4 Technical data
3.2 Rating plate
3.2 Rating plate
KRAL GmbH, 6890 Lustenau, Austria
www.kral.at
KRAL GmbH, 6890 Lustenau, Austria
www.kral.at
p
S
max. /
p
D
max.
Typ
| Type
SN
| Serial no.
T
min. /
T
max.
ºC
l/min
mm²/s
kg
min
-
¹
bar
bar
∆p
Jahr
| Year
Gewicht
| Weight
n
Q
Art.-Nr.
| Item no.
1
2
3
5
4
10
7
9
8
6
11
Fig. 2: Rating plate
1
Construction year
2
Max. operating overpressure
suction-side/Max. operating
overpressure pressure-side
3
Temperature range
4
Serial number
5
Type
6
Article number
7
Differential pressure
8
Nominal delivery rate
9
Rated speed
10
Nominal viscosity
11
Weight
4 Technical data
4.1 Operating limits
Parameter
Unit
EKL 11
EKL 12
EKL 13
EKS 11
EKS 12
EKS 13
Max. operating pressure
o
Pump unit
[bar]
6
o
St deaerator
[bar]
6
o
Shut-off devices
[bar]
6
o
Pressure maintaining
valve
[bar]
–
6
6
–
6
6
Inlet pressure
o
max.
[bar]
6
Temperature pumped li-
quid
o
min.
[°C]
-20
o
max.
[°C]
250
Viscosity
o
min.
[mm
2
/s] 2
o
max.
[mm
2
/s] 10000
Ambient temperature
o
min.
[°C]
-10
o
max.
[°C]
50
Tab. 3: Operating limits
4.2 Required NPSH values
The required NPSH values of the pump depend on the size, the viscosity of the pumped liquid and the
speed.
The NPSH values are available on the website of the manufacturer:
Operation instructions
OIK 10en-GB Edition 2021-06
7
