OUTDOOR LOUVER GRILL 210 TA INSTRUCTION

Load loss and air tightness graphs for aluminium regulating dampers
Note: The air leak at damper AOBD-102-E is not greater than 2% in the closed position, with a static pressure of 1250 Pa.
4
Series 100-200
Knowing the air flow to be regulated by the damper, and using, for example, a front velocity of 6 m/s, the front surface of
the
damper can be obtained.
This can be calculated using the following formula:
A
f
(m
2
) = q
v
(m
3
/h) / V
f
(m/s) • 3600
With an air flow rate (q
v
) of 10.800 m
3
/h, we obtain:
A
f
(m
2
) = 10.800 / 6 • 3600= 0,50 m
2
This would lead to an AOBD
-102-E damper with a 1000
x 500 equivalent section with a load loss of 13 Pa for a 100%
aperture.
Example of Selection