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Centrifugal Fans direct driven with scroll - Nicotra Gebhardt

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RZA 11-0400<br />

Technical Data<br />

Density of media 1.15 kg/m³<br />

p sF<br />

182<br />

Pa<br />

2000<br />

1500<br />

1200<br />

1000<br />

800<br />

600<br />

500<br />

400<br />

300<br />

200<br />

150<br />

120<br />

100<br />

80<br />

60<br />

50<br />

P S<br />

0.6<br />

0.8<br />

1.0<br />

1.5<br />

2.0<br />

2.5<br />

3.0<br />

kW<br />

74<br />

Direct <strong>driven</strong> centrifugal fans / RZA / Technical Data<br />

Tolerance class 2 according to DIN 24166<br />

Measured in installation A according to ISO 5801 (unducted)<br />

53 %<br />

4.0 58<br />

40<br />

2000<br />

qV 3000 4000 5000 6000 8000 10000 12000 15000 m³/h<br />

0.6 0.7 0.8 0.9 1.0 1.5 2.0<br />

3.0 4.0 m³/s<br />

qV Determination of the Octave level<br />

Inlet side Relative sound power level LWrel7 octave band correction factors fm Discharge side<br />

Duty point<br />

63 125 250 500 1000 2000 4000 8000 Hz Duty point<br />

1.4 qVopt -9 -2 -3 0 -7 -9 -15 -25 dB 1.4 qVopt 1.4 qVopt -12 -6 -6 0 -7 -7 -13 -25 dB 1.4 qVopt 77<br />

80<br />

60<br />

83<br />

86<br />

L WA6;7<br />

58<br />

89<br />

saS (N max)<br />

50<br />

92<br />

40<br />

95 dB<br />

30<br />

20<br />

2330 1/min 80 Hz<br />

2200 76<br />

2000<br />

1800<br />

1600<br />

1400<br />

1300<br />

1200<br />

N<br />

69<br />

62<br />

55<br />

48<br />

45<br />

41<br />

1100 38<br />

f<br />

Relative sound power level LWrel6 octave band correction factors fm 63 125 250 500 1000 2000 4000 8000 Hz<br />

-5 -7 -5 -1 -6 -9 -16 -26 dB<br />

-7 -11 -8 -1 -6 -8 -13 -26 dB

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