DataSheet TFF202105 en GB

Valves | 7 / 12
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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
TFF-80 38 11 45 13 52 14
TFF-100 55 15 69 19 81 23
TFF-125 121 34 142 39 160 44
TFF-150 126 35 151 42 172 48
TFF-160 145 40 172 48 196 54
TFF-200 205 57 251 70 289 80
NOTE: The working points were measured with 20 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
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
Calculation of Air Throw for Different Terminal Velocities
L
x
= L
0,2
· 0,2/x
Legend