21
This information only applies if the motor used is an ABB light alloy
motor and the size of the motor matches the power requirement of the
pump.
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
Max. 14 bar: W+ 25/210, W+ 30/120, W+ 50/8, W+55/35, W+ 55/60,
W+ 60/110, W+ 65/350, W+ 70/40, W+ 80/80, W+ 110/130
The above values also apply to the corresponding models in the
Wa+ and Wi+ versions.
6.3 Tightening torque for impellers and shafts
Tightening torque required for the screws in the shaft:
M8: 30 Nm (22 lbf ft)
M10: 55 Nm (40/ lbf ft))
Tightening torque required for the cap nut:
M10: 45 Nm (33 lbf ft)
M14: 70 Nm (52 lbf ft)
M20: 200 Nm (148 lbf ft)
Subject to changes.
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+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
68
68
72
82
69
72
76
79
81
89
83
83
86
90
83
83
88
87
100
89
89
93
77
79
87
82
81
84
88
82
82
84
85
102
83
87
90
74
75
82
78
78
81
86
78
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
69
74
76
86
75
75
79
62
65
73
68
67
70
74
68
68
70
74
88
69
73
76
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