Slurry Pump
WH03AA1AAA0en_03b.doc JAN 04-W08
General
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1.2.4 Long-term field storage
Minimum requirement for storage and maintenance of centrifugal type pumps on site
before their installation and start-up.
1. Medium term storage
Indoor storage of equipment is recommended in order to prevent the harmful effects of
exposed conditions, particularly in dust laden atmospheres.
The standard anti-rust protection provided prior to dispatch remains adequate for periods
not exceeding two months.
Whenever indoor storage is not possible, it is necessary to follow the guidelines given
below:
a) Locate the pump set with its bedplate on a concrete floor and supported on
wooden joists of approximately 100 mm x 100 mm in section.
b) Cover the pump set, whether located indoors or outdoors, with a strong,
waterproof cover extending down to the baseplate. The cover must be securely
fixed to withstand ambient weather conditions.
c) Prior to fitment of the cover, ensure that:-
i. all openings, including inlet and outlet apertures, are properly sealed, and;
ii. the bearing cylinder and drive are properly protected against dust.
2. Prolonged storage -up to 2 years
The following steps are essential in all cases where prolonged storage is foreseen:
a) The pumps are to be adequately warehoused in a closed dry and, if possible, a
temperature controlled building.
b) Every six months, the stuffing box/shaft seal sleeve area should be inspected,
cleaned and re-coated with a suitable anti-rust compound, if required.
c) If disassembly of the pump is not practical then proceed as follows:-
i. Desiccate the pump case with hot air at 35°C to 65°C.
ii. Seal all pump openings and attach sachets of hygroscopic salts (silica gel).
iii. During the desiccation with hot air, ensure that no other parts become
overheated as this may be detrimental.
d) The pump rotor should be turned over several times by hand at intervals not
exceeding one month.
e) The bearing grease should be checked at least once every twelve months.
f) The bearing cylinder must be disassembled, cleaned and regreased prior to
reassembly at least once every 24 months.