4.8 Noise characteristics
Table 6: Surface sound pressure level L
pA
1)
Rated power
input P
N
[kW]
Pump set
1450 rpm
[dB]
1750 rpm
[dB]
2900 rpm
[dB]
3500 rpm
[dB]
0,25 53 54 - -
0,37 54 55 - -
0,55 55 56 - -
0,75 56 57 66 -
1,1 57 58 66 69
1,5 58 59 67 70
2,2 59 60 67 70
3 60 61 68 71
4 61 62 68 71
5,5 62 63 70 73
7,5 64 65 71 74
11 65 66 73 76
15 67 68 74 77
18,5 68 69 75 78
22 69 70 76 79
30 70 71 77 80
37 71 72 78 81
45 73 74 78 81
4.9 Scope of supply
Depending on the model, the following items are included in the scope of supply:
▪ Pump
Drive
▪ Surface-cooled IEC frame three-phase squirrel-cage motor
Contact guard
▪ Cover plates on drive lantern to EN 294
4.10 Dimensions
For dimensions refer to the outline drawing of the pump (set).
1)
Spatial average; as per ISO 3744 and EN 12639; valid for pump operation in the Q/Qopt = 0.80 - 1.1 range and for non-
cavitating operation. If noise levels are to be warranted: add +3 dB for measuring and constructional tolerance.
4 Description of the Pump (Set)
Normblock
21 of 58
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