Long-Term Storage; Product Description; Pump Design; Pump Description - Lowara ESH Serie Manual De Instalación, Funcionamiento Y Mantenimiento

2.3.1 Long-term storage

If the unit is stored for more than 6 months, these re-
quirements apply:
• Store in a covered and dry location.
• Store the unit free from heat, dirt, and vibrations.
• Rotate the shaft by hand several times at least
every three months.
Refer to the drive unit and coupling manufacturers
for their long-term storage procedures.
For questions about possible long-term storage
treatment services, please contact your local sales
and service representative.
Ambient temperature
The product must be stored at an ambient tempera-
ture from -5°C to +40°C (23°F to 104°F).

3 Product Description

3.1 Pump design

The pump is a horizontal pump with volute casing
close-coupled to standard electric motors.
The pump can be used for handling:
• Cold or warm water
• Clean liquids
• Liquids which are not chemically and mechani-
cally aggressive to the pump materials.
• Liquids which are moderately aggressive to the
pump materials.
The product can be supplied as a pump unit (pump
and electric motor) or only as a pump.
NOTICE:
If you have purchased a pump without motor, make
sure that the motor is suitable for coupling to the
pump.
Intended use
The pump is suitable for:
• Water supply and water treatment
• Cooling and hot water supply in industries and
building services
• Irrigation and sprinkler systems
• Heating systems
• Fire-fighting applications
Additional uses for optional material:
• District heating
• General industry
Improper use
WARNING:
Improper use of the pump may create
dangerous conditions and cause person-
al injury and damage to property.
An improper use of the product leads to the loss of
the warranty.
Examples of improper use:
• Liquids not compatible with the pump construc-
tion materials
• Hazardous liquids (such as toxic, explosive, flam-
mable, or corrosive liquids)
• Potable liquids other than water (for example,
wine or milk)
Examples of improper installation:
• Hazardous locations (such as explosive, or cor-
rosive atmospheres).
• Location where the air temperature is very high
or there is poor ventilation.
• Outdoor installations where there is no protection
against rain or freezing temperatures.
DANGER:
Do not use this pump to handle flamma-
ble and/or explosive liquids.
NOTICE:
• Do not use this pump to handle liquids containing
abrasive, solid, or fibrous substances.
• Do not use the pump for flow rates beyond the
specified flow rates on the data plate.
Special applications
Contact the local sales and service representative in
the following cases:
• If the density and/or viscosity value of the pump-
ed liquid exceeds the value of water, such as wa-
ter with glycol; as it may require a more powerful
motor.
• If the pumped liquid is chemically treated (for ex-
ample 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 on page 354 for an explanation of the
denomination code for the pump and one example.
3.3 Nameplate
The nameplate is located on the bearing bracket.
The name plate 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
3 on page 366.
IMQ or other marks (for electric pump only)
Unless otherwise specified, for products with a mark
of electrical-related safety approval, the approval re-
fers exclusively to the electrical pump.

3.4 Pump description

• Connection dimensions according EN 733 (mod-
els 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 code Material cas-
ing / impeller
SS Stainless steel /
Stainless steel
SN Stainless steel /
Stainless steel
en - Original instructions
on page 348.
Figure
Standard/
Optional
Standard
Standard
17