Flowserve QLQ Vertical Worthington User Manual
Page 24
QLQ, QLQC USER INSTRUCTIONS ENGLISH 87900027 – 06/14
Page 24 of 61
Figure 4.3 illustrates an alternative foundation bolt
arrangement which can be used in lieu of standard
foundation bolts. Notice the large washer with lugs at
the bottom. It should be welded to the bolt and pipe
sleeve to prevent turning.
Allow a little more than the specified threaded bolt
length above the rail of the foundation plate. The
excess can always be cut off if it is not needed.
A rough finish top surface is best when applying
grout.
4.3.1 Leveling of pumps with suction barrel
4.3.1.1 Pumps equipped with foundation plate
Figure 4.4
The soleplate is installed on the foundation and
aligned with the anchor bolts. Level the soleplate
with the help of a machinist’s level to within 0.25 mm
per m (0.0035 in. per ft.). Grout the plate. Cure and
allow grout to set for 72~80 hours. Tighten the nuts
Lower the suction barrel into the pit and level again
with respect to the soleplate to within 0.25 mm per m
(0.0035 in. per ft.). The pump is now lowered into the
suction barrel and installed.
4.3.1.2 Pumps equipped without foundation plate
DISCHARGE
HEAD FLANGE
CONCRETE
FOUNDATION
Figure 4.5
The suction barrel is first lowered into the pit and
aligned with the anchor bolts. The suction barrel flange
is leveled by using a master level or a precision
machinist’s level. Levels should be taken on the
equipment mounting surfaces. The suction barrel
flange mounting surface needs to be leveled to within
0.25 mm per m (0.0035 in. per ft.) using shims and
grouted. Allow the grout to set for at least 72~80 hours
before the pump is installed. Check the barrel
mounting surface level after the grout is set and then
proceed with the pump installation. Lower the pump
assembly into the pit and align the discharge head
flange bolt holes to the anchor bolts.
4.3.2 Leveling of pumps in wet pit (sump)
4.3.2.1 Pump equipped with support beams
Figure 4.6
Some pumps are mounted on two beams supporting
the suction head. The beams are fixed through bolts
to plates, that need to be grouted, that act as
soleplate.