Fields Of Use; Inadvisable Uses; Technical And Operative Features; Unacceptable Uses - caprari K+ Serie Instrucciones De Servicio

K..065F.. / K.T040F..
8.

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-channel impellers (M) are more suitable for work with fluids containing short-fiber solids while the vortex impeller (V) is more
suitable for work with long-fiber solids or fluids containing gas, crude or fermented sludge. Hydraulics with shredder on the intake (T) are suitable when
the delivery pipes are small in diameter and the solid part of the pumped fluid must be shredded to prevent clogging.
Typical fields of use are: drainage, depuration, reclaiming and general transfer of liquid.
GB
9.

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.
10. TECHNICAL AND OPERATIONAL CHARACTERISTICS
Three-phase, asynchronous motor with squirrel cage rotor, Class H insulation (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. Continuous or intermittent service.
Data pertaining to intermittent service S3 is given for this series of submersible motors. If the motor may become uncovered during operation, users
must ensure the degree of intermittence given in the data plate.
S3 service stands for intermittent service consisting of 10 minute equal cycles of which the previous table indicates the minutes (multiplied by 10) of
the cycle during which the motor may operate (eg.: S3 = 25%: operation consists of a repetitive sequence of 2½ minutes operation and 7½ minutes
at a standstill). See standard IEC 34-1/CEI 2.3).
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.
For all electrical data, the tolerances of IEC 34.1 (CEI - EN 60034-1) shall apply; for hydraulic performance ISO 9906 shall apply. 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.
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%.
Maximum permissible power draw unbalance: 5%
Max. immersion depth: 20 m
Temperature of pumped liquid: 0°C ÷ 40°C
pH of raised liquid: 6÷10
For versions M, V and W, the pumped fluid can contain solids in suspension. The size of these must not exceed the through section of the pump.
Contact our technical department if the density of the liquid exceeds 1 Kg/dm3 and/or the viscosity exceeds 1 mm2/s (1 cSt).
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. 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.
11. FORBIDDEN USES
To ensure correct and completely safe operation, never exceed the characteristics listed in paragraph 10 or the maximum performance characteristics
given on the electric pump data plate.
12.

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.
It is particularly necessary to comply with the following recommendations:
1. - Inspections of the systems:
1.1. - In view of the varying nature of the conveyed fluids, always wear appropriate clothing and footwear in order to prevent the skin fron touching
contaminated equipment or liquids.
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 page
22 (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.
20 Caprari S.p.A.