Mounting / Installation; Mounting Of Pump / Unit; Connection Of Pipings To The Pump; Suction And Discharge Pipe - ITT MP Série Instructions De Montage, De Service Et De Maintenance

Installation, Operating and Maintenance Instruction

5. Mounting / Installation

5.1 Mounting of Pump / Unit

5.1.1 Mounting of pump on a base frame
The pump and motor (= pump unit) must be provided
with a base frame made of steel or cast iron or a
fabricated (welded) frame, where this does not exist
already or if it is not included in the delivery. This base
frame must be placed on a foundation which can
withstand all loads that arise during operation (refer to
chapter 5.1.2).
When mounting the pump onto the base frame the
following must to be noticed:
The base frame must be solid, so that there won't
occur any twists or vibrations during the operation.
The mounting surfaces of the pump feet and
motor on the base frame must be flat (machining
is recommended). Bracing of the pump leads to
premature breakdown of the pump and to a loss of
warranty.
The drillings for the pump mounting must be in
such a way, that safe fastening is guaranteed.
Between pump and motor shaft an adequate
space must be left depending on the used
coupling, refer to chapter 5.3.
Between pump and base frame there must be an
adequate shimming, so that in the case of
replacement of the pump the equal height
between bottom and centerline can be adjusted
(recommended vertical adjustment 4 to 6 mm).
Align pump and motor, refer to chapter 5.3, as
well.
5.1.2. Mounting the unit to a foundation
The place, where the pump is mounted must be
prepared acc. to the dimensions of the dimensional
drawings. The concrete foundations should have
sufficient firmness acc. to DIN 1045 or equal standard
(min. BN 15), to ensure a secure, functional mounting.
The concrete foundation must have set, before the
unit is errected. Ist surface must be horizontal and
even.
Sufficient space
maintenance and repair work, especially for
replacing the drive motor or the complete pump
unit. The motor fan must be able to take in
enough cool air, and the intake grille must
therefore be at least 10 cm away from any wall,
etc.
For the set of anchor bolts according recesses
must be provided. If that is not the case, concrete
expansion bolts resp. epoxy capsule anchor bolts
can be used.
When mounting the pump on the foundation it
must be adjusted at the discharge nozzle by
means of a spirit-level (at discharge nozzle). The
permitted deviation is 0,5 mm/m. After inserting
the foundation bolts they must be cast in the
foundation with concrete. After setting of the grout
the coupling alignment
according chapter
MP 100-english
Article No 771074011
must be provided
must be checked
5.3.1 and possible
page 85
misalignments must be corrected by adjusting
foundation frame in the area of the drive motor.
The smoothness of the base frame must be 0,5
mm/m before it is filled up resp. fastened. For
adjustment levelling shims or levelling screws
(optional, not delivered standard wise) can be
used. Levelling shims must be inserted next to the
foundation anchors and must lie plainly. After that
fasten foundation bolts symmetrically but only
slightly. Fill in base frame with non shrinking grout.
Notice:
Avoid air bubbles (e.g. by vibrating).
Check that the grout has properly set and
hardened.
Take care for the after-treatment of the concrete
acc. to DIN 1045.
After setting, tighten the foundation anchor evenly and
firmly. Check alignment of coupling acc. to chapter
5.3.1 and re-adjust, if necessary. Further, check that
all screws between pump / motor and the base frame
fit snugly.
Although the original MP-base frames are designed
solidly, the filling in of the adjusted base frame up to
the rim is recommended.
If vibrations are transmitted to the foundation from
adjoining components, it must be guarded through
adequate vibration damping padding (vibrations
from outside can impair the bearing).
To prevent
adjoining components, the foundation should be
laid on a suitable insulating base.
The size of these insulating pads will vary,
depending
therefore be determined by an experienced
specialist.

5.2 Connection of Pipings to the Pump

The pump must not be used as fixed point for
the piping. The permitted piping loads must not
for
be exceeded, refer to chapter 3.5.

5.2.1 Suction and discharge pipe

The pipes must be of a size and design that liquid
can flow freely into the pump and that the pump
functions without problems. Particular attention is
to be paid to ensuring that suction pipes are
airtight and that the NPSH values are observed.
Under suction lift condition laid the suction pipe in
the horizontal section towards the pump so that it
is slightly inclined upwards so that no air traps
occur. Under positive suction head condition
install the suction pipe work slightly declined
towards the pump. Do not install fittings or elbows
right before the suction nozzle.
If the suction supply is under vacuum and
entrained gas may be present in the liquid, it is
recommended that a vent line be considered
Model MP, MPA, MPAI
vibrations being transmitted
on circumstances, and
to
should
Revision 02
Issue 01/2007