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-3-056<br />
Belt-driven, single inlet,<br />
backward impellers<br />
Diámetro rodete: 560 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 />
At the discharge<br />
duct (1)<br />
At the inlet<br />
duct (2)<br />
0 - 964 31 12 7 8 4 8 13 19<br />
965 - 1928 31 18 6 8 4 8 13 18<br />
1929 - 2500 -6 -5 -3 -1 -5 -9 -14 -17<br />
0 - 964 26 13 8 8 3 7 11 16<br />
965 - 1928 28 19 7 9 3 7 11 16<br />
1929 - 2500 -5 -6 -5 -1 -4 -8 -11 -14<br />
Radiated with ducts 0 - 964 39 21 15 13 9 14 21 34<br />
at the inlet and at 965 - 1928 39 25 13 15 10 15 24 37<br />
the discharge (3) 1929 - 2500 -14 -12 -10 -8 -11 -16 -25 -36<br />
At the discharge<br />
(free discharge-4)<br />
0 - 964 39 16 8 8 4 8 13 19<br />
965 - 1928 40 22 7 8 4 8 13 18<br />
1929 - 2500 -16 -9 -4 -1 -5 -9 -14 -17<br />
343