Flowserve APKD - Manual (Page 24)

APKD DOUBLE-CASE, DOUBLE-SUCTION USER INSTRUCTIONS 26999903 07-13
Page 24 of 55 flowserve.com
Example of a pump installed with a suction barrel.
Figure 4.7
DISCHARGE
HEAD FLANGE
372
373
374
CONCRETE
FOUNDATION
315
101
304
4.3.4 Leveling of pumps with suction barrel
mounted on a soleplate
Bolt the soleplate [23] to the bottom of the suction
barrel plate. Then proceed to level the barrel mounting
surface per paragraph 4.3.3.
Example of pump with a suction barrel mounted on a
soleplate
Figure 4.8
4.4 Grouting
Where applicable, grout in the foundation bolts.
After adding pipe work connections and re-checking
the coupling alignment, the mounting plate/soleplate
should then be grouted in accordance with good
engineering practice. If in any doubt, please contact
Flowserve service center for advice.
Grouting provides solid contact between the pump
unit and foundation that prevents lateral movement of
running equipment and dampens resonant vibrations.
Foundation bolts should only be fully
tightened after the grout has been cured.
4.5 Initial Alignment
4.5.1 Thermal
expansion
The pump and motor will normally
have to be aligned at ambient temperature and
should be corrected to allow for thermal expansion at
operating temperature. In pump installations
involving high liquid temperatures, the unit should be
run at the actual operating temperature, shut down
and the alignment checked immediately.
4.5.2 Preparation
before alignment
To ensure proper alignment the following items are
very important.
a) All machined mating surfaces (such as the
mating flanges of pump and motor) must be
clean and free of burrs and nicks.
b) Exterior strain must not be transmitted to the
pump. The most common cause of trouble is
forcing the piping to mate with the pump. It is
recommended that flexible connectors be installed
in the piping adjacent to the pump.
c) All threads should be checked for damage and
repaired if necessary. Lubricate all threaded
connections with a suitable thread lubricant (an
anti-galling compound).
4.5.3 Alignment
methods
Ensure pump and driver are isolated
electrically and the half couplings are disconnected.
The alignment MUST be checked.
Although the pump will have been aligned at the
factory it is most likely that this alignment will have
been disturbed during transportation or handling.
If necessary, align the motor to the pump, not the
pump to the motor.
The motor assembly may also have to be
adjusted in the horizontal direction to line up the
driver and shaft centers. Alignment screws are
provided to lock the motor assembly in its final
aligned position.
374
372
373
CONCRETE
FOUNDATION
315
101
304
SOLE
PLATE
DISCHARGE
HEAD FLANGE
23