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5.2 Shut-down
5.2.1 Shutting down the pump
C A U T I O N
!
Pressure surge!
S
Death, serious bodily injury, damage to property.
Z
Always close shut-off devices slowly!
What is a pressure surge?
A pressure surge (water hammer) is an abruptly pressure
increasing in the system. This pressure increasing can -
among other causes - be caused by a quick blocking of the
flow in the discharge pipe. In case of a pressure surge, the
pressure is rised to many times of the max. permitted pump
pressure.
Shut down the pump in this way:
1. Close the control valve on the discharge side.
2. Switch off the pump.
3. Close the control valve on the suction side.
4. Switch off the flushing system
1
.
5. Make sure that the pump is depressurised.
5.2.2 Cleaning the pump after shut-down
C A U T I O N
!
Jamming!
S
Damage to property.
Z
Clean the pump appropriately after shut down.
1.
only for double mechanical seal or quench design
