Flowserve M-series PolyChem - Manual (Page 15)

USER INSTRUCTIONS PolyChem M-SERIES ENGLISH 71569218 07-11
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Page 15 of 60
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4 INSTALLATION
4.1 Location
The pump should be located to allow room for access,
ventilation, maintenance, and inspection with ample
headroom for lifting and should be as close as
practicable to the supply of liquid to be pumped.
Refer to the general arrangement drawing for the
pump set.
4.2 Part assemblies
The supply of motors and baseplates are optional.
As a result, it is the responsibility of the installer to
ensure that the motor is assembled to the pump and
aligned as detailed in section 4.5 and 4.8.
4.3 Foundation
4.3.1
Protection of openings and threads
When the pump is shipped, all threads and all
openings are covered. This protection/covering
should not be removed until installation. If, for any
reason, the pump is removed from service, this
protection should be reinstalled.
4.3.2
Rigid baseplates - overview
The function of a baseplate is to provide a rigid
foundation under a pump and its driver that maintains
alignment between the two. Baseplates may be
generally classified into two types:

Foundation-mounted, grouted design. (Figure 4-1)

Stilt mounted, or free standing. (Figure 4-2.)
Figure 4-1
Figure 4-2
Baseplates intended for grouted installation are
designed to use the grout as a stiffening member.
Stilt mounted baseplates, on the other hand, are
designed to provide their own rigidity. Therefore the
designs of the two baseplates are usually different.
Regardless of the type of baseplate used, it must
provide certain functions that ensure a reliable
installation. Three of these requirements are:
1.
The baseplate must provide sufficient rigidity to
assure the assembly can be transported and
installed, given reasonable care in handling,
without damage. It must also be rigid enough
when properly installed to resist operating loads.
2. The baseplate must provide a reasonably flat
mounting surface for the pump and driver.
Uneven surfaces will result in a soft-foot
condition that may make alignment difficult or
impossible. Experience indicates that a
baseplate with a top surface flatness of 1.25
mm/m (0.015 in./ft) across the diagonal corners
of the baseplate provides such a mounting
surface. Therefore, this is the tolerance to which
we supply our standard baseplate. Some users
may desire an even flatter surface, which can
facilitate installation and alignment. Flowserve
will supply flatter baseplates upon request at
extra cost. For example, mounting surface
flatness of 0.17 mm/m (0.002 in./ft) is offered on
the Flowserve Type E “Ten Point” baseplate
shown in Figure 4-1.
3. The baseplate must be designed to allow the
user to final field align the pump and driver to
within their own particular standards and to
compensate for any pump or driver movement
that occurred during handling. Normal industry
practice is to achieve final alignment by moving
the motor to match the pump. Flowserve
practice is to confirm in our shop that the pump
assembly can be accurately aligned. Before
shipment, the factory verifies that there is
enough horizontal movement capability at the
motor to obtain a “perfect” final alignment when
the installer puts the baseplate assembly into its
original, top leveled, unstressed condition.
4.3.3
Stilt and spring mounted baseplates
Flowserve offers stilt and spring mounted baseplates.
(See Figure 4-2 for stilt mounted option.) The low
vibration levels of PolyChem pumps allow the use of
these baseplates - provided they are of a rigid
design. The baseplate is set on a flat surface with no
tie down bolts or other means of anchoring it to the
floor.
General instructions for assembling these baseplates
are given below. For dimensional information, please
refer to the appropriate Flowserve “Sales print.”