46 46 47 47
Core 32 Core 33
Louvred Face DiffusersSelection Criteria
L
SS
L
L
S
24
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DiffusersLouvred Face Diffusers
A C D
294
369
Introduction
DTR Features
Finishes
9
34 76
Lw - - - -
Lw - 24 27
23
Lw 26 33 34
33
422
Lw 39
43
79 492
Lw 39 42 43
595
mm
595 mm
D
C
BA
Duct width
Finish
ORDER EXAMPLEORDER EXAMPLE
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Diffusers
Pressure 9 23 33
Volume
26 39 42
C D E
F G H J K
B
Type B
Pressure 9 23 33
Volume 62 93
- - 27 33
Pressure 9 23 33
Volume
29 33 37
Pressure 9 23 33
Volume
- 26 34
Pressure 9 23 33
Volume
29 34
26
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DiffusersLouvred Face Diffusers
Pressure 9 23 33
Volume 46 93
- - 27
Pressure 9 23 33
Volume 46 62 77 93
- - 34
Pressure 9 23 33
Volume 46 62 77 93
- - 34
Pressure 9 23 33
Volume 23 39 46
- - - 27
Pressure 9 23 33
Volume 342
- 34 37
Pressure 9 23 33
Volume 76
- 26 34
Pressure 9 23 33
Volume 76
- 26 34
Pressure 9 23 33
Volume 76
- - 27 34
Pressure 9 23 33
Volume
34
Pressure 9 23 33
Volume
- 32 36 39
Pressure 9 23 33
Volume
- 32 36 39
Pressure 9 23 33
Volume 76
- 26 29 33 36
Pressure 9 23 33
Volume
- 26 34 36
Pressure 9 23 33
Volume
- 29 33 36
Pressure 9 23 33
Volume
- 29 33 36
Pressure 9 23 33
Volume 42
- - 26 33
Pressure 9 23 33
Volume
- 29 32 36 39
Pressure 9 23 33
Volume
- 27
Pressure 9 23 33
Volume
- 27
Pressure 9 23 33
Volume
- 24 29 32 34
Type E Type J
Type D Type H
Type C Type G
Type F Type K
27
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9
67
Lw - - - - - - - - - -
237
Lw - 24 24 26 26 27 27
23
337
Lw 32 33 32 32 33 34
33
236
Lw 33 36 37 36 37 37 39
43
236 236 472
Lw 37 39 42 42 43
9
236 296 339 474
Lw - 23 23 24 24 24
394 472 629
Lw 27 29 29 29
23
394 422 492
Lw 33 34 36 36 37 37
33
473 674 942
Lw 39 42 42 42
43
394 473
Lw 42 43 44 44 44 46 47 47
Core 42
Louvred Face DiffusersSelection Criteria
L
L
S S
Diffusers
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Diffusers
Louvred Face DiffusersDFA
34 76
Lw - - - -
Pa
Lw - - - -
Pa
Lw - - - -
Pa 32 32 32 32
422
Lw - - - -
Pa 47 47 47 47
79 492
Lw - - -
Pa
34 76
Lw - - - -
Pa
Lw - - - -
Pa 37
Lw - - - -
Pa 47 47 47
422
- -
Lw - - -
Pa 67 67 67
79 492
- - -
Lw - - 22
Pa
34 76
Lw - - - -
Pa
Lw - - - -
Pa 37
Lw - - - -
Pa 47 47 47
422
Lw - - -
Pa 67 67 67
79 492
Lw - 22 23
Pa
Features
diffusionFinishes
Vt
Factor
Factor
Duct width
Finish
ORDER EXAMPLEORDER EXAMPLE
Nom. + 70
784.
8
12
Nom. + 38Nom.
29
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Diffusers
Introduction
Finishes
Dimension table
367 447CD 247
324 432
LWA 27 32Ps
LWA 27 36 42Ps 7 24
LWA 33 37Ps 7 22 27
PlenumLined
ORDER EXAMPLEORDER EXAMPLE
65
DIA.D
65
A (Nominal -3mm)
B (
Nom
inal
-3m
m)
c
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Diffusers
Introduction
O
Features
Finishes
Authority
Selection Criteria
r
curves based on Sound Power Level less
B (o/a neck)
C D
E
E
F (opening size)
A
4 way 3 way 2 way 2 way 1 way
Plenum
ORDER EXAMPLE
A C D E F
6 36 296
6 36 446
6 36 496
6 36
4 way
3 way
2 way way
4 way
3 way
2 way way
4 way
3 way
2 way way 4 way 4 way 4 way
34 Ps 9 33 9
Lw - - - - -
Ps 23
Lw - - -
Ps 23 34 7 23
Lw - 23 33 -
Ps 33 9 33 36
Lw - 26
79 Ps 43 43 9 47
Lw 26 32 29
Ps 9 33 26
Lw 43 26
Ps 44
Lw 34 32
Ps 23 7
Lw 33 27 36
Ps 33 26 36
Lw 33 43
Ps 43 9 47
Lw 37 46 44 33
Ps
Lw 37 44
Ps 23
Lw 42 47
Ps 33 36
Lw
Ps 43 47
Lw 49
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Diffusers
Aircell Diffusers
Air Volume
4 way
3 way
2 way way
4 way
3 way
2 way way
Ps 2 4
Lw - - - -
Ps
Lw - 24
Ps 22
Lw 27 46 36 33
Ps
Lw 43 43
Ps 44 66 4
Lw - 22
Ps 6 22 6
Lw 46 - 36 -
Ps
Lw 33 43 -
Ps
Lw
Ps 22 29
Lw 36 43 32
Ps
Lw 37
Ps
Lw 43 42
4 way 3 way 2 way 2 way 1 way
Introduction
O
Features
Finishes
Authority
Selection Criteria
r
B (o/a neck)
C D
E
E
F (opening size)
A
Plenum
ORDER EXAMPLE
A C D E F
3 229 296 269
6
32
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Diffusers
Aircell DiffusersPerformance
A C D E
- - -
- - -
- - 224
- - 277 299 247
- - 366 449 397
A
B
B
Type 'O' damper
ØE
50
7 7
Do/s stack
C
Type 'P' plenum
50
Ø312
Ø400
R600 neck reducer
Aircell DiffusersInstallationParticular attention has been
Aircell are manufactured from
manufactured from injection
mean that you can use
a diffuser without a
Aircell diffuser
Removable core
W X Y Z
269
Z
Y
X min
WDuct or Plenum
Damper
Diffusers
33
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Diffusers
Laminar Flow DiffusersIntroduction
frame
Features
Finishes
Nominal Width
Finish
ORDER EXAMPLE
A
LFF
LFF
Free Area
Optional LD
25
150
ØD o/s
75
Ceiling opening size = W/H -20
ØD
o/s
A75
W x H Overall
W x H Overall
Optional LD
1326
160
ØD o/s
7075A
ØD
o/s
75A
W x H Overall
W x H Overall
ØD
+ 1
35A
ØD
+ 1
25
LFM-TE = Top Entry
LFF-TE = Top Entry
LFM-SE = Side EntryLFM-EE = End Entry
LFF-SE = Side EntryLFF-EE = End Entry
D
Face dischargevelocity (Table 1)
Reduction in airstream section
area increases velocity
Near constant airstream velocity up to 2.5m from
diffuser face(Table 2)
FACE PLATEREMOVAL TOOL
LFM - Flangeless frame
PRE-DRILLED FRAMES FORMODULAR ASSEMBLY
OPTIONAL TOP, END OR SIDE
ENTRY SPIGOTSØ8mm HOLES FOR DROP SUPPORT LINK PLATES
LFF - Flanged frame
OPTIONAL LOUVRE DAMPER
Ø8mm HOLES FOR DROP SUPPORT
34
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Diffusers
Laminar Flow Diffusers
Air Flow Rate
72 432
Air Flow Rate
Unit 72 432
Air Flow Rate
Unit 72 432
D
2m
2m
2m
2m
2m
2m
2m
2m
2m
Air Flow Rate
72 432
2 2 4
2 2 4 7
2 2 3 3 4 4
Air Flow Rate
72 432
29 33
32
Selection Criteria
characterised by the tendency to reduce
between the airstream boundary and
airstream velocity is derived from time
Diffuser selection criteria will be
concentrated heat sources or where
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Diffusers
Perforated Face DiffusersIntroduction
Features
All aluminium face construction
Finishes
PatternNominal Width
Finish
ORDER EXAMPLE
Free Area
CPD
CPD 297
CPD —
CPD —
CPDE —
CPDE —
CPDE —
CPDE —
W o/aW - 52
H o
/aH
- 5
2
A x B o/snominal duct size
CPD/OBSSH - 52
ØD o/snominal duct size
CPD/LD
Ceiling opening = H - 20
132
72
5
radioradio
Installation
4 Holes 9.5Øfor drop rods
H - 100
W - 100
drop r
od ce
ntresdrop rod centres
Ceiling opening =W-20 x H -20
FLUSH
600 T Bar Centres
LAY-IN / EXPOSED T BAR
300/600/1200 Centres
CONCEALED T BAR
Drop rod fixing by others
36
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Diffusers
Perforated Face Diffusers
NominalCPD4 CPD3 CPD2
- -
CPD 4 way 3 way 2 way
X X X X X X X X X X X X X X
Air Flow Rate
m3 324 324 324
23 36 24 24 26
3 4 2 3 4 3 4 6 6 6 6 6
Air Flow Rate
m3 763 763 763 727
67
27 32 33 47 29 33 34 37 34 24
3 6 4 4 6 9 9
Air Flow Rate
m3 324 972
33 37 37 39 43 24 34 33
7 22
Air Flow Rate
m3 - - - - - - - - - - 3636
- - - - - - - - - - 337
- - - - - - - - - - - - - -
- - - - - - - - - - - - - -
- - - - - - - - - - 32 42
- - - - - - - - - -
CPD2 CPDECPD3CPD4yaw3yaw4 Exhaust2 way
Selection Criteria
Radius of diffusion is based on terminal velocities
Static Pressure Loss 7 Pa
37
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Diffusers
Perforated Face DiffusersIntroduction
connections
FeaturesEasy maintenance
Finishes
Nominal Width
Finish
ORDER EXAMPLE
596 SQUARE O/A450 SQUARE FACE OPENING
75
KRCPE LD OPTION2297
KRCPE 450 SQ OBSS OPTION
KRCPE 300 SQ OBSS OPTIONKRCP
Ø297 O/S
450 l/s NECK
6.5
KRCP 4 way throw
3 way throw
side
3 way throw short side
2 way throw throw
m3
Pa 4 4 4 4 4Lw 22 22 22 22 22
Pa 7 7 7 7 7Lw 33 33 33 33 33
PaLw 42 42 42 42 42
Pa 26 26 26 26 26Lw 49 49 49 49 49
KRCP
m3
Pa 6Lw - -Pa 4 22Lw - -Pa 9Lw 23PaLw
Pa 23Lw 46
1 way 2 waycorner
2 wayopposite
3 way 4 way Exhaust
Core Patterns
600 T Bar centres
CONCEALED T BAR
600 T Bar centres
BURGESS TYPE MOUNT
600 T Bar centres
LAY-IN / EXPOSED T BAR
Selection Criteria
Radius of diffusion is based
level is based on diffuser sound
4 way throw
Static Pressure Loss 7 Pa
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Diffusers
Perforated Face DiffusersIntroduction
Diffuser Diffuser
Diffuser
With Filter
With FilterFeatures
Short throwFinishes
MWVPD
MWVPD-RF
MWVP-RF
ORDER EXAMPLE
E S øD E
72
92
92
97
99
With Filter
m3
Ps 3 3
Lw - - - - - -
42 Ps 7 24 6
Lw 27 - 29 - 34 - - -
Ps 33 24 9
Lw - - 29 - 22 - -
69 Ps 3 44 39 3
Lw 44 29 - - 32 - - 36 23 - - - -
Ps 7 64 27 9
Lw - 39 - 44 - 32 - - - -
Ps 9 4 29 9
Lw - - 33 23 - 36 - 27 - - -
Ps 32 6 7 44 24 44
Lw 37 - 42 34 24 33 23 - 27 -
Ps 9 44
Lw 32 36 24 29 26 - - 32
Ps 22
Lw 29 33 36 33 - - 33
Ps 24 36
Lw 29 -
E E Filter S
296
296
circumference of a circle of the stated diameter
MWVP-R
Number of Directions
Finish
Selection Criteria
Noise level is based on diffuser sound
3
39
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Diffusers
Introduction
Circular face swirl diffuserSquare face swirl diffuserDuct collar
See table Finishes
Diffuser + Collar Plenum
Diffuser + Collar Plenum
use data above based on nominal
Colour Finish
ORDER EXAMPLE
SDFC SDFS
Duct mounting collar
Ceilingsupportbrackets
ØD1o/s
65H
ØG
ØA
ØD1o/s
65H
12
Edge detail to suit grid typeas shown below
To suit nominalgrid type & size
To s
uit
nom
inal
grid
typ
e &
siz
e
E *75
C50 *125 WITH QUADRANT
OPERATED FLAPDAMPERS.
20
50
F
ØD2Frame size
483,583, 733
500, 600,
750 Nom Grids
Tegular frame - T8
Tegular frame - T16
Exposed 'T' - E
Frame size 295, 495,
595, 745
300, 500, 600,
750 Nom Grids
12
8
Frame size
483,583, 733
500, 600,
750 Nom Grids
16
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Diffusers
for SDFSC E F H
97
247
397
Diameterm3 36 72 324 432
Lw Duct 39
Lw Plenum 27
Ps Duct 47
Ps Plenum
Lw Duct - 29 43
Lw Plenum - 46
Ps Duct
Ps Plenum 26 69
Lw Duct - - 32 37
Lw Plenum - - 27 34 39 43
Ps Duct 4 9 22
Ps Plenum
Lw Duct - - - 26 29 23 36 42
Lw Plenum - - 44
Ps Duct 24 29
Ps Plenum 6 24 36
Lw Duct - - - - 27 43
Lw Plenum - - - 29 32 37 42
Ps Duct 7 9 33
Ps Plenum 6 9
Lw Duct - - - - - 27 33
Lw Plenum - - - - 29 32 37
Ps Duct 3 6 24 29
Ps Plenum 4 6 36
Selection Criteria
Pressure loss data is shown in terms of static
Ducted Diffuser
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Diffusers
Perforated Face Swirl DiffusersSDFS-P
Introduction
Perforated face swirl diffuser
Duct collar
Finishes
H
A B
ØD
1
75ØD
70
SDFS-PPerforated supply diffuser Perforated extract diffuser
SDFS-P Perforated supply diffuser with WTP plenum
SDFS-P-E
(for ceiling void return only)
Frame size
Fram
e si
ze
ØD11
0Duct mountingcollar
Removableface-plate
Frame size
Fram
e si
ze
Removableface-plate
38
ØD1
Diffuser + Collar Plenum
Colour Finish
ORDER EXAMPLE
Exposed 'T' - E
300, 500, 600, 750Nom. Grid
295, 495, 595,745 o/a
27.5
5
Tegular frame - T8 Tegular frame - T16
500, 600, 750Nom. Grid
483, 573, 583, 733
21.5
500, 600, 750Nom. Grid
483, 573, 583, 733
21.5
8 16
FrameSize
FrameSize
FrameSize
42
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Diffusers
Perforated Face Swirl DiffusersSDFS-P
A H
247
247
SDFS-P
Diameterm3 72
Lw Duct 36 43
Lw Plenum 36 43
Ps Duct 42 64
Ps Plenum 23
Lw Duct 27 42
Lw Plenum 27 42
Ps Duct 27 44
Ps Plenum 36
Lw Duct 42
Lw Plenum 42
Ps Duct 33
Ps Plenum 43
Lw Duct 26 33
Lw Plenum 26 33
Ps Duct 7 26
Ps Plenum 23 36
Lw Duct 23 29
Lw Plenum 32 43
Ps Duct 6 22
Ps Plenum 26
Lw Duct 26
Lw Plenum 22 33 37 44
Ps Duct 23
Ps Plenum 6 23 39
m3
Pressure loss Pa
w
2 3
2 3 7
6 7 7 9
6 7 7 9
Selection Criteria
Ducted Diffuser
43
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Diffusers
Introduction
SDTA
Duct collar
Please note the duct collar is not required when
See tableFinishes
Colour Finish
ORDER EXAMPLE
6587
H
ØD1o/s
12
ØD1o/s
Edge detail to suit grid typeas shown below
SDTA / SDTB SDTA / SDTB
Duct mounting collar
*125 WITH QUADRANT OPERATED FLAPDAMPERS.
E *50
20
C72 50
22
F
ØD2
To suit nominalgrid type & size
To suit nominalgrid type & size
To s
uit
nom
inal
grid
typ
e &
siz
e
To s
uit
nom
inal
grid
typ
e &
siz
e
ØG
Diffuser + Collar Plenum
Nominal PlenumWidth
Plenum Plenum Duct collar H
22
343 22
443 22
22
Frame size483, 573, 583, 733
500, 600,
750 Nom Grids
Tegular frame - T8Exposed 'T' - E
Frame size 295, 495,
595, 745
300, 500, 600,
750 Nom Grids
12 8
Tegular frame - T16
Frame size483, 573, 583, 733
500, 600,
750 Nom Grids
16
44
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Diffusers
Introduction
526
526
Nominal Swirl DIA
526
1313
20
Foamgasket
Diameter Grid m3
LWA 27 36 42Ps
LWA 29 43Ps 32
LWA 22 33Ps 23
LWA 26 36
Ps 26
2
LWA 23 29 33 37 42
Ps 9 22 29
Diameter Parameter
ALWA 24
4 9
LWA 23
4 7
ALWA 29
4 9 27
LWA 24
4 6
ALWA 23 36
23
LWA 22
36
ALWA 22 42
4 7 32
LWA 22 23 24 26
4 7 22 29
Selection Criteria
metres and is based on a terminal
Pressure loss data is shown for a
Colour Finish
ORDER EXAMPLE
Duct collar
Finishes
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Diffusers
Introduction
adjustable blades
adjustable blades
Features
Finishes
Finish
ORDER EXAMPLE
ØB ceiling cutout
ØA overall
ØC neck
DE
F
Perforated Baffle
H
75
(125 with FDQ option)
FDC, FDQ damperoptions
G i/sØD1 o/s
ØD2 i/s
7563J*
*
Nom D E F G H J*
247 473 247
397 397
497 497
627 627
* Please note the total
46
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Diffusers
Ducted Diffuser
Static Pressure Loss 32 Pa
SDFCH
Dia
met
er m3 72 432
Ps Duct 3 23 62Ps
Plenum 3 27 47
Lw Duct - - - 27
Lw Plenum - - - 27
Ps Duct 22 33 66Ps
Plenum 26
Lw Duct - - - - 29 34
Lw Plenum - - -
Ps Duct 7 43Ps
Plenum 9 27 43
Lw Duct - - - 27 32 36 39
Lw Plenum - - 39 42
Ps Duct 6 9 27Ps
Plenum 6 47
Lw Duct - - - - - - 37 42
Lw Plenum - - - - - 27 34
Ps DuctPs
Plenum 22 27
Lw Duct - - - 26 32 37
Lw Plenum 26 34 37 42 47
Ps Duct 6 26 34 49Ps
Plenum 9 22 36 44 62
Lw Duct - - - - 26 34 37
Lw Plenum - - 26 34 44 47
Selection Criteria
Ps
47
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Diffusers
Vane Swirl DiffusersIntroduction
S
Room adjustable vanesE
Features
is no requirement to identify this on the order
Finishes
Lay-in
Vanes colourRoom adjustable vanesFinish
ORDER EXAMPLE
SDVS SDVC
ØD
ØA
SDVSA-V / SDVSB-V
A x A
200
225
200
B x H ØD
A x A
B x H
51,5
ØA
E +
25
SDVCA-V / SDVCB-V
SDVSA-S / SDVSB-S SDVCA-S / SDVCB-S
B1 x H1
B1 x H1
E
Air discharge - all left / all right
Air discharge - leftAir discharge - right
Air discharge - leftAir discharge - right
Air discharge left Air discharge rightSDVS SDVC
Number of vanes
E
Frame size
483,583, 733
500, 600,
750 Nom Grids
Tegular frame - T8 Tegular frame - T16Exposed 'T' - E
Frame size 295, 495,
595, 745
300, 500, 600,
750 Nom Grids
12
8
Frame size
483,583, 733
500, 600,
750 Nom Grids
16
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Diffusers
Vane Swirl Diffusers
FixingSizes 300 - 600 (inclusive) 1 central screw
Sizes 625 - 825 (inclusive) 4 screws
SDVSB-800-64SDVSB-825-64
795/823
795/
823
595/623
SDVSB-600-40SDVSB-625-40
595/
623
495
SDVSB-500-24
495
395/495595/623
SDVSB-400-16SDVSB-500-16SDVSB-600-16SDVSB-625-16
395/
495
595/
623
295
SDVSB-300-8
295
ø400/ø500ø600/ø625
SDVCA-400-16SDVCA-500-16SDVCA-600-16SDVCA-625-16
SDVCA-500-24
ø500
595/623
SDVSA-600-48SDVSA-625-48
595/
623
SDVSA-800-72SDVSA-825-72
795/823
395/495595/623
SDVSA-400-16SDVSA-500-16SDVSA-600-16SDVSA-625-16
395/
495
595/
623
ø600/ø625
SDVCA-600-48SDVCA-625-48
ø300
SDVCA-300-8
295
295
SDVSA-300-8
SDVSA-500-24
495
595
SDVCA-800-72SDVCA-825-72
ø800/ø825
595/623
595/
623
SDVSA-600-24SDVSA-625-24
ø600/ø625
SDVCA-600-24SDVCA-625-24
SDVCB-800-64SDVCB-825-64
ø800/ø825
SDVCB-600-40SDVCB-625-40
ø600/ø625
SDVCB-500-24
ø500
SDVCB-300-8
ø300
SDVCB-400-16SDVCB-500-16SDVCB-600-16SDVCB-625-16
ø400/ø500ø600/ø625
m3
- -24
Ps 6Lw -
Ps
Lw -
Ps
Lw
Ps
Lw 36 32
Ps 24 7Lw 36 -
Ps 9Lw 46 27
Ps
Lw
Ps 62 6Lw 37 27
Ps 26Lw 44 32 -
Ps 7Lw 37 26
Ps 34Lw 34
Ps 22Lw
Ps
Lw 44
Ps 43Lw 49
SDVSA SDVCA
49
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Diffusers
Vane Swirl Diffusers
SDVSA SDVCA
m3 - - 24
- - 24
- - 24
Ps 9Lw
Ps 3 4Lw - -
Ps 22 6 3 7Lw 27 - - -
Ps 34 9 4Lw 33 -
Ps 6 2 24Lw 22 -
Ps 3 32 23Lw 42 26 - 24 23
Ps 24 4 42Lw 24 27
Ps 7 66 47Lw 36 - 33
Ps 26 7 33 73 26Lw 42 36 24 42 27
Ps 3 29 27Lw 23 - 26 33
Ps 27 6 23 7 67Lw 36 42 24 42 34
Ps 42 9 36 29 34Lw 42 36 26 42 26 32 27
PsLw 47 36 32 26 46 32
Ps 22 66 22Lw 34 37 42 37 26
Ps 23 73 72 29Lw 34 46
Ps 29 93 36 37Lw 44 33
PsLw 44 37
PsLw 42
Selection Criteria
Pressure loss data is shown in terms of static
Static Pressure loss 4 Pa
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Diffusers
Perforated Face Circular DiffusersRWIIntroduction
Features
and isothermal conditions
Finishes
Short throwSelection Criteria
r
Diameter
ORDER EXAMPLE
Nom
D2 overallE K L
Corrections
Z Pressure Noise level
34 - 2
RWI
m3Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia
Ps 7Lw - -
Ps 22Lw 29 - 27
Ps 6Lw 33 26 -
Ps 22 46Lw 33 - 36 -
42 Ps 29 2Lw 33 - - -
Ps 23 9 4Lw 39 29 - 23 - -
69 Ps 33 36 2Lw 34 - 29 - - -
Ps 23 9 3Lw 37 26 - 34 - - -
Ps 37 34 6 2Lw - - -
Ps 24 9 4Lw 29 26 34 - -
Ps 33Lw 33 29 39 27 - -
Ps 22 9Lw 39 33 33 - -
Ps 36Lw 39 -
347 Ps 24Lw 43 34 24
Z
7.5
ØD1ØXØA
RWI
LK
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWI-R + UKRV
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWI + UKDVI
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Diffusers
Plain Face Circular DiffusersRWKIntroduction
Features
and isothermal conditions
Finishes
Short throwSelection Criteria
r
Diameter
ORDER EXAMPLE
Nom
D2 overallE K L
Corrections
Z Pressure Noise level
34 - 2
RWK
m3Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia
Ps 6 7Lw - -
Ps 7Lw - - -
Ps 36 27Lw - - -
Ps 39 9Lw 29 - - 26 - -
42 Ps 29 22Lw - 32 - -
Ps 23Lw 36 - - -
69 Ps 36Lw - 26 -
Ps 7Lw 32 - - -
Ps 36Lw 29 - -
Ps 7Lw 34 - 29 26
Ps 26Lw 36 26 33 29 -
Ps 39Lw 33
Ps 24Lw 39 34
347 Ps 32Lw 37
Z
7.5
ØD1Ø XØ ARWK
LK
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWK + UKDVI
W x H 50
ØD
2Z
E7.
5
ØD1ØXØA
RWK-R + UKRV
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Diffusers
Plain Face Adjustable Circular DiffusersRWVIntroduction
Features
Finishes
Short throwSelection Criteria
rNoise level is based on diffuser sound
Diameter
ORDER EXAMPLE
D2 overall E K L
RWV Vertical
m3Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia Dia
Ps 6 4Lw - - -
Ps 44Lw - -
Ps 7Lw 26 - - - -
Ps 4 26 9Lw 33 - - 37 27 - 29 -
42 Ps 42 6 24 33 4Lw 37 - - - -
Ps 42 23 9Lw 32 - - 37 27 - -
69 Ps 32 39 7Lw - - - -
Ps 23 46 22Lw - - 36 - 42 27 -
Ps 39 33Lw 27 - 33 27 39 26 -
Ps 24 24 6Lw - 39 32 24 32 - -
Ps 34 26Lw - 37 27 37 33 -
Ps 26Lw 39 32 39
Ps 47 96Lw 39 37
346 PsLw
7.5
ØD1ØXØA
RWV
LK
Horizontal Jet(Lowered Face Plate)
Vertical Jet(Raised Face Plate)
W x H 50
ØD
2
E7.
5
ØD1ØXØA
RWV + UKDVIW x H 50
ØD
2
E7.
5
ØD1ØXØA
RWV-R + UKRV
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Diffusers
Small Format Circular DiffusersIntroduction
Small format circular diffuser
Features
Robust steel construction
Finishes
Selection Criteria
tables
Projection — downward throw to a terminal velocity vt
Finish
ORDER EXAMPLE
Diffuser Diameter
DDia
m3
Lw - - 23 39Ps 2 9 37
Dia
m3 22763 94
Lw - 26 36Ps 2 9 37
Dia
m3 763
Lw - 23 34 44Ps 2 9 37
Dia
m3 -477 636 -
-Lw - 26 -Ps 4 72 -
Dia
m3
Lw - 22 32Ps 4 33
Dia
m3 22763 94
Lw - 24 36Ps 4
Dia
m3 763
Lw - 27 39Ps
Dia
m3
477 636
Lw 32Ps 32
Air Volume
Dia
m3
Lw - 23Ps 3 23
Dia
m3 22763 94
Lw - 46Ps 4 76
Dia
m3 763 --
Lw - 22 37 47 -Ps 6 23 49 -
Dia
m3 - -477 - -
Lw 32 47 - -Ps 74 - -
ØB
Diffuser O/A size
Ceiling cut out
Horizontal diffusion
face
ceili
ngD
uct
to
57 89
5
ØC
D
Vertical Projection
Duct / Diffuser size
57 89
5
ØA
face
ceili
ngD
uct
to
Min
2 x
Dia
.
- Equalisation at stub duct
with volume control at diffuser
LD - Standard
Accessories
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Diffusers
WRIntroduction
Features
Easily removable central core assembly
Core adjustment feature
Finishes
Installation
Selection Criteria
Pss
Ps s
t
Finish
ORDER EXAMPLE
WR
6
m3 263 39273
Lw 24 32 39 44Ps 24 37 72
m3 677 922224
Lw 29Ps 33 47 64
m3
Lw 37 43Ps 27 39
m3 2632292 366
Lw 39Ps 37
m3
Lw 33 39 49Ps 29 39
m3 2362 4723
Lw 33 46 62Ps 23 32 42
m3 3226
Lw 66Ps 7 23 46
24
m3 7362
Lw 46 67Ps
Projection Factor
t
Correction Factor
A C D E F G H J
6
64 74
96
6
762 6
24 246
273
24 273
CBA
DUCT
REMOVABLE CORE
A (Nominal Dia)
DH
E
FJ
C (Overall)
BG (OPENING SIZE)
Size 6 8 10 12 151821 24
23 4 5 10 20 30
4
5
10
V
Nec
k ve
loci
ty (
m/s
)n
Projection (m)
Example
Vertical Projection - Cone setting A
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Diffusers
Aircell Polymer Floor DiffusersIntroduction
Features
Finishes
ORDER EXAMPLE
Ø299 O/A
Ø200Ø211 cutoutØ225 O/A
23
Min
. Ti
le50
Max.
Til
e
129
4
WFORT WFOVT WFOIT
Ø230 O/AØ225
Ø215 slab hole
Ø200
150
4
WFORS
WFORP WFOVP
Ø 225 O/A
Ø 211 cutoutØ 200
115
ctr
of
spi
got
23 M
in t
o 50
Max
Tile
Thi
ckne
ss
4.5
2020
1 O
/S
Ple
num
Dim
Ø190
Ø201 hole
20
30 m
in
WFORD
AA
252
250 O/A Plenum Dim
Ø 1
47
Ø 299 O/S Collar Dim
HORIZONTAL DIFFUSION
0.1
0.2
0.3
0.4
0.5
AIR
VEL
OCIT
Y (m
/s)
5 10 15 20 25 30 40 50AIR FLOW RATE (l/s)
Tr = Ts(-3˚C)
Tr = Ts(-6˚C)
0.5m
0.75
m1.
0m 1.25
m
1.5m
1.75
m
DATA SHOWN IS VALID FORTEMPERATURE CONDITIONS RANGING FROM ISOTHERMAL TO 6°C COOLING
Example
I
R
V
D
P
S
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Diffusers
Aircell Polymer Floor Diffusers
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCIT
Y (m
/s)
01 040302515AIR FLOW RATE (l/s)
0.5m
1.0m
0.75
m1.
25m
1.5m
1.75
m
VERTICAL DIFFUSION AT 3°C COOLING VERTICAL DIFFUSION AT 6°C COOLING
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCIT
Y (m
/s)
01 040302515
0.5m
0.75
m1.
0m
1.25
m
1.75
m
AIR FLOW RATE (l/s)
27 -
7 29 64 - -
4 7 26
w24 29 34
26 39 -
23 - -
- - 29 33 37
Pressure Loss Data
vertically from the
2 4 7 26
6
Acoustic data
w- - - - 23 27
23 - -
VERTICAL DIFFUSION AT 3°C COOLING
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCIT
Y (m
/s)
10 05040302515
1.5m
0.5m
0.75
m
1.0m
1.25
m
1.75
m
Example
AIR FLOW RATE (l/s)
VERTICAL DIFFUSION AT 6°C COOLING
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCIT
Y (m
/s)
01 05040302515
0.5m
0.75
m
1.0m
1.25
m1.
75m
AIR FLOW RATE (l/s)
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DiffusersAircell Polymer Floor Diffusers
Aircell Polymer Floor DiffusersInstallation
vertically from the
Pressure Loss Data
4 7 226 26 34 42
loss data is based on a
Acoustic data
w
- -22 29
All acoustic data is based
AIR FLOW RATE (l/s)
VERTICAL DIFFUSION AT 3°C COOLING
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCIT
Y (m
/s)
10 05040302515
0.3m
1.2m
0.6m
0.9mExample
AIR FLOW RATE (l/s)
VERTICAL DIFFUSION AT 6°C COOLING
0.1
0.2
0.3
0.4
0.5
0.6
0.70.80.91.0
AIR
VEL
OCIT
Y (m
/s)
01 05040302515
0.3m
0.6m
0.9m
1.2m
Ø201
Ø190
>30m
m
20.5
Ø211
WFO * T
WFO * P
WFO * S
WFO * D
23
Min
. T
ile50
Max
. T
ile
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Diffusers
Drum Jet DiffusersWDJIntroduction
Drum Jet Diffuser
FeaturesFully adjustable drum
Finishes
Satin Anodised Aluminium
Low resistant friction on drumEase of adjustment
Number
ORDER EXAMPLE
Factor
No A W H C D E
36
376 337 36
36
642 36
63
667 63
794 63
63
WDJ Air Volumem3
Ps Lw 23 34
2 22Ps Lw 39
26Ps 24 77Lw 26 33
9 36Ps Lw 27 34
4 34Ps 22Lw 24 29
3 37Ps 26Lw 22 32 37
4Ps Lw 29 39 37
22Ps Lw 27 33 37 39
A
75 BladePitch
B14 W
Duct Width
HD
uct
Hei
ght
Adjustable Vanes
Brush Strip Seal
D6
C
30°
30°
WDJ
E
AdaptorFrame
WDJ + OBSS
Selection Criteria
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Diffusers
Hi-Flo Jet DiffusersIntroduction
which allows the air jet to be adjusted for both
Features
Easy to install and adjust
direction
Finishes
Selection Criteria
When diffusers are mounted on a common
the jet velocity has retarded to a terminal
Ps
RWH RWH-P
D E F G
247 92 22
34 34
377 47
447
RWH Diffuser setting
Screw fixing through plate to ceiling or wall
F15G
RWH assemblyDiffuser setting
RWH assemblyJet setting
D30 E
Screw or rivetto ducting
ØB D
uct
1.5 - 15can be increasedwith longer screw
Clamp fixingto panel
ØA
ØC C
ut o
ut
ØB D
uct
Ducting(By others)
Ceiling or wall panel
RWH-P assembly RWH-P assembly
RWH
RWH-P
Air Volumem3
Dia
Jetm
Lw 23 29 37 43 49Ps
Diffuserm
Lw 36 44Ps
Dia
Jetm
Lw 22 27 46Ps 6
Diffuserm
Lw 29 37 43Ps 6
Dia
Jetm
Lw 24 29 44 49Ps 4
Diffuserm
Lw 36 44 62Ps 4
Dia
Jetm
Lw 26 33 46Ps 3 7
Diffuserm
Lw 46 62Ps 3 7
Finish
ORDER EXAMPLE
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Diffusers
A
299 299
349 349
399 399
499 499
A C
299 299
349 349
399 399
499 499
A C
299 299
349 349
399 399
499 499
A C
299 299
349 349
399 399
499 499
Plenums
2- Element
3- Element
4- Element
Hi-Flo Jet DiffusersFlo Jet Diffusers
2K 4K
+3 +7
+2 +4 +7 +2
-3 +3 +6
+3 +4 +7 +6
Factor
2 3 4
+3 +6
Jet Diffuser
Pressure Loss Factor
Full details of standard
connections
available to suit non-
=C C
=
ØD
=B2 O/S
C
C
A O
/S
=B1 O/S
=
=
ØD
1 Element
2 Elements
3 Elements
4 Elements
C
A O
/S
15 O/S
15 O/S
15 O/S
15 O/S
= CB3 O/S
A O
/S
ØD
A O
/S
B4 O/S=
ØD
www.waterloo.co.uk Tel: +44 (0)1622 711500
Diffusers
Introduction
Features
Low noise levels
Finishes
Selection Criteria
w
Dimensions J
2 79
64
72
462
Dimensions
Finish
ORDER EXAMPLE
Dimensions
ØA3
ØA2
ØA1
ØA4
1BJ
FlowRate
PressureLoss
Lw
m Pa m m m
26 27 442 6 -
723 4
3437 -
23 --
46 24 -32 3 - -
--
33 -- -
7 -76 3 -
4 - -23 - -
--
6 - -64 4 -
-24 - -
- -
62
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Diffusers
Subframe
236
29 33
VC
249S 74 97 74 97 - - - - -
94H 47 49 63 47 49 63 47 47 47 47
ORDER EXAMPLE
Air Volumem3 36 72 432
Ps 7 26Lw - 22 34
-Ps - 27
Lw - - 37
Ps 9 37Lw - - 26
Ps 44 72Lw - - - 37
Ps 24 36 44Lw - - - 37
Air Volumem3 36 72 432
Ps 4Lw - -Ps 9Lw - -Ps 6 22 32 47Lw - - - 27Ps 7 29 37Lw - - - 22
VCAir Volume
m3 36 72
Ps 39Lw -Ps 34 62
Lw - 22
Lw - - - 22Ps 32
Lw - - - 24 34
ØA1
ØB1
H1Subframe
ØD
ØB
ØS ØD
ØB
ØS
H + C H
Supply Valve VA/F Exhaust Valve VB/F Exhaust Valve VCC - Core adjustment
+ C
ØD
ØB
H + C
Introduction
inner coreInstallation
Finishes
Selection Criteriat
Ps
63
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Diffusers
Introduction
Installation
FinishesWhite - standardAll others subject to minimum order quantity
Ps
Selection Criteria
installations and is based on isothermal conditions to a terminal
Installation Collar Colour
ORDER EXAMPLE
L2
97
Air Volumem3 36 72
Ps 2 4Lw - - -
Ps 24 33 43Lw - - 37
Air Volumem3 36 72
Ps 3Lw - - -Ps 43Lw - 37 43
Air Volumem3 43
33
3642 43
27 32 37
ØD
20
L2
MAX42
15
ØA
L1
Max TileThickness
Installation collarsuitable for wallor ceiling mounting
Adjustable tabs tosuit installationmethod
Reversible airflow regulator (AR) suitable for supplyor extract
Ø184
Perforated snap fit fascia with removable deflection pad and direction baffle
34
1. FRAME/FASCIA2. DEFLECTION PAD3. INSTALLATION COLLAR4. OPTIONAL FLOW REGULATOR
11
3
FIT FACIA WITH BAFFLE BELOW
1
2
REMOVE DIRECTIONBAFFLE FOR FULLRADIAL AIR PATTERN
4(SUPPLY)
4
1
(EXTRACT)
WALL MOUNTING
300
MAX
CEILING MOUNTING
64
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Grille or Nominal to to
Nominal
Nominal to
+ 7 - 7
+ 39 - 39
+ 4 - 4
+ 26 - 26
+ 39 - 39
DSR
DSRX
AFG
SG2
SG3
Diffuser or Nominal
to to Nominal
Nominal to
Nominal
- 39
+ 36 - 36
Nominal - 7
DSL - ENDS + 26 - 26
FCD - ENDS
+ 36 - 36
DE + 74 - 74
DFA
Louvre or
Nominal to to
Nominal
Nominal to
- 6 + 6
- 6 + 6
SL - EF
SL - RF - 6 + 6
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Waterloo Tel: +44 (0)1622 711500
Waterloo Tel: +44 (0)1622 711500
GRILLES
DIFFUSERS
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