KSB HPK Series User Manual

6 Commissioning/Start-up/Shutdown
41 of 80
HPK
1121.8/06-EN
The cooling liquid quantities indicated are based on Δt = 15 °C (max.).
In the case of deviations, the cooling liquid requirement changes in direct proportion
to the change in the temperature difference.
Q
cooling water
for Δtx = Q
cooling water
x (15 : Δtx)
6.1.6 Cooling of the shaft seal
CAUTION
Vaporisation pressure of fluid handled higher than atmospheric pressure
Damage to the shaft seal/pump!
▷ Cool the shaft seal.
▷ Provide sufficient quantities of cooling liquid (see table).
The casing cover's cooling chamber permits intensive cooling of the shaft seal
without cooling down the fluid handled.
NOTE
The vaporisation pressure varies depending on the fluid handled, the system
pressure and the material of the shaft seal (e.g. hot water).
Table15: Cooling liquid quantity [l/min]
Fluid temperature
Bearing bracket ≤250°C ≤400°C
P02as 3 4
P03s, P03as 4 5
P04s, P04as 4 5
P05s, P05as 5 6
P06s, P06as 5 6
P08s 6 7
Cooling liquid pressure: 10bar (max.)
6.1.7 Bearing bracket cooling
The bearing load or the temperature of the fluid handled have little impact on the
bearing temperature. Rather, bearing temperature is determined by the rotational
speed, ambient temperature, oil quality and oil level.
If no bearing temperature limits are specified, no cooling system is required for 4-
pole drives.
On pumps with 2-pole drive, P04, P05, and P06 bearing assemblies must be cooled if
the fluid temperature is 200°C or higher.
When using the cooled bearing bracket the following values shall be met:
▪ Cooling liquid quantity: approx.3.3 l/min
▪ Cooling liquid pressure: 10bar (max.)
6.1.8 Cooling of the heat exchanger
In "BR" operating mode the heat exchanger must be cooled.
Table16: Cooling liquid quantity [l/min]
Bearing bracket Speed
2900rpm 1450rpm
P02as 15 3
P03s, P03as 15 4
P04s, P04as 20 6

KSB HPK Series Specifications

General

Brand	KSB
Model	HPK Series
Category	Water Pump
Language	English