Grundfos LS User Manual

5. Product introduction
5.1 Applications
Grundfos LS horizontal split case pumps are typically
used in these applications:
• circulation in heating and air conditioning systems,
water condensing and boiler feed systems
• liquid transfer and pressure boosting in various
industrial systems
• water distribution and water treatment in public
water systems.
5.2 Pumped liquids
Clean, thin, non-aggressive liquids, not containing
solid particles or fibres. Do not pump liquids that will
attack the pump materials chemically.
CAUTION
Hot Liquid
Minor or moderate personal injury
‐ Do not exceed the maximum operating
temperature stated on the nameplate.
When pumping liquids with a density and/or viscosity
higher than that of water, the head and flow will be
reduced. Alternatively, use motors with
correspondingly higher outputs.
The stuffing box packing rings or mechanical shaft
seal O-rings chosen must be suitable for the liquid to
be pumped.
Special stuffing box packing rings or shaft seal O-
rings may be required if you use the pump for
pumping treated water:
• at temperatures above 80 °C (176 °F).
• containing additives to prevent system corrosion,
calcareous deposits, etc. (this may be the case in
heating and ventilating systems).
When pumping liquids other than water, select an
appropriate stuffing box or shaft seal. For further
information, contact Grundfos.
5.3
Identification
The type designation and rating information of
Grundfos horizontal split case pumps are stated on
the nameplate. The type designation includes model
number, size and type.
Permanent records for this pump are kept under its
serial number production date, and this number must
therefore be stated in all correspondence and spare
parts orders.
For more information about weight, see the label on
the packaging.
5.3.1 Nameplate
1
2
7
53
6
8
9
10
4
xxx
TM086713
Nameplate of LS pump
Pos. Description
1 Type
2 Model
3 Pressure rating and maximum temperature
4 Country of production
5
Hydraulic pump efficiency at optimum
efficiency point
6 Impeller diameter
7 Speed of rotation [r/min]
8 Pump head at rated flow rate [m]
9
Rated flow rate [m
3
/h]
10 Drinking water approval
30
English (GB)

Grundfos LS Specifications

General

Type	Submersible Pump
Protection class	IP68
Frequency	50 Hz
Application	Drainage
Liquid Temperature	0 °C to 40 °C
Seal Type	Mechanical seal