6 Commissioning/Start-up/Shutdown
36 of 68
Multitec A SX
6.2.5 Abrasive fluids
Do not exceed the maximum permissible solids content specified in the data sheet.
When the pump handles fluids containing abrasive substances, increased wear of the
hydraulic system and the shaft seal are to be expected. In this case, reduce the
intervals commonly recommended for servicing and maintenance.
6.3 Shutdown/storage/preservation
6.3.1 Measures to be taken for shutdown
The pump (set) remains installed
ü
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.
NOTE
Prolonged shutdown periods should be avoided in the case of pumps in material
variants 10, 13, 17, 20, 21 and 27 (cast-iron hydraulics), particularly if the pumps are
handling aggressive water qualities (high oxygen content). In such cases, the pump
should remain filled, and the operation check run should be performed at least
every other day.
NOTE
The stage casings of horizontal pumps can only be drained completely through the
drain plugs provided on the stage casings (optional). If this is not possible we
recommend to proceed as described in the following section.
The pump (set) is removed from the pipe and stored
ü
The pump has been properly drained and the safety instructions for dismantling
the pump have been observed.
1.
Fill the pump with a water-repellent preservative (e.g. RUSTELO DEWATERING
924, producer: CASTROL; OSYRIS DW, producer: TOTAL; or equivalent).
2.
Turn the pump rotor by hand several times, to ensure even distribution of the
preservative.
CAUTION
Glycol-base preservatives (e.g. KLÜBERTOP K 01-601)
Corrosion damage on surfaces not treated with preservative
▷
Do not drain the preservative if the pump is stored for a longer period.
▷
Completely fill the pump with preservative for storage.
▷
Do not drain the preservative until immediately before the pump is returned to
service.
(The preservative can be re-used if water content < 20%.)
3.
Drain the pump and close the suction and discharge nozzle, respectively.
4.
Oil or grease all blank parts and surfaces of the pump (with silicone-free oil or
grease) to protect them against corrosion.
Observe any additional instructions and information provided.
(
ð
Section 3.2, Page 13)
6.4 Returning to service
For returning the pump to service observe the sections on commissioning/start-up
(
ð
Section 6.1, Page 29)
and the operating limits
(
ð
Section 6.2, Page 34)
.
Summary of Contents for Multitec A SX
Page 1: ...Sprinkler Pump Multitec A SX Installation Operating Manual ...
Page 67: ......
