Anticipated Noise Levels For Standard Pumps - Wilo CronoNorm-NL Series Installation And Operating Instructions Manual

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6.3 Anticipated noise levels for standard
pumps
12

Anticipated noise levels for standard pumps:

Motor power Measuring surface sound-pressure level
P [kW]
N
≤ 0.55
0.75
1.1
1.5
2.2
3.0
4.0
5.5
7.5
11
15
18.5
22
30
37
45
55
75
90
110
132
160
200
250
315
Tab. 2: Anticipated noise levels for standard pumps
1)
Spatial mean value of sound-pressure levels within a cube-shaped measuring area at a
distance of 1 m from the surface of the motor
1)
Lp, A [dB(A)]
Pump with three-phase motor
without speed control
-1
2900 min 1450 min
52 58
60 51
60 53
67 55
67 59
67 59
67 59
71 63
71 63
74 65
74 65
74 71
76 71
79 72
79 73
79 73
79 74
80 72
81 70
81 72
- 72
- 72
- 73
- 74
- 74
WILO SE 07/2013
-1