IOM/GK(P)/CONICAL ISSUE DATE: 10.11.2015
Page 17 LAST REV. DATE: 01.08.2019
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By adding or removing shims under the base, level the pump shaft and
flanges. The base plate does not have to be leveled. Draw foundation
bolt nuts tight against base plate and observe pump and motor shafts or
coupling hubs for alignment.
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Check to make sure the piping can be aligned to pump flanges without
placing pipe strain on either flange.
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Grout base plate in completely and allow grout to dry thoroughly before
attaching piping to pump (24 hours is sufficient time with approved
grouting procedure).
3.1.7 Grouting procedure
Grout compensates for uneven foundation, distributes weight of unit and
prevents shifting. Use an approved, non-shrinking grout as follows, after
setting and leveling unit
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Build strong form around foundation to content grout.
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Soak top of concrete foundation thoroughly, then remove surface water.
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Base plate should be completely filled with grout and, if necessary, drill
vent holes to remove trapped air.
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After grout has thoroughly hardened, check the foundation bolts and
tighten if necessary.
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Check the alignment after the foundation bolts are tightened.
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Approximately 14 days after the grout has been poured or when the
Grout has thoroughly dried, apply an oil base paint to the exposed edges
of the grout to prevent from air and moisture coming in contact with the
grout.
3.1.8 Suction and Discharge Piping
When installing the pump piping, make sure to observe the following
precautions:
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Piping should always run to the pump. Do not move pump to pipe. This
could make final alignment impossible.
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Both suction and discharge piping should be supported independently and
close to pump so that no strain is transmitted to the pump when the
flange bolts are tightened.
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Use pipe hangers or other supports at necessary intervals to provide
support. When expansion joints are used in the piping system, they must
be installed beyond the piping supports close to the pump.
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It is advisable to increase the size of both suction and discharge pipes at
the pump connection to decrease the loss of head from friction.
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Install piping as straight as possible, avoiding unnecessary bends. Where
necessary, use long sweep 90 degrees bend to decrease friction losses.
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Make sure that all piping joints are air tight. Provide pipe expansions
bellows when hot fluids are to be pumped. Where reducers are used,
