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>/GTHB-3-040<br />
Belt-driven, single inlet,<br />
backward impellers<br />
Diámetro rodete: 400 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>-GTHB<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 />
0 - 1928 25 18 6 8 5 7 14 19<br />
At the discharge<br />
duct (1)<br />
1929 - 3500 27 19 15 5 5 6 11 18<br />
At the inlet<br />
duct (2)<br />
0 - 1928 24 16 10 6 6 8 10 12<br />
1929 - 3500 27 20 18 5 4 5 7 16<br />
Radiated with ducts 0 - 1928 33 25 14 13 10 13 22 34<br />
at the inlet and at 1929 - 3500 36 29 18 12 9 14 22 37<br />
the discharge (3)<br />
At the discharge<br />
(free discharge-4)<br />
0 - 1928 37 23 8 9 5 7 14 19<br />
1929 - 3500 42 24 17 6 5 6 11 18<br />
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