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INSTALLATION
NOTICE:
BLACKMER PUMPS MUST ONLY BE INSTALLED IN
SYSTEMS DESIGNED BY QUALIFIED ENGINEERING
PERSONNEL. SYSTEM DESIGN MUST CONFORM WITH
ALL APPLICABLE REGULATIONS AND CODES AND
PROVIDE WARNING OF ALL SYSTEM HAZARDS.
Hazardous voltage.
Can shock, burn or
cause death.
Install, ground and wire to local and
National Electrical Code requirements.
Install an all-leg disconnect switch near
the unit motor.
Disconnect and lockout electrical power
before installation or service
Electrical supply MUST match motor
nameplate specifications.
Motors equipped with thermal protection automatically
disconnect motor electrical circuit when overload exists.
Motor can start unexpectedly and without warning.
PRE-INSTALLATION CLEANING
NOTICE:
NEW PUMPS CONTAIN RESIDUAL TEST FLUID AND
RUST INHIBITOR. IF NECESSARY, FLUSH PUMP PRIOR
TO USE.
Foreign matter entering the pump WILL cause extensive
damage. The supply tank and intake piping MUST be cleaned
and flushed prior to pump installation and operation.
LOCATION AND PIPING
Pump life and performance will be significantly reduced when
installed in an improperly designed system. Before starting the
layout and installation of the piping system, review the
following suggestions:
1. Locate the pump as near as possible to the source of
supply to avoid excessive inlet pipe friction.
2. The inlet line should be at least as large as the intake port
on the pump. It should slope downward to the pump, and
should not contain any upward loops. Eliminate
restrictions such as sharp bends; globe valves,
unnecessary elbows, and undersized strainers.
3. A strainer must be installed in the inlet line to protect the
pump from foreign matter. The strainer should be located
at least 24" (0.6m) from the pump, and have a net open
area of at least four times the area of the intake piping.
Strainers must be cleaned regularly to avoid pump
starvation.
4. The intake and discharge piping system must be free of all
leaks.
5. Expansion joints, placed at least 36" (0.9m) from the
pump, will compensate for expansion and contraction of
the pipes. Contact the flexible connector/hose
manufacturer for required maintenance/care and design
assistance in their use.
6.
Install pressure gauges in the NPT ports provided in the
pump casing to check pump performance at startup.
7. ALL piping and fittings MUST be properly supported to
prevent any piping loads from being placed on the pump.
8. Check alignment of pipes to pump to avoid strains which
might later cause misalignment. See Figure 2. Unbolt
flanges or break union joints. Pipes should not spring
away or drop down. After pump has been in operation for
a week or two, completely recheck alignment.
Figure 2
9. When pumping liquids at elevated temperature, provisions
should be made to compensate for expansion and
contraction of the pipes, especially when long pipe lines
are necessary. Steel pipe expands approximately 3/4”
(1.9 cm) per 100 feet (30.49 m) per 100°F (37.8°C) rise in
temperature.
CHECK VALVES
The use of check valves or foot valves in the supply tank is not
recommended with self-priming, positive displacement pumps.
If the possibility of liquid backflow exists when the pump is off,
a check valve in the pump discharge piping is recommended
because the pump can motor in the reverse rotation and
create undue stress on all attached components. Never start
a pump when it is rotating in the reverse rotation as the added
starting torque can damage the pump and related equipment.
PUMP MOUNTING
A solid foundation reduces noise and vibration, and will
improve pump performance. On permanent installations it is
recommended the pumping
unit be secured by anchor
bolts as shown in Figure 3.
This arrangement allows for
slight shifting of position to
accommodate alignment with
the mounting holes in the
base plate.
For new foundations, it is
suggested that the anchor
bolts be set in concrete.
When pumps are to be
located on existing concrete
floors, holes should be drilled
into the concrete to hold the
anchor bolts.
When installing units built on
channel or structural steel
type bases, use care to avoid twisting the base out of shape
when anchor bolts are tightened. Shims should be used under
the edges of the base prior to tightening of the anchor bolts to
prevent distortion.
Figure 3 –
Pipe Type Anchor Bolt
BOLT
BASE
STANDARD
PIPE
WASHER
Summary of Contents for XLW1 1/2
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