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15.3 DRY INSTALLATION
Electric pumps with cooling jackets can be used in dry installations with both openings (suction/delivery)
flanged to the pipe. This type of installation allows the unit to be mounted in a dry place even without
ventilation. In such cases, it is advisable to mount a sluice valve in both the supply and delivery pipes in
order to work on the electric pump without fluid escaping. There are two main installations:
1 - Electric pump with vertical rotor axis, on a support foot with flanged elbow on the suction side (fig. 4).
To move the machine, remove the handle and then fit it in the other position. This will ensure that the axis
of the machine remains vertical when it is lifted.
2 - Electric pump with horizontal rotor axis on special supports and delivery pointing upwards (fig. 5).Set the
pump in a vertical position. Remove the handle and fit it in the other position.Lift the pump and mount the
bracket on the side with the hydraulics using the 3 supplied screws.Lower the pump to the ground. Remove
the handle.Mount the bracket on the side with the motor with the same bolts used to fix the handle.Screw
the supplied bolt into one of the 2 vacant holes of the bracket on the side with the motor: first fix it in one
hole and then attempt to lift the machine, checking to see which of the two holes it is better to use in order
to lay down the electric pump. Use the other hole if necessary. Keep the pump in the center of gravity by
means of the hoist.Use a vacant hole of the bracket on the side with the motor and the supplied eyebolt
fixed to the delivery port to handle the electric pump when it is in the horizontal position.Keep at least 1.5
meters away from the machine during operations in which the hoist is used.
In both installations, there must be a space of at least 1,5 m from the side of the motor cover and it must be
possible to align the power supply cables of the electric pump in that direction. This will allow the cooling
jacket to be disassembled for routine maintenance operations or inspection.
When the pump is used in dry installations, it is advisable to include an alarm device to warn of flooding in
the chamber caused by breakage or leaks from the electric pump itself or from one of the wet components
in the system.
If such faults should occur, the machine is not a source of danger and will not be damaged.
The pipes must be supported near the electric pump since this latter must never be used as an
anchoring point.
The forces (F) and moments (M) transmitted by the pipes can act on the suction and discharge
parts at the same time, but must never ever exceed the maximum values given in the following
table. Axes x, y and z represent the directions of stress in relation to the carthesian system applied
to the electric pump flanges.
ø
Fx [N]; Fy [N]; Fz [N]
DN 150
1500
DN 250
2000
DN 300
3000
DN 350
3000
16. TRANSPORT AND STORAGE
The electric pump is very heavy. It must be handled by the indicated points
using suitable and approved tools.
ATTENTION
During transport and storage, the electric pump must always be kept on the bearing
frame or on the pump casing in a vertical position and with the cable wound around
the motor casing. This is the most stable position and protects the cable against
possible contacts or rubbing. Always check that the machine is stable in order to
prevent it from rolling or dropping since this could damage persons, property or the
electric pump itself.If the electric pump is supplied with the cooling jacket, pay
particular care when handling the machine in order to prevent damage to the jacket.
Never lift the electric pump by the powering cables. Use the handle
provided on the cover of the motor casing.
WARNING
When the electric pump has been stored, it must be kept in a dry place at a
temperature of less than 60°C prior to being used for the first time.
WARNING
When the electric pump is stored after a period of use, it must be thoroughly cleaned
with water and disinfected if necessary, dried and kept in a dry place at a temperature
of less than 60°C.
Before using the electric pump again, make sure that the rotor is free to turn before
making the electrical connections, that the motor's electrical insulation is undamaged
and that the oil is at the right level.
If the electric pump is stored for a long period of time, turn the rotor every so often to
prevent its seals and shims from jamming (channel impellers).
If the pump is blocked by ice, immerse it in water until it has completely thawed. Do
not opt for other, faster methods as the machine could be damaged. Make sure that
the pump is in a perfect condition and conduct the inspections described above
before use.
Caprari S.p.A.
ΣF [N]
Mx [Nm]; My [Nm]; Mz [Nm]
2500
750
3500
1000
5250
2000
5250
2000
K.M150R.. / K.250... / K.D300... / K.D350...
1,5m min
Fig. 4
Fig. 5
ΣM [Nm]
1250
1750
3500
3500
Fig. 6
GB
1,5m min
SENSO DI
ROTAZIONE
REACTION
DIRECTION
)
(kickback
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