sand trap louvers - airmaster equipments...
TRANSCRIPT
SAND TRAPLOUVERS
www.airmasteremirates.com
ISO 9001 CERTIFIED COMPANY
YE
ARS OF
EXCE L L ENCE25
INDEX
SAND TRAP LOUVERS13.0 indexISO 9001 CERTIFIED COMPANY
www.airmasteremirates.com 02 Copyright reserved. Specifications subject to change without notice.
SAND TRAPLOUVERS
13.0
SECTION TOPIC PAGE
13.1 Sand Trap Louver with Bird screen ASTL 3
13.2 Sand Trap Louver with Filter ASTL+F 4
13.3 Sand Trap Louver with Damper ASTL+D 5
13.4 Sand Trap Louver High Efficiency ASTL-HE 6
13.5 Flush Mounted Sand Trap Louver AFSTL 8
13.6 Standard sizes and Fixing details 9
13.7 Product summary and Order checklist 10
13.8 Determining ASTL Size 11
Cover Page Photo HHHR Tower, Dubai.Cover Page Photo
SAND TRAPLOUVERS
SAND TRAP LOUVERWITH BIRD SCREEN model: ASTL
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Description:•The frame and blades are of high quality
extruded aluminium profiled constructionwith the advantages of corrosion resistanceandrigidity.
•Composed two sets of inverted U-channelsmountedverticallyontwooppositerows.
• Drain holes of diameter 20 mm are providedin two rows at the bottom of the louver foremptyingfilteredsandanddust.
•CanbemanufacturedfromG.IorSSasoption.
•Designed toseparatesandanddust from theairstream.
•Generallyusedforventilationapplicationsandatinletductofairhandlingunit.
Standard finishes:•Naturalaluminiumanodizedfinish.•FinishasperRALcolourcode.•Flexibilityoffinishingavailableasoption.
CONSTRUCTION:Frame and blades:1.5mmand1.2mmthickhighqualityextrudedaluminiumprofiles.
Bird screen: 12 mm x 12 mm x 1 mmdiameter G.I wire mesh as standard.12mmx12mmx1.5mmdiameteraluminiumwiremeshasoption.
Drain:20mmdiameterselfdrainholesatthebottomofthelouver.
13.1
Width
Wid
th x
Hei
ght
WxH
100 50
Drain holes
Hei
ght
1993 Edition.
SAND TRAPLOUVERS
ISO 9001 CERTIFIED COMPANY
Copyright reserved. Specifications subject to change without notice.04
SAND TRAP LOUVER WITH FILTER model: ASTL+F
www.airmasteremirates.com
Description:•The frame and blades are of high quality
extruded aluminium profiled constructionwith the advantages of corrosion resistanceandrigidity.
•Composed two sets of inverted U-channelsmountedverticallyontwooppositerows.
•Drainholesofdiameter20mmareprovidedintworowsatthebottomofthelouverforemptyingfilteredsandanddust.
•Fixed with a removable washable extrudedaluminium filter with aluminium mesh as thefiltermedia.
•Filters are available at 12, 25 and 50 mmthicknessasrequired.
•Total assembly is designed to operate atmedium and high velocities with high dustholdingcapacityatlowresistancetoairflow.
•CanbemanufacturedfromG.IorSSasoption.
•Design to separate sand and dust from theair stream. Generally used for ventilationapplications and at inlet duct of airhandlingunit.
Standard finishes:•Naturalaluminiumanodizedfinish.•FinishasperRALcolourcode.•Flexibilityoffinishingavailableasoption.
CONSTRUCTION:Frame and blades:1.5mmand1.2mmthickhighqualityextrudedaluminiumprofiles.
Bird screen: 12 mm x 12 mm x 1 mmdiameter G.I wire mesh as standard.12mmx12mmx1.5mmdiameteraluminiumwiremeshasoption.
Drain:20mmdiameterselfdrainholesatthebottomofthelouver.
Filter frame:20gaugealuminiumsheet.
Filter media: Expanded aluminium media.Syntheticfilterisoptional.
13.2
1993 Edition.
Wid
th x
Hei
ght
Drain holes
Filter
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Description:•Manufactured from high quality extruded
aluminium profiles with the advantages ofcorrosionresistanceandrigidity.
•Composed two sets of inverted U-channelsmountedverticallyontwooppositerows.
•Drainholesofdiameter20mmareprovidedintworowsatthebottomofthelouverforemptyingfilteredsandanddust.
•CanbemanufacturedfromG.IorSSasoption.
•Fixedwitharemovablevolumecontroldampertoensurespositivecontroloverthefreshairstream.
•Damper can be operated manually from thebackofthelouverorcanbemotoroperated.
•Designed to separate sand and dust fromthe air stream. Generally used for ventilationapplicationsandatinletductofairhandlingunit.
Standard finishes:•Naturalaluminiumanodizedfinish.•FinishasperRALcolourcode.•Flexibilityoffinishingavailableasoption.
CONSTRUCTION:Frame and blades:1.5mmand1.2mmthickhighqualityextrudedaluminiumprofiles.
Bird screen: 12 mm x 12 mm x 1 mmdiameter G.I wire mesh as standard.12mmx12mmx1.5mmdiameteraluminiumwiremeshasoption.
Drain:20mmdiameterselfdrainholesatthebottomofthelouver.
Damper:Galvanizedsteelsheetconstruction.
Damper blades: High quality extrudedaluminiumprofiles.
SAND TRAPLOUVERS
SAND TRAP LOUVERWITH DAMPER model: ASTL+D
13.3
1993 Edition.
Giv
en s
ize
(WxH
)
Drain holes
Extended G.I neck (by others)
V.C.D
Bird screen
Giv
en s
ize
(WxH
)
Drain holes
Extended G.I neck (by others)
VCD riveted to G.I neck
V.C.D
Filter
Model: ASTL + F + DSand trap louver with filter and GI Damper
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SAND TRAPLOUVERS
SAND TRAP LOUVER HIGH EFFICIENCY model: ASTL-HE
Description:•Designed to filter sand particles at high
intake velocities, with high efficiencywhich is more than 90% and lesserpressuredrop.
•It has the advantage of more free area sothat sizes of usual sand trap louvers can bereducedto25%ofthenormalsizes.
•Composedofarowofbladesmountedverticallyinsidetheframe.
•Designed toseparatesandanddust from theairstream.
•Thefilteredsandwillbedrainedthroughasandchutefixedatthebottomofthelouver.
•Generallyusedforventilationapplicationsandatinletductofairhandlingunit.
Standard finishes:•Naturalanodizedaluminiumfinish.•Powder coated colour finish as per RAL
colourcode.•Flexibilityoffinishavailableasoption.
13.4
CONSTRUCTION:Frame: 2mm thickextruded aluminiumformedsheets.
Blades: 6063 highgrade aluminium blade2mmthick.
Sand Chute: 1.5 mmthickaluminiumsheet.
1993 Edition.
8
10
12
14
16PRESSURE LOSS IN MM OF H20 vs. FACE VELOCITY M/SEC
0
2
4
6
0.2 0.7 1.2 1.7 2.2 2.7 3.2 3.7 4.2FACE VELOCITY M/SEC
PR
ES
SU
RE
LO
SS
IN M
M O
F H
2O
25 mm blade spacing
40 mm blade spacing
Main & inset picture: ASTL-HE installed at Doha convention centre.
ISO 9001 CERTIFIED COMPANY
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SAND TRAP LOUVERHIGH EFFICIENCY
SAND TRAPLOUVERS
model: ASTL-HE
13.4
1993 Edition.
30
40
50
60
70
80
90
100
Effe
ctiv
enes
s (%
)
Effectiveness (%) v/s face velocity m/s - model ASTL-HE
0
10
20
30
0 0.5 1 1.5 2 2.5 3 3.5 4
face velocity in m/s
% retained for 40mm blade space/ 200-700 µ % retained for 40mm blade space/ 20-200 µ
% retained for 25mm blade space/ 200-700 µ % retained for 25mm blade space/ 20-200 µ
SAND CHUTE
High efficiency sand trap louver airmaster
W x H
175
40 X 40MM fixing flange(OPTIONAL)
HE
IGH
T
WIDTH
215
WID
TH X
HE
IGH
T
215
High Efficiency Sand Trap Louver
ISO 9001 CERTIFIED COMPANY
Copyright reserved. Specifications subject to change without notice.08www.airmasteremirates.com
FLUSH MOUNTEDSAND TRAP LOUVER
SAND TRAPLOUVERS
model: AFSTL
13.5
Description:•The frame and blades are of high quality
extruded aluminium profiled constructionwith the advantages of corrosion resistanceandrigidity.
•Composed two sets of inverted U-channelsmountedverticallyontwooppositerows.
•Surfaceofthelouverisfixedflushontheplaneof the wall. The filtered sand will be drainedthroughasandchute.
•Sandchuteisaninclinedtrayfixedatthebottomofthelouverforsanddrain.
•Designed toseparatesandanddust from theairstream.
•Generallyusedforventilationapplicationsandatinletductofairhandlingunit.
•CanbemanufacturedfromG.IorSSasoption.
Standard finishes:•Naturalaluminiumanodizedfinish.•FinishasperRALcolourcode.•Flexibilityoffinishingavailableonoption.
CONSTRUCTION:Frame and blades:1.5mmand1.2mmthickhighqualityextrudedaluminiumprofiles.
Bird screen: 12 mm x 12 mm x 1 mmdiameter G.I wire mesh as standard.12mmx12mmx1.5mmdiameteraluminiumwiremeshasoption.
Sand chute:Aluminiumsheettrayof1.2mmthickness.
1993 Edition.
Wid
th x
Hei
ght
Sand chute
AFSTL supplied to Abu Dhabi National Exhibition Center
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STANDARD SIZES &FIXING DETAILS
SAND TRAPLOUVERS
13.6
Standard sizes:•Availableinsquareandrectangularsizes.•Allcombinationofwidthxheight.•Nonstandardsizesareavailable.
Width in mm 150 300 450 600 750 900 1050 1200 1350 1500
Height in mm 150 300 450 600 750 900 1050 1200 1350 1500
Fixing details:
CONCEALED SCREW FIXING FLUSH MOUNT STL FIXING
Angle for fixingSTL
MULTI-SECTION ARRANGEMENT
Heavy Duty STL specification:Forspecialpurposeprojects,Airmasteroffersheavydutysandtraplouversconstructedusing2mmthickframeand1.5mmthickblade.
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PRODUCT SUMMARY &ORDER CHECKLIST
SAND TRAPLOUVERS
13.7
Product Summary:Model Product Description Optional accessories
ASTL Sand trap louver
ASTL+F Sand trap louver with filter
ASTL+D Sand trap louver with damper
ASTL+D+F Sand trap louver with filter and damper
ASTL-HD Sand trap louver Heavy Duty
AFSTL Flush mount sand trap louver
ASTL-HE High efficiency sand trap louver Blade spacing
• 25 mm • 40 mm
Product order checklist:•Model number (please refer product summary above)•Size•Colour ( RAL 9010, 9016, Anodized aluminium finish or other RAL Colours) •Quantity
Size – 6m x 6m
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DETERMINING ASTL SIZE
SAND TRAPLOUVERS
13.8
How to Size ASTL and AFSTL:Note: For optimum performance of sand trap louver with lower pressure drop and higher efficiency, we recommend a face velocity of up to 1m/s.
For a known air quantity,calculate face area as follows:
Face area (m2) = Air quantity (m3/sec)
Face velocity (m/sec)
The length (m) and width (m) ofsandtraplouvercanbedeterminedfromthefaceareacalculatedwithrespecttotheopeningprovidedatthesite.
If only free area is known,calculate face area as follows:
Face area (m2) = Free Area (m2) x 2.7
The length (m) and width (m) ofsandtraplouvercanbedeterminedfromthefaceareacalculatedwithrespecttotheopeningprovidedatthesite.
Face Velocity (m/s) = Air quantity (m3/sec)
Face area (m2)
Free Area Velocity (m/s) = Air quantity (m3/sec)
0.36 x Length(m) x Width(m)
1 m3/sec = 1000 LPS (Litres per second)
Printed data based on face velocity and test results from accredited third-party testing laboratories.
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5
Effe
ctiv
enes
s (%
)
Face Velocity (m/s)
Effectiveness (%) vs. face velocity (m/s)ASTL ASTL+F
150
200
250
300
350
Pres
sure
dro
p (P
a)
Pressure drop (Pa) v/s Face Velocity (m/s)Model - ASTL Model - ASTL+F
0
50
100
150
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Pres
sure
dro
p (P
a)
Face Velocity (m/s)
AIR MASTER EQUIPMENTS EMIRATES LLC.Post Box - 3180, Ajman, U.A.E.Tel: +971 6 7436900, 7439600 Fax: +971 6 7436700E-mail: [email protected], [email protected]
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