WE SHAPE AIR - betag.com · The sand trap louver is made of aliuminium section. It is composed of two sets of inverted U-channels, mounted vertically on two opposite rows.

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

indexindex

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11

22

33

44

55

66

77

88

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


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


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


LOUVERSLOUVERS


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:


AS PER RAL CODES

ANDOIZED ALUMINUM FINISH


AS PER RAL CODES


WIDTH HEIGHT


WIDTH HEIGHT


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


EXAMPLE : EAL 1000 150 Anodized EXAMPLE : EAL 1000 150 Anodized

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++

+ +


LOUVERSLOUVERS

FRESH AIR LOUVERS - HINGEDFRESH AIR LOUVERS - HINGED


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:


AS PER RAL CODES



AS PER RAL CODES


SIZE:SIZE: WIDTH HEIGHT


WIDTH HEIGHT


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++



FALH:

FALHD:

FALH:

FALHD:

HINGED FRESH AIR LOUVER


WITH DAMPER



WITH DAMPER


EXAMPLE : FALH 1000 150 Anodized EXAMPLE : FALH 1000 150 Anodized + +





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:


AS PER RAL CODES



AS PER RAL CODES




WIDTH HEIGHT


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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


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


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:


AS PER RAL CODES



AS PER RAL CODES




WIDTH HEIGHT


++

++

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.


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


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


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


>> Free area ratio (approx.) = 0.82 for 100% open blades.>> Free area ratio (approx.) = 0.82 for 100% open blades.





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


PERFORMANCE CHARTPERFORMANCE CHART

LOUVERSLOUVERS



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


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





>> Free area ratio ( approx.) = 0.37>> Free area ratio ( approx.) = 0.37





0808 ALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICEALL DETAILS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE

6 006 003 0.3 0.

WE SHAPE AIR - betag.com · The sand trap louver is made of aliuminium section. It is composed of two sets of inverted U-channels, mounted vertically on two opposite rows.

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