4 Technical data
4.1 Operating limits
4 Technical data
4.1 Operating limits
Parameter
Unit
Light oil
Heavy fuel oil
DL3
DL4
DS1
DS3
DS4
Max. operating pressure
[bar]
6.0
Max. inlet pressure
o
Radial shaft seal
[bar]
0.5
o
Mechanical seal
[bar]
5.0
Min. – max. temperature of
pumped liquid
[°C]
10 – 80
50 – 180
Viscosity min. – max.
[mm
2
/s]
2 – 37
10 – 1000
Min. – max. ambient temperature
[°C]
-10 ... 50
Tab. 3: Pump station operating limits
4.2 Filling volume
Parameter
Unit
DL3
DL4
DS1
DS3
DS4
Pump station filling volume
[l]
9.0
9.0
3.6
9.0
9.0
Tab. 4: Pump station filling volume
4.3 Inlet pressure for heavy fuel oil
The water contained in the heavy fuel oil evaporates at high temperatures and inlet pressure that is too
low. The diagram shows the minimum inlet pressure to be complied with at the suction side connection
depending on the temperature in operation. The maximum temperature amounts to 150 °C.
70
80
90
100
11 0
120
130
140
150
-1
0
1
2
3
4
5
6
7
T [°C]
p [bar]
Fig. 3: Inlet pressure for heavy fuel oil
p
Inlet pressure
●
Recommended inlet pressure
T
Temperature
O
Evaporating pressure water
4.4 Sound pressure level
Guide value at 1 m distance, rated speed of the station, 50 Hz operation
Size DL3
Size DL4
1800
2300
2900
3200
4000
6000
Max. sound pressure level ±3 [dB(A)]
Pump
53.0
54.6
56.1
56.2
58.0
60.1
Motor
54.0
55.0
55.0
59.0
59.0
60.0
1 pump unit
56.5
57.8
58.6
60.8
61.5
63.1
2 pump units
58.1
59.5
60.5
62.1
63.1
64.8
Tab. 5: Sound pressure level DL3 and DL4
8
OID 06en-GB Edition 2019-11
Operating instructions
