we shape air - betag.com · the sand trap louver is made of aliuminium section. it is composed of...
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LOUVERSLOUVERS
WE SHAPEWE SHAPE
AIRAIR
PRODUCTS CATALOGUEPRODUCTS CATALOGUE
PRODUCT BULLETINPRODUCT BULLETIN
Dubai Head Office:
Tel: +971 4 706 9777
Fax: +971 4 706 9787
Abu Dhabi Branch:
Tel: +971 2 645 0107
Fax: +971 2 645 0167
Email: [email protected]
P.O.Box 50708, DubaiUnited Arab Emirates
Dubai Head Office:
Tel: +971 4 706 9777
Fax: +971 4 706 9787
Abu Dhabi Branch:
Tel: +971 2 645 0107
Fax: +971 2 645 0167
Email: [email protected]
P.O.Box 50708, DubaiUnited Arab Emirates
w w w . b e t a g . c o mw w w . b e t a g . c o m
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GRAVITY AIR LOUVERSGRAVITY AIR LOUVERS
EXHAUST AIR LOUVERSEXHAUST AIR LOUVERS
FRESH AIR LOUVERS - HINGEDFRESH AIR LOUVERS - HINGED
FRESH AIR LOUVERSFRESH AIR LOUVERS
SAND TRAP LOUVERSSAND TRAP LOUVERS
ROUND EXHAUST LOUVER - IMP KLIMAROUND EXHAUST LOUVER - IMP KLIMA
PERFORMANCE CHART (STL & GAL)PERFORMANCE CHART (STL & GAL)
PERFORMANCE CHART (EAL & FAL)PERFORMANCE CHART (EAL & FAL)
LOUVERSLOUVERS
GRAVITY AIR LOUVERSGRAVITY AIR LOUVERS
Extruded
Aluminum Profile
1.2 mm thk
Extruded
Aluminum Profile
1.2 mm thk
45mm45mm45mm45mm
mB
+10
mm
B+1
0m
B+1
0mm
B+1
0mm
5B
+0m
m5
B+
0mm
B+5
0mm
B+5
0mm
71
71
71
71
71
71
71
71
Foam Gasket (optional)Foam Gasket (optional)
NON RETURN DAMPERNON RETURN DAMPER GRAVITY AIR LOUVERS (DUCTED)GRAVITY AIR LOUVERS (DUCTED)
ALUMINIUM FRAME
1.8 MM THK
ALUMINIUM FRAME
1.8 MM THK
100100
CONNECTING
ROD (OPTIONAL)
CONNECTING
ROD (OPTIONAL)
Extruded
Aliminium profile
1.2 MM Thk
Extruded
Aliminium profile
1.2 MM Thk
ID
UC
T S
ZE
ID
UC
T S
ZE
AIR FLOWAIR FLOW
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The gravity air louver is a wall
mounted device. It is composed of a set of horizontally mounted blades; they are
normally closed and are free to rotate
about the horizontal axis.
The gravity air louver is a wall
mounted device. It is composed of a set of horizontally mounted blades; they are
normally closed and are free to rotate
about the horizontal axis.
The blades & frame are manufactured
from aluminum extruded profiles.
The blades & frame are manufactured
from aluminum extruded profiles.
TYPE OF FIXINGTYPE OF FIXING
SCREW FIXINGSCREW FIXING CLIP FIXINGCLIP FIXING
ORDERING SYSTEMORDERING SYSTEM
POWDER COATED FINISH
AS PER RAL CODES
POWDER COATED FINISH
AS PER RAL CODES
WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM++++
GRAVITY AIR LOUVER
GRAVITY AIR LOUVER WITH CONNECTING ROD
NON RETURN DAMPER
NON RETURN DAMPER WITH CONNECTING ROD
GRAVITY AIR LOUVER
GRAVITY AIR LOUVER WITH CONNECTING ROD
NON RETURN DAMPER
NON RETURN DAMPER WITH CONNECTING ROD EXAMPLE : GAL 1000 150 RAL 9O16EXAMPLE : GAL 1000 150 RAL 9O16++
FINISHFINISH
SIZESIZE
TYPETYPE
RAL:RAL:
SIZE:SIZE:
GAL:
GAL - CR:
NRD:
NRD-CR
GAL:
GAL - CR:
NRD:
NRD-CR
ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE0101
EXHAUST AIR LOUVERSEXHAUST AIR LOUVERS
LOUVERSLOUVERS
TYPE OF FIXINGTYPE OF FIXING
Type of Fixing:
Screw fixing
Type of Fixing:
Screw fixing
Clip fixingClip fixing
EXHAUST AIR LOUVEREXHAUST AIR LOUVER
(B) - 1
0 m
m(B
) - 10 m
m
5m
(B) -
0 m
5m
(B) -
0 m
45 mm45 mm
The exhaust air louver is a weather
proof external cover for air inlet and
discharge openings, suitable for most
external walling and screening applica-
tions.
The exhaust air louver is a weather
proof external cover for air inlet and
discharge openings, suitable for most
external walling and screening applica-
tions.
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The exhaust air louver is composed
of a set of blades made of heavy gauge
aluminium extrusions arranged in
horizontal rows and inclind downward
to protect against rain water.
The exhaust air louver is composed
of a set of blades made of heavy gauge
aluminium extrusions arranged in
horizontal rows and inclind downward
to protect against rain water.
The exhaust air louver is used in
cooling, heating and air ventilation
applications.
The exhaust air louver is used in
cooling, heating and air ventilation
applications.
RAL:RAL:
Anodized:Anodized:
SIZE:SIZE:
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
EAL:EAL:
EAL / IS:EAL / IS:
EXHAUST AIR LOUVER
EXHAUST AIR LOUVER
WITH INSECT SCREEN
EXHAUST AIR LOUVER
EXHAUST AIR LOUVER
WITH INSECT SCREEN
FINISHFINISH SIZESIZE TYPETYPE
ORDERING SYSTEMORDERING SYSTEM
EXAMPLE : EAL 1000 150 Anodized EXAMPLE : EAL 1000 150 Anodized
++
++
+ +
ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE0202
LOUVERSLOUVERS
FRESH AIR LOUVERS - HINGEDFRESH AIR LOUVERS - HINGED
TYPE OF FIXINGTYPE OF FIXING
screw fixingscrew fixing
Clip Fixing
FRESH AIR LOUVER
() -
10 m
mB
(
) -10 m
mB
(B) - 5
0 m
m(B
) - 50 m
m
45 mm45 mm
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>>>> The fresh air louver is used in cooling,
heating and ventilation application. The
existence of filter provides the entrance
of clean air to the system.
The fresh air louver is used in cooling,
heating and ventilation application. The
existence of filter provides the entrance
of clean air to the system.
The fresh air louver can be opened
like an ordinary door to give flexibility to
acesss the filter for either cleaning or
changing
The fresh air louver can be opened
like an ordinary door to give flexibility to
acesss the filter for either cleaning or
changing
The filter is made of washable
aluminium media. It is attached to the
back of the louver and is easily remov-
able.
The filter is made of washable
aluminium media. It is attached to the
back of the louver and is easily remov-
able.
The fresh air louver is composed of an
exhaust air louver which is fixed to a
frame that contains a filter by means of steel hinges.
The fresh air louver is composed of an
exhaust air louver which is fixed to a
frame that contains a filter by means of steel hinges.
RAL:RAL:
Anodized:Anodized:
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
SIZE:SIZE: WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
++
++
FINISHFINISH SIZESIZE TYPETYPE
ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE0303
FALH:
FALHD:
FALH:
FALHD:
HINGED FRESH AIR LOUVER
HINGED FRESH AIR LOUVER
WITH DAMPER
HINGED FRESH AIR LOUVER
HINGED FRESH AIR LOUVER
WITH DAMPER
ORDERING SYSTEMORDERING SYSTEM
EXAMPLE : FALH 1000 150 Anodized EXAMPLE : FALH 1000 150 Anodized + +
TYPE OF FIXINGTYPE OF FIXING
TYPE OF FIXINGTYPE OF FIXING
FINISHFINISH SIZESIZE TYPETYPE
ORDERING SYSTEMORDERING SYSTEM
ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE
EXAMPLE : FAL 1000 150 Anodized EXAMPLE : FAL 1000 150 Anodized + +
0404
(B-
mm
) 10
(B-
mm
) 10
(B)
50
mm
+
(B)
50
mm
+
ScrewScrew
ClipClip
45 mm45 mm
LOUVERSLOUVERS
FRESH AIR LOUVERSFRESH AIR LOUVERS
RAL:RAL:
Anodized:Anodized:
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
SIZE:SIZE: WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
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FAL:FAL:
FALD:FALD:
FRESH AIR LOUVER
FRESH AIR LOUVER WITH DAMPER
FRESH AIR LOUVER
FRESH AIR LOUVER WITH DAMPER
The fresh air louver is a simple form of filter louver. It is composed of an
exhaust louver with an aluminium filterfixed at the back.
The fresh air louver is used to supply fresh clean air to the handling units.
The filter is made from washable aluminium media and is fixed on theback of the grille.
Insulating gasket is fixed around the back of the frame to prevent infiltrationbetween the frame and the wall.
Natural andozied aluminium finish.
Powder coated to RAL codes.
The fresh air louver is a simple form of filter louver. It is composed of an
exhaust louver with an aluminium filterfixed at the back.
The fresh air louver is used to supply fresh clean air to the handling units.
The filter is made from washable aluminium media and is fixed on theback of the grille.
Insulating gasket is fixed around the back of the frame to prevent infiltrationbetween the frame and the wall.
Natural andozied aluminium finish.
Powder coated to RAL codes.
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Available types of finishing:Available types of finishing:
LOUVERSLOUVERS
SAND TRAP LOUVERSSAND TRAP LOUVERS
TYPESTYPES
SAND TRAP LOUVERSAND TRAP LOUVER SAND TRAP LOUVER WITH SAND CHUTESAND TRAP LOUVER WITH SAND CHUTE
HE
GH
TI
HE
GH
TI
Sd
Ch
ut
ane
Sd
Ch
ut
ane
GH
TH
EIG
HT
HE
I
20
20
28
28
20
20
28
28
25257676
2525
28
28
2525
28
28
12
01
20
25
25
67
67
50502525
WIDTH (STL)WIDTH (STL)
2828
HOLEHOLE
5050
2828
WIDTH (STL-C)WIDTH (STL-C)
SAND TRAP LOUVERS BOTTOM VIEW DETAILSSAND TRAP LOUVERS BOTTOM VIEW DETAILS
FINISHFINISH SIZESIZE TYPETYPE
ORDERING SYSTEMORDERING SYSTEM7676
20
20
Handle of sand filterSand filter 20mm thkfreely sliding upward
Handle of sand filterSand filter 20mm thkfreely sliding upward
RAL:RAL:
Anodized:Anodized:
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
POWDER COATED FINISH
AS PER RAL CODES
ANDOIZED ALUMINUM FINISH
SIZE:SIZE: WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
WIDTH HEIGHT
MAX SIZE: 2000 MM 2000 MM
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++
SAND TRAP LOUVERSAND TRAP LOUVER
SAND TRAP LOUVER WITH SAND CHUTESAND TRAP LOUVER WITH SAND CHUTE
OPTIONSOPTIONSWITH SLIDING FILTERWITH SLIDING FILTER
WITH INSECT SCREENWITH INSECT SCREEN
STL SF/IS:STL SF/IS:
STLC SF/IS:STLC SF/IS:
SF :SF :IS :IS :
0505 ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE
Handle rivetedto frameHandle rivetedto frame
Frame ofsand filterFrame ofsand filter
View detailfrom arrow A View detailfrom arrow A FilterFilter
82
82
2525
HH
EIG
TH
HE
IGT
The sand trap louver is made of
aliuminium section. It is composed of twosets of inverted U-channels, mounted vertically on two opposite rows.
The sand trap louver is used at the fresh air inlet duct of the air handling
units. It can lower the dust loading ofconventional filtration as it is designed to separate large size sand particles atlow to medium speeds. It is also fitted with a bird screen mesh made of galva-
nized steel to protect against theunwanted objects.
The sand trap louver is a self empty-
ing system. It has a set of holes at thebottom face of the casing to discharge separated sand particles.
Can be supplied (as an option ) with :
1 - VCD2 - Wiremesh3 - Sliding filter
The sand trap louver is made of
aliuminium section. It is composed of twosets of inverted U-channels, mounted vertically on two opposite rows.
The sand trap louver is used at the fresh air inlet duct of the air handling
units. It can lower the dust loading ofconventional filtration as it is designed to separate large size sand particles atlow to medium speeds. It is also fitted with a bird screen mesh made of galva-
nized steel to protect against theunwanted objects.
The sand trap louver is a self empty-
ing system. It has a set of holes at thebottom face of the casing to discharge separated sand particles.
Can be supplied (as an option ) with :
1 - VCD2 - Wiremesh3 - Sliding filter
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ROUND EXHAUST LOUVERSROUND EXHAUST LOUVERS
LOUVERSLOUVERS
Application :Application :
Type OZR - 1 circular protection Grilles are used in all kinds of lowpressure air conditioning, air heating and ventelation, where roundsupply and exhasut air opening require protection against outside influence (rain, birds, insects etc....).
Type OZR - 1 circular protection Grilles are used in all kinds of lowpressure air conditioning, air heating and ventelation, where roundsupply and exhasut air opening require protection against outside influence (rain, birds, insects etc....).
Description :Description :
Type OZR CIRCULAR PROTECTION Grillers are constructed of roundFrame, horizontal blades and protective grille. They are made of galvanised sheet metal or aluminium and could be finished with anyRAL paint according to the customer’s request.
Type OZR CIRCULAR PROTECTION Grillers are constructed of roundFrame, horizontal blades and protective grille. They are made of galvanised sheet metal or aluminium and could be finished with anyRAL paint according to the customer’s request.
Installation on the round tube via the flange.Installation on the round tube via the flange.Standard sizes and installation:Standard sizes and installation:
sizes D D1 D2 D3 B H
400400 40040050050063063080080090090010001000
50050063063080080090090010001000
390390490490620620790790890890990990
41941951951964964981981991991910291029
45045055055068068085085095095010701070
252525252525252550505050
65656565
3737373737373737
D3 D2 D1 D
D3 D2 D1 D
66
H
D3 D2 D1 D
Installation on the round hole in the sheet.Installation on the round hole in the sheet.
Chart of total air pressure drop:Chart of total air pressure drop:
terminal velocity v (m/s)terminal velocity v (m/s)
Ordering key:Ordering key:
OZR / S / RAL / size 500OZR / S / RAL / size 500
size 400, 500, 630, 800,
900, 1000
size 400, 500, 630, 800,
900, 1000
requested RAL
S - zincked sheet
A - Al. Sheet
requested RAL
S - zincked sheet
A - Al. Sheet
Ordering Specification:Ordering Specification:OZR size 400 RAL 9016
Pieces 3
OZR size 400 RAL 9016
Pieces 3
vel.vel.
A (m )A (m )22
400 500 630 800 900 1000
0.10 0.17 0.27 0.44 0.56 0.69
400 500 630 800 900 1000
0.10 0.17 0.27 0.44 0.56 0.69
From the chart, the total air pressure drop ( Pcel) in respect to
terminal velocity (v) on free sectional area (A) is calculated.
From the chart, the total air pressure drop ( Pcel) in respect to
terminal velocity (v) on free sectional area (A) is calculated.
The right for technical modification reserved.The right for technical modification reserved.
ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE0606
LOUVERSLOUVERS
PERFORMANCE CHARTPERFORMANCE CHART
>> Test results conducted on similar equipment indicateda typical efficiency of 90% an AC coarse (150 - 700 mIcrons).and 60% on AC fine test ducts (75 - 700) microns)
>> Test results conducted on similar equipment indicateda typical efficiency of 90% an AC coarse (150 - 700 mIcrons).and 60% on AC fine test ducts (75 - 700) microns)
>> Free area ratio = 0.32 ( approx.)>> Free area ratio = 0.32 ( approx.)
>> To calculate the air flow rate :>> To calculate the air flow rate :
CFM= 0.32 A (in”) B(in”) Face velocity(fpm) 144
CFM= 0.32 A (in”) B(in”) Face velocity(fpm) 144
L/S = 0.32 A (mm) B (mm) Face velocity (m/s) 1000L/S = 0.32 A (mm) B (mm) Face velocity (m/s) 1000
>> For normal operation conditions, sand trap louvers usedfor natural ventilation purpose are rated at a recommended Facvelocity of 1-2m/s
>> For normal operation conditions, sand trap louvers usedfor natural ventilation purpose are rated at a recommended Facvelocity of 1-2m/s
SAND TRAP LOUVERSSAND TRAP LOUVERS
Face velocity, m/sFace velocity, m/s
0.0 0.5 1.0 1.5 2.0 2.5 3.00.0 0.5 1.0 1.5 2.0 2.5 3.0
0.0 100 200 300 400 500 600
100
80
60
40
20
0
200
180
160
140
120
100
80
60
40
20
Pre
ss
ure
Dro
p, P
a
Face Velocity, FPMFace Velocity, FPM
Eic
ien
cy%
ff
FACE VELOCITY BASED ON WIDTH (A) HEIGHT (B)FACE VELOCITY BASED ON WIDTH (A) HEIGHT (B)
EU
P
RS
SR
ED
RO
P
GRAVITY AIR LOUVERSGRAVITY AIR LOUVERS
>> Free area ratio (approx.) = 0.82 for 100% open blades.>> Free area ratio (approx.) = 0.82 for 100% open blades.
>> To calculate the air flow rate :>> To calculate the air flow rate :
CFM= 0.82 A (in”) B(in”) Face velocity(fpm) 144
CFM= 0.82 A (in”) B(in”) Face velocity(fpm) 144
L/S = 0.82 A (mm) B (mm) Face velocity (m/s) 1000L/S = 0.82 A (mm) B (mm) Face velocity (m/s) 1000
010
02
30
40
50
Pa
.00
.04
00
12.0
1. 60
.20
in w
.g.
ch
00
01. 2.0 03. 4.0 5.0 m/smfp200 400 600 800 0001
ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE070707
PERFORMANCE CHARTPERFORMANCE CHART
LOUVERSLOUVERS
EXHAUST AIR LOUVERSEXHAUST AIR LOUVERS
FACE VELOCITY BASED ON WIDTH (A) HEIGHT (B)FACE VELOCITY BASED ON WIDTH (A) HEIGHT (B)
PR
ES
SU
RE
DR
OP
PR
ES
SU
RE
DR
OP
002
02
04
04
08
08
010
010
0P
aP
a0
.00
.00
.160
.160
.32
0.3
20
0.4
00
.4n
..
ich
wg
n.
.i
ch
wg
0000
1.01.0 .2 0.2 0 3.03.03.03.0 m/spmf
m/spmf200200 04 004 0 600600600600
60
60
40
.24
0.2
0.0
80
.08
FACE VELOCITY BASED ON WIDTH (A) HEIGHT (B)FACE VELOCITY BASED ON WIDTH (A) HEIGHT (B)
ED
RP
PR
SS
UR
E
OE
DR
PP
RS
SU
RE
O
000
20
24
04
08
08
010
010
0P
aP
a0
.00
.00
.160
.160
.32
0.3
20
0.4
00
.4in
ch
w.g
.in
ch
w.g
.
0000
1.01.0 2.02.0 3.03.0 m/spmf
m/spmf200200 04 004 0 600600
60
60
0.2
40
.24
00.
80
0.8
FRESH AIR / FILTER LOUVERSFRESH AIR / FILTER LOUVERS
>> Free area ratio ( approx.) = 0.42>> Free area ratio ( approx.) = 0.42
>> To calculate the air flow rate :>> To calculate the air flow rate :
CFM= 0.42 A (in”) B(in”) Face velocity(fpm) 144
CFM= 0.42 A (in”) B(in”) Face velocity(fpm) 144
L/S = 0.42 A (mm) B (mm) Face velocity (m/s) 1000L/S = 0.42 A (mm) B (mm) Face velocity (m/s) 1000
>> Free area ratio ( approx.) = 0.37>> Free area ratio ( approx.) = 0.37
>> To calculate the air flow rate :>> To calculate the air flow rate :
CFM= 0.37 A (in”) B(in”) Face velocity(fpm) 144
CFM= 0.37 A (in”) B(in”) Face velocity(fpm) 144
L/S = 0.37 A (mm) B (mm) Face velocity (m/s) 1000L/S = 0.37 A (mm) B (mm) Face velocity (m/s) 1000
0808 ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE
6 006 003 0.3 0.