
Operating Instructions
36
1096.0799 | VU / VH Series
10/2010
9 Technical
data
9.1 Operating
limit
values
Inlet
pressure
Compression
pressure
Pressure
difference
Medium to be pumped
Operating
liquid
Speed
Switching
frequency
VU 20/40
Pressure
[mbar]
Operating liquid
Min. inlet pressure
150
Temperature
[°C]
Perm. compression pressure
1000
Max.
100
Perm. pressure difference
Min.
- 10
Max.
1500
Density
[kg/m
3
]
Min. 200
Max.
1200
Medium to be pumped
Viscosity
[mm
2
/s]
Temperature [°C]
Max.
90
Dry
200
Speed
[min
-1
]
Saturated 100
Max. 3500
Tab. 11 Operating limit values VU 20/40
VU 80/140/220
Pressure
[mbar]
Operating liquid
Min. inlet pressure
150
Temperature
[°C]
Perm. compression pressure
1200
Max.
100
Perm. pressure difference
Min.
- 10
Max.
1500
Density
[kg/m
3
]
Min. 200
Max.
1200
Medium to be pumped
Viscosity
[mm
2
/s]
Temperature [°C]
Max.
90
Dry
200
Speed
[min
-1
]
Saturated 100
Max. 1750
Tab. 12 Operating limit values VU 80/140/220
VU 300/450/500/600
Pressure
[mbar]
Operating liquid
Min. inlet pressure
120
Temperature
[°C]
Perm. compression pressure
1500
Max.
80
Perm. pressure difference
Min.
- 10
Max.
1500
Density
[kg/m
3
]
Min. 200
Max.
1200
Medium to be pumped
Viscosity
[mm
2
/s]
Temperature [°C]
Max.
90
Dry
200
Speed
[min
-1
]
Saturated 100
Max. 1750
Tab. 13 Operating limit values VU 300/450/500/600