Applications; Pumped Fluids; Technical Data And Range Of Use; Management - DAB KDN 32-125.1 Instrucciones Para La Instalación Y El Mantenimiento

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2.

APPLICATIONS

Single-stage standardized centrifugal pumps with a spiral body, dimensions in accordance with DIN 24255 - EN 733 and flanged DIN 2533
(DIN 2532 per DN 200). Designed and built with advanced characteristics, they are outstanding for their particular performances which ensure
maximum yield while guaranteeing absolute reliability and sturdy construction. They cover a wide range of applications, such as water supply,
circulation of hot and cold water in heating, air-conditioning and refrigerating systems, transfer of liquids in agriculture, market gardening and industry.
Also suitable for use in fire-fighting sets.
3.

PUMPED FLUIDS

The machine has been designed and built for pumping clean, pure and aggressive fluids, on condition that in
the latter case the compatibility of the pump construction materials is checked and that the motor used has
sufficient power for the specific gravity and the viscosity of the fluid.
4.

TECHNICAL DATA AND RANGE OF USE

Pump
Liquid temperature range:
Rotation speed:
Flow rate:
Head up – Hmax (m):
Maximum environment temperature:
Storage temperature:
Relative humidity of the air:
Maximum working pressure (including any pressure at intake):
Weight:
Dimensions:
Motor
Supply voltage:
Degree of motor protection :
Thermal class :
Absorbed power :
Motor construction :
Class AM line fuses: see table 4.1. page 118
If a fuse trips which protects a three-phase motor, it is recommended to change the other two fuses as well, not
only the one that is burnt-out.
5.

MANAGEMENT

5.1.

Storage

All the pumps/electropumps must be stored indoors, in a dry, vibration-free and dust-free environment, possibly with constant air humidity.
They are supplied in their original packaging and must remain there until the time of installation, with the intake and delivery mouths closed
with the special adhesive disc supplied. In the case of long storage, or if the pump is stored after a certain period of operation, only the parts
made of low-percentage alloy materials, such as cast iron GG-25, GGG-40 which have been wet with the pumped fluid, should be kept in the
special preserving mediums available on the market.
5.2.

Transport

Avoid subjecting the products to needless jolts or collisions.
To lift and transport the unit, use lifting equipment and the pallet supplied standard (if applicable).
Use suitable hemp or synthetic ropes only if the part can be easily slung, as indicated in fig.5.2. (A o B). If an eyebolt is provided on the motor,
it must not be used for lifting the whole assembly.
(A) - Transporting the pump
5.3.

Dimensions and weights

The adhesive label on the package indicates the total weight of the electropump. The dimensions are given on page 123-124.
6.

WARNINGS

6.1.
Checking pump/motor shaft rotation
Before installing the pump, it is advisable to check that the pump and/or motor shaft turns freely. To do this, in the case of pumps supplied
with a bare axis, check by turning the end of the pump shaft by hand. In the case of the electropump assembly on a base, remove the coupling
cover and check by turning the coupling by hand. When you have finished checking, return the coupling cover to its original position.
Do not force the shaft or the fan of the motor (if supplied) with pliers or other tools to try to free the pump, but look
for the cause of the blockage.
6.2.

New systems

Before running new systems the valves, pipes, tanks and couplings must be cleaned accurately. Often welding waste, flakes of oxide or other
impurities fall off after only a certain period of time. To prevent them from getting into the pump they must be caught by suitable filters. The
free surface of the filter must have a section at least 3 times larger than the section of the pipe on which the filter is fitted, so as not to create
excessive load losses. We recommend the use of TRUNCATED CONICAL filters made of corrosion-resistant materials (SEE DIN 4181):
ENGLISH
from -10°C to +140°C
1450-2900 1/min
from 1 m³/h to 2000 m³/h depending on the model
pag. 128
+40°C
-10°C +40°C
max 95%
16 Bar - 1600 kPa (for DN 200 max 10 Bar-1000 kPa)
See plate on package
see table on pag. 123-124
see electric data plate
IP55
F
see electric data plate
in conformity with Standards CEI 2 - 3
(B) - Transporting the whole assembly
(fig.5.2.)
19

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