KRAL DKC Series - Recommissioning; Recommissioning the pump station

10 Operation
10.5 Recommissioning
Carry out the following measures during operation interruptions.
Scope of the operation interruption Measure
o Pump station shut down for longer period Depending on the pumped liquid
o Pump station drained Close the pressure- and suction-side shut-off
devices.
o Pump station dismantled Disconnect the motors from the power sup-
ply and secure against being switched back
on.
o Pump station stored Observe measures for storing and preserva-
tion Ä Transportation, storage,Page17.
Tab.14: Measures during operation interruptions
Behaviour of the pumped li-
quid
Duration of the operation interruption
Short Long
o Solids sediment Flush the pump station. Flush the pump station.
o Congealed/frozen
o No corrosive burden
Heat or drain the pump sta-
tion.
Drain the pump station.
o Congealed/frozen
o Corrosive burden
Heat or drain the pump sta-
tion.
1. Drain the pump station.
2. Preserve the pump station.
o Remains liquid
o No corrosive burden
– –
o Remains liquid
o Corrosive burden
–
1. Drain the pump station.
2. Preserve the pump station.
Tab.15: Measures depending on the behaviour of the pumped liquid
Drain the pump station via the pressure line, suction line, vent screws and screw plugs.
10.5 Recommissioning
10.5.1 Recommissioning the pump station
Carry out all the steps as for the commissioning process, Ä Commissioning,Page30.
Operating instructions
OID 02en-GB Edition 2019-11
37