ENGLISH
7
CONTENTS
1. PUMPED FLUIDS
These pumps cannot be used in swimming pools, ponds or tanks in which people or present, or for pumping hydrocarbons
(petrol, diesel fuel, fuel oils, solvents, etc.) in accordance with the accident-prevention regulations in force.
N.B.: The liquid inside the pump, to lubricate the seal device, is not toxic but it may alter the characteristics of the water (if it is pure water) if
there is a leak in the seal device.
2. TECHNICAL DATA AND LIMITS ON USE
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Supply voltage:
1 X 220/240V 50Hz
3 X 400V 50Hz
3 X 230V 50Hz
1 X 220/230V 60Hz
3 X 230V 60Hz
3 X 380/400V 60Hz
see electric data plate
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Flow rate:
see electric data plate
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Hmax ( m ) - Head:
pag. 59
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Degree of motor protection / Protection class:
see electric data plate
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Absorbed power:
see electric data plate
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Liquid temperature range:
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from 0°C to +35°C for domestic use (safety standards EN 60335-2-41)
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from 0°C to +50°C for other uses
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Maximum immersion:
10 metres
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Storage temperature:
-10°C +40°C
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Noise level:
Falls within the limits envisaged by EC Directive 89/392/EEC and subsequent modifications.
3. WARNINGS
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The pump is provided with a carrying handle which may also be used to lower it into wells or deep holes with a rope or cable.
–
If the power cable is damaged in any way it must be replaced and not repaired (use cable type H07RN-F diam. 9 – 9.5 mm. with minimum
length 10 metres for the portable version, with a UNEL 47166-68 plug for the SINGLE-PHASE version and with an EEC plug for the THREE-
PHASE version).This must be done by skilled personnel, in possession of the qualifications required by the regulations in force.
–
The pump must never be allowed to run dry.
4. INSTALLAZIONE
4.1 If the bottom of the well or borehole in which the pump is to operate is particularly dirty, it is advisable to provide a support for the pump to
sit on so as to avoid clogging of the intake grid (Fig.1).
4.2 Before putting the pump in position, ensure that the strainer is not totally or partially blocked by mud, sediment or similar substances.
4.3 It is advisable to use pipes with an internal diameter at least equal to that of the delivery mouth, to avoid falls in pump performance and
the possibility of clogging. In cases where the delivery pipe has long horizontal stretches, it is advisable for this pipe to have a larger
diameter than that of the delivery mouth.
Totally immerse the pump in the water.
4.4 On the version provided with a float switch, ensure that the float can move freely (SEE THE PARAGRAPH ON ADJUSTING THE FLOAT
SWITCH). Ensure that the minimum dimensions of the borehole are as in Fig.1. The dimensions of the borehole must also be calculated
with relation to the quantity of water arriving and to the pump flow rate so as not to subject the motor to excessive starting operations.
4.5 When the pump is to be in a fixed installation, with a float, a check valve must always be fitted in the delivery pipe. This is also advisable
on pumps with manual operation.
4.6 Connect the delivery pipe or hose directly to the pump mouth. If the pump is used in fixed installations it is advisable to connect it to the
pipe with a coupling so as to facilitate disassembly and reinstallation. If a hose is used, fit a threaded hosetail on the pump mouth. Wrap
the thread with suitable material to ensure an effective seal (teflon tape or similar).
For fixed installations we advise the use of the lifting device DSD2 (available on request - Fig.2) to facilitate pump maintenance operations.
When fitted between the pump delivery aperture and the pipe, it avoids having to remove the delivery pipe during maintenance jobs. The
DSD2 device is composed of 8 parts:
