caprari K+ Serie Betriebs- Und Wartungsanleitung Seite 21

9. FIELDS OF USE
These electric pumps have been designed to convey clean and dirty water, sewage containing solids and with fiber, sludge and organic material.
Electric pumps with single/multiple channels impellers (M/D) are more suitable in the presence of short-fiber solids, the vortex impeller (V, W) is
more suitable for long-fiber solids and in the presence of liquids containing gas, raw or fermented sludge, the hydraulics with suction shredder (T) is
suitable when small diameters of the delivery pipeline require shredding of the solid part of the pumped liquid to avoid clogging. Typical fields of use
are: drainage, depuration, reclaiming and general transfer of liquid.
10. INADVISABLE USES
The standard versions of these electric pumps are unsuitable for operation with fluids for edible use. Contact Caprari S.p.A before using the pumps
in these sectors. Standard electric pumps cannot be used to pump inflammable or explosive liquids and cannot be installed in areas where there is a
classified risk of explosion. Use of the flameproof pump version should be considered in these cases.
These electric pumps cannot be used in tanks or places where they could come into contact with parts of the human body.
11. TECHNICAL AND OPERATIONAL CHARACTERISTICS
Three/phase, asynchronous motor with squirrel cage rotor, Class F insulation (155°C / 310° F max.) for K..N1/X1 and Class H (180°C/355 F
max) for K..N3, submersible with protection class IP68 according to the IEC 529 or IP58 standards and the EN 60034-5 standard, continuous or
intermittent operation.
The absorbed current reported on the identification plate may be slightly higher than the one reported in the Caprari technical documents; indeed, it
factors in data dispersion due to the electric pump being manufactured in series.
The tolerance values established by standard IEC 34.1 (CEI - EN 60034-1) are valid for all the electric pumps. The hydraulic performances are
established by ISO 9906 cl.II standards. The electrical components of K...N3 models (of these motors) comply with IE3 energy efficiency class,
when used in surface motors, as described by EU Regulation 640/2009 and by Standards IEC 60034-30 and IEC 60034-2-1.
The data measured may also differ owing to inaccuracies in the measuring instruments used for checking and/or to electricity mains with
characteristics (voltage/frequency/unbalances) differing from those indicated.
Maximum number of starts per hour: 20 up to 5kW, 15 up to 10kW, 10 for higher power ratings.
A ± 10% variation to the mains voltage is tolerated for motors with data plate voltage values of 230/400V or 400/700V since they can also be used at
voltage values of 220 and 240, 380 and 415V ± 5%
The power draw indicated on the data plate is slightly higher than the value given in the technical documentation supplied by Caprari as it also
accounts for the differences created by mass production of the electric pump.
The tolerance values established by standard IEC 34.1 (CEI - EN 60034-1) are valid for all the electric pumps. The hydraulic performances are
established by ISO 9906 cl.II standards.
The data measured may also differ owing to inaccuracies in the measuring instruments used for checking and/or to electricity mains with
characteristics (voltage/frequency/unbalances) differing from those indicated.
Maximum permissible power draw unbalance: 5%
Max. immersion depth: 20 m
Maximum operating pressure: 80 m.c.
Temperature of pumped liquid: 0°C ÷ 40°C
pH of raised liquid: 6 ÷ 10
For versions M,D,V and W, the pumped liquid may contain solids in suspension. The size of these must not exceed the through section of the wet part.
Contact our technical department if the density of the liquid exceeds 1 Kg/dm
When the electric pump is installed in compliance with the instructions in this manual and according to the given diagrams, the level of acoustic
pressure issued by the machine within the forecast operative range will in no case reach 70 dB(A). The noise level was measured according to ISO
3746 specifications, 2006/42/EC directive, and the measuring points were 1,6 m above the access platform.
12. FORBIDDEN USES
To ensure correct and completely safe operation, never exceed the characteristics listed in paragraph 11 or the maximum performance characteristics
given on the electric pump data plate.
13. SAFETY REGULATIONS
Only specialized technicians equipped with adequate tools and fully familiar with the instructions in this manual may be allowed to work on the electric
pump. Always comply with the rules of hygiene, accident prevention and safety provisions when installing a new pump or during maintenance operations,
and comply with the local provisions and regulations in order to prevent accidents. The purchaser shall be responsible for compliance with these safety
provisions and instructions.
More specifically, the following recommendations must be complied with scrupulously:
1. - System inspection:
1.1. - Given the varied nature of the processed fluids, suitable clothes and shoes must be worn and suitable protection devices used, in order to
avoid any contact between the skin and contaminated fluids or equipment.
1.2. - The technicians working with the pumps must be vaccinated against the possible illnesses that could be caught following injury, contact or inhalation.
1.3. - Before proceeding with any work on the pumping station, check that all electrical cables entering the tank are disconnected from their relative
power supplies.
1.4. - If it is necessary to work in the tank, provide for adequate ventilation in order to ensure that there is sufficient oxygen and no toxic and/or explosive
gas. In all cases, check:
- that the descending and ascending means are efficient;
- that anyone lowered into the tank is equipped with safety harness;
- that there is always a worker outside the tank (never ever work alone even in optimum conditions) able to immediately act on the harness lifting ropes;
- that the area is adequately restricted by barriers and signs;
- that there is no risk of explosion from using electrical equipment or carrying out operations that involve flames or sparks.
1.5. - To remove the electric pump from its housing, first disconnect the electric cables from the control panel and operate the lift as indicated on 15.1
(Fig. 2). Use a jet of clean water outside and inside the electric pump in order to wash off all residuals of the pumped fluid. Always wear accident-
preventing goggles, rubber gauntlets, mask and a waterproof apron when carrying out these operations.
2. - Inspections of the equipment from a pumping station:
- the electric pump or any accessory from a trap must be thoroughly cleaned in all parts using water or specific products before being subjected to
any operation;
- if the electric pump is dismantled, always wear work gloves when handling the parts;
- check the insulation degree of the electric motor and the efficiency of the grounding system before subjecting it to any live tests.
3. Inspection of the electric pump:
- the temperature of the external surface of the motor can exceed 80°C. Take the necessary precautions to avoid burns.
Caprari S.p.A.
K.M080.. / K.M100H.. / K.M150L.. / K.W080.. / K.W100L.. / K.T040H.. / K.D200N..+0075..
and/or the viscosity exceeds 1 mm
3
/s (1 cSt).
2
GB
21