DataSheet EFF201909

6 / 12 | Valves
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Air ow volume at different sound power levels L
wA
25 dB 30 dB 35 dB
Type m³/h l/s m³/h l/s m³/h l/s
EFF-63 20 6 27 8 34 9
EFF-80 23 6 31 9 38 11
EFF-100 52 14 73 20 90 25
EFF-125 82 23 110 31 132 37
EFF-150 108 30 144 40 170 47
EFF-160 121 34 162 45 191 53
EFF-200 152 42 198 55 232 64
NOTE: The working points were measured with 10 mm vent gap adjustment.
Technical Parameters
p
s
Pa Pressure drop
q
V
m
3
/h
l/s
Air ow volume
L
WA
dB(A) A-weighted total radiated sound power level
ΔT K Temperature difference Supply air - Room air
Calculation of Air Throw for Different Terminal Velocities
L
x
= L
0,2
· 0,2/x
Legend
Diagram 1: Pressure drop & A-weighted total radiated sound power level
depending on air ow volume
Diagram 2: Pressure drop & A-weighted total radiated sound power level
depending on air ow volume
10
20
30
40
50
m³/h
2
4
6
8
10
12
l/s
10
20
30
40
50
60
70
80
Pa
-15 mm
-10 mm
-5 mm
0 mm
5 mm
10 mm
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
-15 mm
-10 mm
-5 mm
0 mm
5 mm
10 mm
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
EFF-63
10
20
30
40
50
60
m³/h
2
4
6
8
10
12
14
16
l/s
25
50
75
Pa
-15 mm
-10 mm
-5 mm
0 mm
5 mm
10 mm
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
-15 mm
-10 mm
-5 mm
0 mm
5 mm
10 mm
25 dB(A)
30 dB(A)
35 dB(A)
40 dB(A)
45 dB(A)
EFF-80
L
0,2
m Air throw length with terminal velocity 0,2 m/s
L
x
m
Air throw length calculated for specic terminal
velocity
x m/s Terminal velocity in range of 0,1 m/s ... 1 m/s