
IPR, IPRT
5
5 Installation
The design of the pipe systems, anchorings
and other installation areas corresponds to
other parties. KSB ITUR only offers details and comments as
a help, but does not assume any responsibility with regards to
the design, assembly and operation of any installation. We
recommend that customers should check with a specialist in
the design of castings, pipes, wells, etc, to supplement and
interpret the information provided by KSB ITUR and to ensure
proper operation.
5.1 Check before assembly
Before positioning, check that the assembly base is in line with
the dimensional plan of the equipment.
The upper surface of the base must be horizontal and flat.
If the anchor pins are to be placed in existing holes, place the
anchor pins in their orifices suspended from the pump.
Do not connect the suction and discharge nozzles until the
equipment is completely installed on its base.
5.2 Group positioning
5.2.1 Vertical groups
Levelling
Use a spirit level to level the equipment. Use wedges to alter
the height at different points. The maximum deviation
permitted is 0.2 mm/m.
The separation between the two coupling halves must be
maintained.
The equipment must always be aligned after
mounting and preparing for start up.
Pump - motor alignment
The equipment is aligned at factory, and this alignment must
never be lost. The following instructions must be followed
when dismounting or returning the motor:
- Check that the flange support surface of the motor
support and of the motor itself are perfectly clean and
smooth.
- Check the correct separation between the two halves of
the coupling.
Check that the alignment between both shafts is correct by
turning the equipment by hand.
5.3 Pipe flange
In no case can the pump be used as a fixed point for the
pipes.
The pipe system must at no time exercise force (due
to connection, thermal variation, etc.) greater than
those permitted in the pump.
The short pipes must be of at least the diameter of the pump
connections. The diameter of long pipes is, in some cases,
determined by economic criteria.
Transition pieces at larger diameters must have an extension
angle of around 8°, in order to prevent pressure drops.
The convenience of installing foot valves
when the pump is working in suction or
retention when loaded, along with seal valves, will depend on
the type of installation.
Note
Note
The thermal expansions of the pipes must be compensated
with suitable measures, in order not to exceed the maximum
strains permitted on the pump.
The diameters of the pipes, valves and accessories must be
calculated in line with the load losses envisaged in the
installation, meaning the fluid speeds will be:
- Speed in the discharge pipe: from 2 to 3 m/s
- Speed in the suction pipe: from 1 to 2 m/s
Exceeding the admitted strains of the pipes may lead to leaks
in the pump and to the fluid escaping. Hazard of
death with hot liquids!
The suction and discharge nozzle covers of the
pump must be removed before connecting the pipes.
Before starting up a new installation, it is necessary to
thoroughly clean the tanks, pipes and accessories by brushing
and blowing. Welding material, scales and other impurities are
often cast off some time after. We recommend using an
oversized sieve filter in suction in order to prevent dirt larger
than that permitted by the pump from coming in.
5.3.1 Auxiliary connections
The equipment is normally delivered mounted and ready for
immediate operation, with only the hydraulic and exterior
electrical connections being necessary.
Note When using clean fluids, the cooling of the mechanical seal is
by way of the recirculation of the pumping fluid (it is not
necessary to inject exterior fluid).
Auxiliary pipes are designed exclusively to
support internal stresses due to the pressure
of the circulating fluid, to which end it is forbidden to subject
them to additional exterior stresses (e.g. for support, etc.)
Note
5.4 Electrical connection:
The electrical connection must be carried out by a
specialist electrician. Applicable regulations must be
complied with.
Check the mains voltage available against the factory plate
data and choose the appropriate connection.
The technical connection conditions and the conditions
of the local energy supply company must be observed
when carrying out the connections.
We strongly recommend the use of a safety circuit
breaker for the motor and a thermistor associated to a
trigger device.
These instructions apply to asynchronous three-phase
standard electric motors with a squirrel cage both in
horizontal and vertical execution, in IP-23, IP-54 and IP-55
protection grades, with frame sizes of between 56L and
355S, both inclusive, with voltages of 200 to 500 V
between phases.