English (GB)
17
10. Technical data
Supply voltage
Supply voltage tolerances
The motors meet the requirements to temperature
rise at ± 6 %.
Furthermore, the motors have been tested at ± 10 %
of the voltage range. During these tests, the motors
operate without problems and without being
thermally cut out.
The motor voltage tolerances are intended for mains
voltage variations. They should not be used for
running motors at other voltages than those stated
on the nameplates.
Enclosure class
IPX4D.
Ambient temperature
0 °C to +40 °C.
Relative air humidity
Maximum 95 %.
Liquid temperature
Water in heating systems:
Continuously: -10 °C to +120 °C.
For short periods: Up to +140 °C.
Domestic hot-water: Up to +60 °C.
Special version with FKM seals: Up to +80 °C.
Insulation of pump
The pump head must not be insulated.
If the liquid temperature is lower than the ambient
temperature, the drain holes in the stator housing
must not be covered if the pump is insulated.
System pressure
The flange pressure rating (PN) is indicated on the
pump flanges. The table below shows the maximum
permissible system pressure for the various pressure
ratings at different temperatures:
Flange connection
Test pressure
PN 6: 10 bar ∼ 1.0 MPa.
PN 10: 15 bar ∼ 1.5 MPa.
PN 6 / PN 10: 15 bar ∼ 1.5 MPa.
PN 16: 20.8 bar ∼ 2.08 MPa.
The pressure test has been made with water
containing anti-corrosive additives at a temperature
of +20 °C.
Inlet pressure
For the minimum pressures required for water at the
pump inlet during operation, see page 330.
Sound pressure level
The sound pressure level of the pump is lower than
70 dB(A).
Single-phase
pumps
Three-phase
pumps
Europe
except
Norway
1 x 230-240 V
50 Hz
3 x 400-415 V
50 Hz
Norway
1 x 230-240 V
50 Hz
3 x 200-230 V
50 Hz
Japan
1 x 100-110 V
50 Hz
1 x 100-110 V
60 Hz
3 x 200-230 V
50 Hz
3 x 200-230 V
60 Hz
Pressure
Cast-iron pumps
Bronze
pumps
≤ 120 °C 130 °C 140 °C ≤ 140 °C
[bar] / [MPa]
PN 6
6 /
0.6
5.8 /
0.58
5.6 /
0.56
10 /
1.0
PN 10
10 /
1.0
9.7 /
0.97
9.4 /
0.94
10 /
1.0
PN 6/10
10 /
1.0
9.7 /
0.97
9.4 /
0.94
10 /
1.0
PN 16
16 /
1.6
15.6 /
1.56
15 /
1.5
16 /
1.6
Pump type
PN
6
PN
10
PN
6/10
PN
16
Number
of bolt
holes
UPS(D) 32-xx
●●
4
UPS(D) 40-xx
●●
4
UPS(D) 50-xx
●●
4
UPS(D) 65-xx
●●
4
UPS(D) 80-xx
●
4
●●
8
UPS(D) 100-xx
●
4
●●
8