KOOLAIR SCFC-GD, Руководство пользователя

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0,45
0,30
0,15
30
25
40
45
50
35
1
10
100
1 10
∆
P (Pa
)
V
eff
(m/s)
k
p
L
wA
[dB(A)]
2
3
4 5 6 7 8 9
150
400
500
1000
750
4500
1500
2000
3000
0,01
0,10
1,00
1 10
A
L
(m
2
)
V
eff
(m/s)
Q (
m
3
/h
)
Technical data
SCFR-PD Diagram
Selection example:
For the given duct dimensions, we select a 600 x 500 mm SCFR-PD damper.
We use the table on the previous page to find the following data:
A
L
= 0,285 m
2
k
p
= 0,14 k
dB(A)
= -1
The technical data to achieve a flow rate of 5450 m
3
/h is required. Referring to the diagram above using the this flow rate
and an area of 0,285 m
2
, we find a V
eff
of 5,5 m/s. With this speed and taking into account the value of k
p
we are given:
Differential pressure: 4 Pa
Noise level: 41 dB(A)
Applying L
wA
- dB(A) = 41 + (-1) = 40 dB(A)
Series SF
24