Post on 13-Jul-2016
description
ISO 9001 CERTIFIED COMPANY
Copyright reserved. Specifications subject to change without notice.06www.airmasteremirates.com
SAND TRAPLOUVERS
SAND TRAP LOUVER HIGH EFFICIENCY model: ASTL-HE
Description:• Designed to filter sand particles at high
intake velocities, with high efficiency which is more than 90% and lesser pressure drop.
• It has the advantage of more free area so that sizes of usual sand trap louvers can be reduced to 25% of the normal sizes.
• Composed of a row of blades mounted vertically inside the frame.
• Designed to separate sand and dust from the air stream.
• The filtered sand will be drained through a sand chute fixed at the bottom of the louver.
• Generally used for ventilation applications and at inlet duct of air handling unit.
Standard finishes:• Natural anodized aluminium finish.• Powder coated colour finish as per RAL
colour code.• Flexibility of finish available as option.
13.4
CONSTRUCTION:Frame: 2mm thick extruded aluminium formed sheets.
Blades: 6063 high grade aluminium blade 2 mm thick.
Sand Chute: 1.5 mm thick aluminium sheet.
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
www.airmasteremirates.comCopyright reserved. Specifications subject to change without notice. 07
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
W x H
175
40 X 40MM fixing flange(OPTIONAL)
HE
IGH
T
WIDTH
215
WID
TH X
HE
IGH
T
215