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2. USE AND MAINTENANCE
2.1
GENERAL INFORMATION
DAB PUMPS systems are manufactured in polyethylene by rotational moulding and comply with the domestic and European standards with
regard to the CE marking of products relevant to the specific operating modes.
RULES FOR EFFECTIVE SYSTEM OPERATION
- Selection of correct size
- Installation in accordance with good practice
- Regular scheduled maintenance
ARE THE BASIS FOR
- Minimising environmental pollutant emissions
- Reducing unplanned maintenance frequencies
- Increasing the system's working lifetime
- Complying with regulatory and authorisation requirements
In this manual, DAB PUMPS provides the basic instructions for correct management and installation of the system.
This operator's manual is for use with the following types of systems:
UNIT AND SYSTEM TYPES
FEKAFOS MAXI 1100-2780
USES
CLEAR WATER LIFTING
WASTEWATER LIFTING
UNSTRAINED SEWAGE LIFTING
2.2
FUNCTION AND USE
Water lifting systems are used for pumping water to a site at a higher level.
Often, the need to construct basements both in residential buildings and in public construction projects (car parks etc.), and underground
infrastructures, leads to the requirement for automatic systems for transferring rainwater or wastewater to drainage systems or watercourses
which flow at a level above that of the basement floors.
The tank is suitable to satisfy the standards 752:2008 and 12056-4 if complete with adequate accessories (pumps and valves).
CLEAR WATER LIFTING SYSTEMS
They are generally used for lifting or draining rainwater or wastewater, for liquids which do not contain solids. However, when run-off rain
water is to be lifted the units installed are generally suitable for pumping water containing small solids.
WASTEWATER LIFTING SYSTEMS
This the most widely used type of system, especially in non-industrial applications. Systems of this kind are able to transfer liquids which
may contain a certain amount of small solid bodies.
Depending on the size of the solids in the liquid to be lifted, which must however be small, at least a preliminary coarse strainer or a settling
tank must be installed upstream of the system.
Pumps with set-back impeller (never in contact with the liquid) or with channel impeller with large free passage are normally used for these
systems.
UNSTRAINED SEWAGE LIFTING SYSTEMS
They are used for transferring water that contains solids. Mainly, they are installed when pressurised sewer systems have to be constructed
with small diameter pipelines with irregular altimetric profile, and a particularly high gradient has to be overcome.
These systems incorporate pumps with knife grinder systems, which chop up the solids and are therefore always in contact with the liquid
to be lifted. In constant duty conditions, wear of the grinder knives means that constant, continual maintenance is required to maintain rated
performance levels.
ENGLISH
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