Pump Description - Xylem LOWARA ESH ATEX Manuel D'installation, D'utilisation Et Entretien

NOTE:
•
Do not pump liquids containing
abrasive, solid, or fibrous
substances.
•
Do not use the pump for flow
rates beyond the specified flow
rates on the data plate.
•
Make sure that the liquid inside
the pump does not freeze or
crystallise.
•
The pumped liquid must be
chemically and mechanically
non aggressive.
•
The auto-ignition temperature
of the pumped liquid must be ≥
50°C (122°F) at the maximum
surface temperature T4.
•
In case of variable speed drive
(VSD) application, contact
Xylem or the Authorised
Distributor.
•
If you have purchased a pump
without a motor, make sure that
the motor is suitable for
coupling to the pump.
•
The motor shall be a B3
mounting arrangement type.
•
In case of variable speed drive
(VSD) application, contact Xylem
or the Authorised Distributor.
Special applications
Contact Xylem or the Authorised Distributor in
the following cases:
•
If the density and/or viscosity value of the
pumped liquid exceeds the value of water,
such as water with glycol; as it may
require a more powerful motor.
•
If the pumped liquid is chemically treated
(for example softened, deionized,
demineralized etc.).
•
Any situation that is different from the
ones that is described and relate to the
nature of the liquid.
3.2 Pump denomination
See Figure 2 for an explanation and location of
the ATEX adhesive label.
3.3 Data plate
The nameplate is located on the bearing bracket.
The nameplate lists key product specifications.
For more information, see Figure 1.
The nameplate provides information regarding
the impeller and casing material, the
mechanical seal and their materials. For more
information, see Figure 5.

3.4 Pump description

•
Connection dimensions according EN 733
(models 32-125...-200; 40-125...-250; 50-
125...-250; 65-160...-250; 80-160...-250).
•
Volute casing pump with back pull out
bearing bracket.
3.5 Material
The metallic parts of the pump that come in
contact with liquid are made of the following:
Material
Casing/impeller
code material
Stainless steel /
SS
stainless steel
Stainless steel /
SN
stainless steel
3.6 Mechanical seal
Unbalanced single mechanical seal acc. EN
12756, version K, with anti-rotation stop pin.
3.7 Application limits
Maximum working pressure
Figure 6 shows the maximum working pressure
depending on the pump model and the
temperature of the pumped liquid.
P1max + Pmax≤ PN
P1max Maximum inlet pressure
Pmax Maximum pressure generated by the
pump
PN Maximum operating pressure
Liquid temperature intervals
For the working temperature ranges and the
data plate, see Figure 6.
NOTICE:
For T4 operation the maximum temperature of
the pumped fluid must not exceed +90°C
(+194°F).
See Installing and Operating Instructions
manual of the motor.
Contact Xylem or the Authorised Distributor for
special applications.
Maximum number of starts per hour
See Installing and Operating Instructions
manual of the motor.
Noise level
For the sound pressure levels of pump
equipped with standard supplied motor, see
Installing and Operating Instructions manual of
the motor.
For sound pressure levels of pump without
motor, see Table 11.
4 Installation
Precautions
WARNING:
• Observe the accident prevention
regulations in force.
• Use suitable equipment and
protective material.
en - Original instructions
Standard/
optional
Standard
Standa
rd
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