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11. Technical data
11.1 Operating conditions
11.1.1 pH value
All pumps can be used for pumping liquids with a pH
value between 4 and 10.
11.1.2 Liquid temperature
The allowed temperature is 0-40 °C.
11.1.3 Density and viscosity of the pumped liquid
Maximum density: 1000 kg/m
3
.
Maximum kinematic viscosity: 1 mm
2
/s (1 cSt).
11.1.4 Operating mode
The pumps are designed for continuous and
intermittent operation. The maximum number of
starts allowed per hour are shown in this table:
*
Maximum 5000 starts per year
In order to avoid overloading the windings, seals and
bearings, the above numbers of starts must not be
exceeded.
11.1.5 Enclosure class
IEC IP68.
11.1.6 Sound pressure level
11.1.7 Turbulence optimiser (only with KPL and
KWM)
Turbulence optimisation is only possible if the pump
is mounted in the column pipe size that the pump is
intended for.
11.1.8 Storage temperature
Storage temperature: -25 to +55 °C. Maximum 70 °C
for short periods not exceeding 24 hours (EN 60204-
1, 4.5).
11.2 Dimensions and weights
For pump dimensions and weights, see data booklet
on www.grundfos.com.
11.2.1 Bending radius of cables
The bending radius of the cables is 15 times the
outer cable diameter.
When pumping liquids with a density or
kinematic viscosity higher than that of
water (the values stated above), use a
motor with a correspondingly higher
output.
Motor power
[kW]
Maximum number of starts
per hour*
≤
90
15
>
90 -
≤
200
10
> 200
10 (soft starter)
CAUTION
Sound pressure level
Minor or moderate personal injury
- Use hearing protection when working
nearby an installation in operation.
Depending on the installation type, the
sound pressure level of the pump can
be higher than 70 dB (A).
Cable type
Square
[mm
2
]
Cable
diameter
[mm]
Bending
radius
[mm]
PNCT
6x6+1x4+6x1.5
6
24
360
PNCT
6x10+1x6+6x1.5
10
34
510
PNCT
6x16+1x10+6x1.5
16
34
510
PNCT
6x25+1x16+6x1.5
25
42
630
PNCT(R)
x35+1x25+6x1.5
35
45
675
PNCT(R) 4x70
70
50
750
PNCT(R) 4x95
95
56
840
PNCT(R) 4x120
120
65
975
PNCT(R) 4x150
150
69
1035
PNCT(R) 4x185
185
70
1050
Sensor cable
23
345
