NOTE
Solids, especially long fibres, plastic residues or similar, can lead to clogging of the
barrier or flushing lines and to mechanical seal damage.
6.3 Shutdown/storage/preservation
CAUTION
Corrosion caused by stagnant aggressive fluids, e.g. fluids containing chloride
Damage to the pump!
▷ Every 24 hours operate the pump for a minimum of 30 minutes or flush it with
clean, pure water.
10)
The pump (set) remains installed
✓ Sufficient fluid is supplied for the operation check run of the pump.
1. Start up the pump (set) regularly between once a month and once every three
months for approximately five minutes during prolonged shutdown periods.
This will prevent the formation of deposits within the pump and the pump
intake area.
The pump (set) is removed from the pipe and stored
✓ The pump has been properly drained (⇨ Section 7.3 Page 53) and the safety
instructions for dismantling the pump have been observed.
1. Spray-coat the inside wall of the pump casing, and in particular the impeller
clearance areas, with a preservative.
2. Spray the preservative through the suction and discharge nozzles.
It is advisable to close the pump nozzles (e.g. with plastic caps or similar).
3. Oil or grease all exposed machined parts and surfaces of the pump (with
silicone-free oil and grease, food-approved if required) to protect them against
corrosion.
Observe the additional instructions (⇨ Section 3.3 Page 14) .
6.4 Returning to service
For returning the pump to service observe the sections on commissioning/start-up
and the operating limits.
In addition, carry out all servicing/maintenance operations before returning the
pump (set) to service.
WARNING
Failure to re-install or re-activate protective devices
Risk of personal injury from moving parts or escaping fluid!
▷ As soon as the work is complete, re-install and/or re-activate any safety-relevant
and protective devices.
NOTE
On pumps/pump sets older than 5 years we recommend replacing all elastomer
seals.
10)
E.g. drinking water or demineralised water
6 Commissioning/Start-up/Shutdown
46 of 94
Omega / Omega V
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