Xylem AC Fire Pump 8100 Series, Installation, Operation And Maintenance Manual

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AC6102 Rev 0
5
20
Fig. 15 Cover installation
WARNING
Do not operate coupling without proper
lubrication.
CAUTION
Ensure that the lube plugs are installed in the
cover.
Fig. 16 Misalignment and End Float
Installation Limits
Size
Parallel
Offset (P)
Angular
(x-y)
Hub Gap
± 10%
End Float
(Min) 2 x F
MAX
INCH
MAX
mm
MAX
INCH
MAX
mm
MAX
INCH
MAX
mm
MAX
INCH
MAX
mm
1040T 0.01 0.15 0 0.08 0.13 3 0.21 5.36
1050T 0.01 0.20 0 0.10 0.13 3 0.21 5.38
1060T 0.01 0.20 0.01 0.13 0.13 3 0.26 6.55
1070T 0.01 0.20 0.01 0.13 0.13 3 0.26 6.58
1080T 0.01 0.20 0.01 0.15 0.13 3 0.29 7.32
Table 5 Misalignment and End float
SIZE
Cover
Fastener
Tightening
Torque
Maximum
Allowable
Speed
(rpm)
Lube Wt.
in.lb Nm oz g
1040T 100 11.3 3600 1.90 54
1050T 200 22.6 3600 2.40 68
1060T 200 22.6 3600 3.00 86
1070T 200 22.6 1800 4.00 114
1080T 200 22.6 1800 6.10 172
Table 5 Continued
7.6 Pipe connections
CAUTION
Do not draw piping into place by using force
at the flanged connections of the pump. Pipe
strain adversely affects the operation of the
pump, which could result in serious injury or
damage.
7.6.1 Suction and discharge piping general
precautions
When installing the pump piping, be sure to observe the
following precautions:
1. Piping should always be run to the pump.
2. Do not move pump to pipe. This could make final
alignment impossible.
3. Use pipe hangers or other supports at necessary
intervals to provide support.
4. When expansion joints are used in the piping system
they must be installed beyond the piping supports
closest to the pump.
5. It is usually advisable to increase the size of both
suction and discharge pipes at the pump connections to
decrease the loss of head from friction.
6. Install piping as straight as possible, avoiding
unnecessary bends. Where necessary, use 45° or long
radius 90° fittings to decrease friction losses.
7. Make sure that all piping joints are air-tight.
8. Where flanged joints are used, assure that inside
diameters match properly.
9. Remove burrs and sharp edges when making up joints.
Maximum forces and moments allowed on the pump flanges
vary with the pump size and series. To minimize these
forces and moments that may, if excessive, cause
misalignment, hot bearings, worn couplings, vibration and
premature pump failure, the following should be observed:
1. Prevent excessive external pipe loading.
2. Never “spring” piping when making any connections.
3. Anchor independently both the suction and discharge
piping near the pump and properly aligned so that no
strain is transmitted to the pump when the flange bolts
are tightened.
4. Do not install expansion joints next to the pump or in
any way that would cause a strain on the pump resulting
from system pressure changes. It is recommended that
tie bolts and spacer sleeves should be used with
expansion joints to prevent pipe strain.
The tables in 7.6.2 summarize the maximum forces and
moments allowed on 8100, 8150, 8200, and 9100 series
Horizontal Split Case fire pump casing.