GTLB Series F400 120 Rated Fans - Klimats24.lv
GTLB Series F400 120 Rated Fans - Klimats24.lv
GTLB Series F400 120 Rated Fans - Klimats24.lv
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Performance curves - <strong>GTLB</strong>-3-112<br />
Belt-driven, single inlet,<br />
backward impellers<br />
Diámetro rodete: 1<strong>120</strong> mm<br />
Pt<br />
Pa<br />
mmWG<br />
Note: Only <strong>GTLB</strong> models are available in the<br />
smoke extract version 400ºC/2h.<br />
Acoustic characteristics<br />
The sound levels shown in the curves are<br />
sound power levels in dB(A), on the outlet<br />
side of the fan with inlet and outlet ducted.<br />
The correction values K(f) given in the table,<br />
are used to calculate the radiated noise levels<br />
according to each frequency band (f), depending<br />
on the position.<br />
Measured position<br />
LwA(f) = LwA + K(f)<br />
Centrifugal direct drive fans <strong>GTLB</strong><br />
1 = Discharge duct<br />
2 = Inlet duct<br />
3 = Radiated (with inlet and discharge ducts)<br />
4 = At the discharge (free)<br />
Test set up<br />
Speed of<br />
Corrections K(f)<br />
the impeller<br />
Frequency bands (f), Hz<br />
Position (s) (rpm) 63 125 250 500 1000 2000 4000 8000<br />
At the discharge<br />
duct (1)<br />
At the inlet<br />
duct (2)<br />
0 - 400 24 17 10 6 5 6 13 28<br />
401 - 800 26 14 9 6 5 7 12 25<br />
801 - 1100 -4 -2 0 -2 -5 -8 -14 -25<br />
0 - 400 24 17 10 6 5 6 13 28<br />
401 - 800 26 14 9 6 5 7 12 25<br />
801 - 1100 -4 -2 0 -2 -5 -8 -14 -25<br />
Radiated with ducts 0 - 400 31 24 17 13 11 11 21 38<br />
at the inlet and at 401 - 800 33 20 16 11 10 12 20 35<br />
the discharge (3) 801 - 1100 -11 -10 -7 -8 -10 -13 -22 -35<br />
At the discharge<br />
(free discharge-4)<br />
0 - 400 28 18 10 6 5 6 13 28<br />
401 - 800 30 15 9 6 5 7 12 25<br />
801 - 1100 -8 -3 0 -2 -5 -8 -14 -25<br />
351
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