VLT
Vertical Process Pump
14 V1.090418
Figure 3.1. Correct position of the lifting ropes or chains, side view.
3.4 STORING
Storing any pump for any length of time presents a few challenges. Dirt, sand and moisture can cause
serious damage on parts with close clearances, such as running clearances between impellers and
cases and between bearings and shafting. Dirt and sand working their way through these areas can
result in wear and opening up of wear ring clearances to an extent that the efficiency of the pump
may be affected shortly after start up. Dirt and sand can also create excessive bearing wear that
increases the clearances between the bearings and shaft. This increased clearance can lead to
rubbing of other parts and eventual severe damage to the pump. Moisture in the pump can cause
rusting between running parts leading to increased clearances or even complete seizure inflicting
major damage to the pump. Depending on the amount of time the pump will remain in storage,
follow one of the two options mentioned below.
3.4.1 Short Term Storage (Six Months or Less)
If the pump is not installed immediately (within one month after shipping date), it should be safely
stored prior to installation in a dry location free of dirt and grit. The shipping cover on the discharge
flange should be left intact. Any small openings should be sealed with tape. The suction end of the
pump should be covered with a sheet of polyethylene or equal and sealed with tape. The pump
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