Grundfos CR 90 - Page 336

Appendix
336
Fig. D
Fig. E
Airborne noise emitted by pumps with motors fitted by Grundfos
Motor
[kW]
50 Hz 60 Hz
0.37 50 55
0.55 50 53
0.75 50 54
1.1 52 57
1.5 54 59
2.2 54 59
3.0 55 60
4.0 62 66
5.5 60 65
7.5 60 65
11 60 65
15 60 65
18.5 60 65
22 66 70
30 71 75
37 71 75
45 71 75
55 71 75
75 73 77
TM02 7445 3503
L
pA
[dB(A)]
L
pA
[dB(A)]
20
15
12
10
8,0
6,0
5,0
4,0
3,0
2,0
1,0
0,8
0,6
0,4
0,3
0,2
0,1
1,5
120
110
90
100
80
70
60
50
40
30
20
10
0
Hv
(m)
tm
(°C)
150
130
140
25
35
45
40
30
160
170
180
190
62
79
100
126