Flowserve Guardian Sealless Metallic - Manual (Page 17)

GUARDIAN USER INSTRUCTIONS ENGLISH 71569212 08-11
Page 17 of 68 flowserve.com
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:
•
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/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.
•
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’s
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.
4.3.2
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 Guardian G & H series 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.”
4.3.2.1 Stilt mounted baseplate assembly
instructions
Refer to Figure 4-3.
a) Raise or block up baseplate/pump above the floor
to allow for the assembly of the stilts.
b) Predetermine or measure the approximate
desired height for the baseplate above the floor.
c) Set the bottom nuts (item 2) above the stilt bolt
head (item 1) to the desired height.
d) Assemble lock washer (item 3) down over the stilt
bolt.
e) Assemble the stilt bolt up through hole in the
bottom plate and hold in place.
f) Assemble the lock washer (item 3) and nut (item 2)
on the stilt bolt. Tighten the nut down on the lock
washer.
g) After all four stilts have been assembled, position
the baseplate in place, over the floor cups (item
4) under each stilt location, and lower the
baseplate to the floor.
h) Level and make final height adjustments to the
suction and discharge pipe by first loosening the
top nuts and turning the bottom nuts to raise or
lower the baseplate.
i) Tighten the top and bottom nuts at the lock
washer (item 3) first then tighten the other nuts.
j) It should be noted that the connecting pipelines
must be individually supported, and that the stilt
mounted baseplate is not intended to support
total static pipe load.
Figure 4-3: Assembly – baseplate stilt
4.3.2.2
Stilt/spring mounted baseplate assembly
instructions
Refer to Figure 4-4
a) Raise or block up baseplate/pump above the floor
to allow for the assembly of the stilts.
b) Set the bottom nuts (item 4) above the stilt bolt
head (item 1). This allows for 51 mm (2 in.)
upward movement for the final height adjustment
of the suction/discharge flange.