GENERAL INSTRUCTIONS
FOR INSTALLATION, OPERATION
& MAINTENANCE OF
KIRLOSKAR CENTRIFUGAL PUMPS
WARNING
The equipment supplied is designed for specific capacity, speed, pressure and temperature. Do not use the
equipment beyond the capacities for which it is manufactured. The equipment manufactured is also shop
tested for the satisfactory performance and if it is operated is excess of the conditions for which it is
manufactured, the equipment will be subject to excessive stresses and strains.
LOCATION
The pump should be located as near the liquid source as possible. This will minimise the suction lift and pump
will give better performance.
Ample space should be provided on all sides so that the pump can be inspected while in operation and can be
serviced conveniently whenever required.
FOUNDATION
The foundation should be sufficiently substantial to absorb any vibration and to form a permanent rigid
support for the base plate. This is important in maintaining the alignment of a direct connected unit. A
concrete foundation on a solid base is advisable. Foundation bolts of the proper size should be embedded in
the concrete located by a drawing or template. A pipe sleeve about two and one-half diameter larger that the
bolt should be used to allow movement for the final position of the foundation bolts.
ALIGNMENT
Pumps and drivers that are supplied by the manufacturers, mounted on a common base plate are accurately
aligned before despatch. However as the alignments are likely to be disturbed during transit to some extent
and therefore must not be relied upon to maintain the factory alignment. Re-alignment is necessary after the
complete unit has been levelled on the foundation and again after the grout has been set and foundation bolts
have been tightened. The alignment must be checked after the unit is piped up and re-checked periodically.
FLEXIBLE COUPLING
A flexible coupling will not compensate for misalignment of the pump and driver shafts. The purpose of the
flexible coupling is to compensate for temperature changes and to permit the movement of the shafts without
interference with each other while transmitting power from the driver to the pump.
TYPE OF MISALIGNMENT
(SEE FIGURE 1)
There are two types of misalignment between the pump shaft and the driver shaft.
(a) Angular misalignment : Shafts with axis concentric but not parallel.
(b) Parallel misalignment : Shafts with axis Parallel but not concentric.
LEVELLING THE UNIT
When the unit is received with the pump and driver mounted on the base plate, it should be placed on the
foundation and the coupling halves disconnected. The coupling should not be reconnected until all alignment
operations have been completed. The base plate must be supported evenly on wedges inserted under the four
corners so that it will not be distorted or sprung by the uneven distribution of the weight. Adjust the wedges
until the shafts of the pump and driver are in level. Check the coupling faces, suction and discharge flanges
for the horizontal or vertical position by means of spirit level.
FLEXIBLE COUPLING ALIGNMENT
(SEE FIGURE2)
The two halves of the coupling should be at least 4 mm apart so that they cannot touch each other when the
driver shaft is rotated. Necessary tools for approximately checking are straight-edge and on an outside caliper.
Figure 1
PARALLEL MISALIGNMENT
ANGULAR MISALIGNMENT
Содержание 65-DSM 315M
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