6 Commissioning/Start-up/Shutdown
39 of 76
EtaLine Pro
1168.87/01-EN
6.2.1 Ambient conditions
CAUTION
Operation outside the permissible ambient temperature
Damage to the pump (set)!
▷
Observe the specified limits for permissible ambient temperatures.
Observe the following parameters and values during operation:
Table 10:
Permissible ambient temperatures specified for the fluid temperature
Fluid temperature
Permissible maximum ambient
temperature
[°C]
[°C]
≤ +90
+40
≤ +120
+30
Ambient conditions for operation
(IEC 60721-3-3, EN 50178)
▪
Climatic conditions for operation: Class 3K3
▪
Temperature range: 0° C to +40 °C
▪
Relative humidity: < 95 %
▪
Condensation must be prevented.
▪
Atmospheric pressure: 70 KPa to 106 KPa
6.2.2 Maximum operating pressure
CAUTION
Permissible operating pressure exceeded
Damage to connections and seals!
▷
Never exceed the operating pressure specified in the data sheet.
The maximum operating pressure is 6 or 10 bar, depending on the design variant. See
name plate. (
6.2.3 Fluid handled
6.2.3.1 Flow rate
Table 11:
Flow rate
Temperature range (t)
Minimum flow rate
Maximum flow rate
0 to +70 °C
≈ 15 % of Q
Opt
3)
See hydraulic characteristic
curves
> 70 to +120 °C
≈ 25 % of Q
Opt
3)
The calculation formula below can be used to check if an additional heat build-up
could lead to a dangerous temperature increase at the pump surface.
×
×
×
Table 12:
Key
Symbol
Description
Unit
c
Specific heat capacity
J/kg K
g
Acceleration due to gravity
m/s²
3
Best efficiency point
