6.1 Sound pressure and sound effect level for W+ Pumps
Measurements have been carried out in accordance with ISO 3743,
Grade 2, and ISO 3746, Grade 3. Tolerance: ±3 dB.
LpA in dB refers to the sound pressure level at a distance of one metre
from the surface of the pump at a height of 1.6 m above floor level (cf.
EC Directive (89/392/EEC) 1.7.4.).
Lwa states the sound power level.
Operating conditions A, B and C are defined as follows:
A. Nominal flow and operating pressure
B. Nominal flow and 60% operating pressure
C. 60% flow and operating pressure
The nominal flow and max. operating pressure in the case of the
W+ 55/60, for example, are 60m³/hr at an operating pressure of
55WG, and so on.
This information only applies if the motor used is an ABB aluminium
motor and the size of the motor matches the power requirement of the
pump.
The noise level may increase considerably, if reducers (reduction/
expanding fittings) are mounted on the inlet/outlet.
The values shown apply when the pumps run at 2900 rpm and have a
shroud over the motor. The values for the W+ 25/210 apply at 1450
rpm. If the pumps are run at 1450 rpm, the values are reduced by
about 20 dB.
6.2 Maximum permissible outlet pressure for W+ Pumps
The maximum pump outlet pressures specified below must not be
exceeded (applies to water at 20°C).
Max. 18 bar: W+10/8, W+22/20, W+30/80, W+35/55, W+35/35,
W+110/130
Max. 14 bar: W+25/210, W+30/120, W+50/600, W+50/8, W+55/35,
W+55/60, W+60/110, W+65/350, W+70/40, W+80/80
The above values also apply to the corresponding models in the
Wa+ and Wi+ versions.
6. Technical data
W+10/8
W+22/20
W+30/80
W+25/210
W+35/35
W+35/55
W+30/120
W+50/8
W+50/600
W+55/35
W+55/60
W+60/110
W+65/350
W+70/40
W+80/80
W+110/130
60
61
68
64
64
67
72
64
73
68
68
72
82
69
72
76
79
81
89
83
83
86
90
83
89
83
88
87
100
89
89
93
77
79
87
82
81
84
88
82
89
82
84
85
102
83
87
90
74
75
82
78
78
81
86
78
87
82
82
84
98
83
86
90
Operating conditions
LpA
LwA
A
C A B C
B
65
67
75
69
69
72
76
69
75
69
74
76
86
75
75
79
62
65
73
68
67
70
74
68
75
68
70
74
88
69
73
76
To Next Page
Loading...
Need help?
General
