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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.
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.
Hazardous voltage.
Can shock, burn or
cause death.
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:
1. Locate the pump as near as possible to the source of
supply to avoid excessive inlet pipe friction.
2. The inlet line must 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 should 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. For viscosities less
than 1,000 SSU (200 cP), the strainer should have a net
open area of at least four times the area of the intake
piping. For viscosities greater than 1,000 SSU (200 cP),
consult the strainer manufacturer instructions. Strainers
must be cleaned regularly to avoid pump starvation.
4. The intake system must be free of air 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 at start up.
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 1.
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 1
9. The use of an intake side check or foot valve is NOT
recommended. A properly sized check valve may be
installed near the pump discharge.
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 2. This arrangement allows for slight
shifting of position to accommodate alignment with the
mounting holes in the base plate. Refer to ANSI/HI
standards or a suitable pump handbook for information on
typical pump mounting and foundations.
Figure 2 -
Pipe Type
Anchor Bolt Box
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.
