Flowserve Polybase baseplates - Manual (Page 11)

Polybase Baseplate INSTRUCTIONS ENGLISH 71569284 – 12-10
Page 11 of 24 flowserve.com
4 INSTALLATION
Equipment operated in hazardous locations
must comply with the relevant explosion protection
regulations. See section 1.6.4, Products used in
potentially explosive atmospheres.
4.1 Location
The baseplate 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 pumps 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 baseplate is shipped, all threads and all
openings are covered. This protection/covering
should not be removed until installation. If, for any
reason, the baseplate 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.
The Polybase baseplate is solid and has a thick
cross-section so it can be both grouted in place and
stilt mounted.
Regardless of the type of baseplate used, it must
provide certain functions that ensure a reliable
installation. Three of these requirements are:
•
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.
•
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.
Flowserve’s experience indicates that a baseplate
that has a top surface flatness of 1.25 mm / meter
(0.015
inch / foot) 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 0.42 mm/m
(0.005 in./ft) is offered on the Flowserve Polybase
baseplate.
•
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. If a pump and motor assembly
is provided with the baseplate, Flowserve’s