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5. Start-up / shut-down
5.1 Start-up
5.1.1 Check application conditions
Check the application conditions of the pump in this way:
1. Compare the data of the following documents with the
provided application condition of the pump:
- purchasing documents (confirmation of the order)
- nameplate
- operating manual.
2. Make sure that the pump will operate under the
mentioned conditions only. These conditions include (e.
g.) pressure, temperature, liquid pumped.
5.1.2 Starting up the pump
Start up the pump in this way:
1. Check tightness of connections.
2. Make sure that all safety equipment is installed.
3. Make sure that all electrical connections are correct.
4. Open the control valves in the system.
5. Fill the pump together with the system.
6. Vent the pump and system.
7. Fully open the control valve on the suction side.
8. Close the control valve on the discharge side.
9. Start the pump.
10. Slowly open the control valve on discharge side.
C A U T I O N
!
Overheating and pressure overloading!
S
Damage to property.
Z
Never operate the pump against a closed shut-off device.
Operation with a shut-off device must not continue for
longer than 30 seconds.
If delivery head does not rise after the pump has been
turned on:
1. Switch off the pump.
2. Vent the pump (system) again.
3. Repeat steps 7. to 10. above.
5.1.3 Leakage check of mechanical seal
Check the function of the mechanical seal in this way:
1. Watch the pump and check the mechanical seal for a
leakage.
An intact mechanical seal operates virtually without
leakage.
If liquid pumped or flushing liquid leak:
1. Switch off the pump.
2. Replace the mechanical seal.
Observe chapter 6.4.3 on page 27.
Overview
This section describes how to start up and shut down the pump. You get to know which inspections contribute to
failure-free operation and increased life of the pump.
