KSB Vitacast, Инструкция по установке и эксплуатации

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6 Commissioning/Start-up/Shutdown
41 of 80
Vitacast / Vitacast Bloc
Table 14: Permissible ambient temperatures
Permissible ambient temperature Value
Maximum 40 °C
Minimum See data sheet.
6.2.2 Frequency of starts
DANGER
Excessive surface temperature of the motor
Explosion hazard!
Damage to the motor!
▷
In case of explosion-proof motors, observe the frequency of starts specified in
the manufacturer's product literature.
The frequency of starts is usually determined by the maximum temperature increase
of the motor. This largely depends on the power reserves of the motor in steady-
state operation and on the starting conditions (DOL, star-delta, moments of inertia,
etc). If the starts are evenly spaced over the period indicated, the pump set can be
started up six times per hour (h) with the discharge-side gate valve slightly open.
CAUTION
Re-starting while motor is still running down
Damage to the pump (set)!
▷ Do not re-start the pump set before the pump rotor has come to a standstill.
6.2.3 Cleaning in place (CIP)
CAUTION
Elastomers do not have sufficient resistance
Damage to the pump!
▷
Effect cleaning/sterilisation only if the elastomer components used in the pump
(e.g. O-rings, mechanical seals) are made of EPDM or other approved materials.
Conditions CIP may be effected with the pump running or with the pump stopped.
Recommended flow velocity: between 2.5 and 3 m/s
Cleaning agent, cleaning
process
When performing CIP in the system the pump set is installed in, comply with the
concentration limits, temperature limits and contact times given below for the
cleaning agents and disinfectants:
Table 15: Cleaning sequence
Step Process Cleaning agent Temperature Contact time
[°C] [min]
1 Pre-flushing Water +15 to +25 10 to 15
2 Flushing Water +45 to +60 10
3 Flushing Washing lye +70 to +95 20 to 30
4 Intermediate flushing Water +60 max. 5 to 10
5 Flushing See table below 10 to 15
6 Flushing Water +15 to +25 10 to 15