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Beschikbare talen
Afb. 4
Airborne noise emitted by pumps
with motors fitted by Grundfos
50 Hz
Motor
L
[kW]
[dB(A)]
0.37
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
36
60 Hz
L
pA
pA
[dB(A)]
50
55
50
53
50
54
52
57
54
59
54
59
55
60
62
66
60
65
60
65
60
65
60
65
60
65
66
70
71
75
71
75
71
75
71
75
73
77
Afb. 5
tm
(°C)
190
126
180
100
170
79
160
62
150
45
40
140
35
30
130
25
120
20
15
110
12
100
10
8,0
90
6,0
5,0
80
4,0
70
3,0
60
2,0
1,5
50
1,0
0,8
40
0,6
30
0,4
0,3
20
0,2
10
0,1
0
Hv
(m)
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