General Information; Installation Recommendations - Crown CT4QP Series Installation And Operation Manual

Self-priming centrifugal pumps diesel units with auto-prime system
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SECTION B: GENERAL INFORMATION
B-1) To the Purchaser:
Congratulations! You are the owner of one of the finest
pumps on the market today. Barnes
engineered and manufactured of high quality components.
Over ninety-nine years of pump building experience along with
a continuing quality assurance program combine to produce a
pump which will stand up to the toughest sewage removal
projects. This Barnes Pumps, Inc. manual will provide helpful
information concerning installation, maintenance, and proper
service guidelines.
B-2) Receiving
Upon receiving the pump, it should be inspected for damage or
shortages. If damage has occurred, file a claim immediately
with the company that delivered the pump. If the manual is
removed from the crating, do not lose or misplace.
B-3) Storage
Short Term- Barnes Pumps are manufactured for efficient
performance following long inoperative periods in storage. For
best results, pumps can be retained in storage, as factory
assembled, in a dry atmosphere with constant temperatures for
up to six (6) months.
Long Term- Any length of time exceeding six (6) months, but
not more than twenty four (24) months. The units should be
stored in a temperature controlled area, a roofed over walled
enclosure that provides protection from the elements (rain,
snow, wind blown dust, etc..), and whose temperature can be
maintained between +40 deg. F and +120 deg. F.
If extended high humidity is expected to be a problem, all
exposed parts should be inspected before storage and all
surfaces that have the paint scratched, damaged, or worn
should be recoated with a water base, air dry enamel paint. All
surfaces should then be sprayed with a rust-inhibiting oil.
B-4) Service Centers:
For the location of the nearest Barnes Pumps Service Center,
check your catalog, your Barnes Pumps, Inc. representative or
Barnes Pumps, Inc. Service Department in Piqua, Ohio,
telephone (937) 778-8947 or Crane Pumps & Systems Canada
Inc., Bramton, Ontario (905) 457-6223.
SECTION C: INSTALLATION RECOMMENDATIONS
1.Locate the pump as close to the source of supply as possible.
Although the pump will operate on suction lifts of 25 feet, it is
desirable to keep the suction lift less than 15 feet, if possible.
The closer the pump can be located to the source of supply,
the faster the pump will prime and a greater capacity can be
pumped.
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Pumps are products
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2. Locate the pump on a firm footing to make sure the pump
will not move due to vibration. Pumps improperly placed or
blocked have been known to fall into the well or pit when the
suction line was full of liquid.
IMPORTANT !
PUMP MUST BE LEVEL TO PROVIDE FAVORABLE
OPERATING CONDITIONS AND PROPER OIL
LUBRICATION.
3. It is advisable to use a suction line of the same size as the
pump port size. On low suction lifts, it is sometimes possible to
increase capacity slightly by oversizing the suction line. Using
a smaller suction line than the pump port size can cause
internal damage to the pump.
4. Make sure that the suction line does not have pin holes in it.
The smallest air leak in the suction line may prevent the pump
from priming. Coat all threaded connections in the suction line
with pipe thread compound to insure an air tight joint. In
addition, suction flanges should be pulled up tight to prevent
air leaks. Where fiber gaskets are used, coat them with grease.
5. Use a strainer on suction line to prevent the entrance of
oversize solids. This strainer should be submerged deep
enough to prevent air from being drawn into the suction line,
thus reducing the pumps capacity and pressure.
6. The air bleed line should be one inch in order to reduce the
priming time to a minimum. This is mandatory on force main
installations.
7. To eliminate recirculation, a flow control device on the bleed
line may be considered.
8. An optional air-bleed valve may be placed in this line, but it
is not necessary. A clear plastic line is excellent, allowing the
operator to detect any clogging.
9. There are two ways of returning this line to the pit: (a) The
line discharging above the liquid level. (b) The line discharging
below the low liquid level. The (a) condition is generally
accepted, but has the disadvantage of losing its prime if the
suction check valve is held open by debris. This is generally no
problem at higher speeds (1600 rpm or higher). The (b)
condition works well for slower speeds where considerable
debris is encountered. However, the pipe should not project
more than one foot below the low liquid level. If there are no
leaks in the system, the pump never loses prime.

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Ct6qp series

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