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Four-stroke combustion engine
Engine power
Cubic capacity
Fuel type
Tank capacity
No-load speed
Cooling
Starter
5.3
Scope of delivery
5.3.1 Stationary version
• Pump with standard electric motor without cable
or with combustion engine
• Pump installation and operating instructions
• For combustion engine, operating instructions for
the engine
5.3.2 Transportable version
• Pump with standard electric motor without cable
or with combustion engine with trolley
• Pump installation and operating instructions
• For combustion engine, operating instructions for
the engine
5.4 Recommended accessories
Accessories must be ordered separately:
• Hose coupling
• Suction hose with filter
• Motor protection switch
• Stop valves
• Non-return valve
6 Description and function
The pumps of the Wilo-Drain LPC series are self-
priming centrifugal pumps with open multi-
vane impeller. Drive shaft and suction port are
horizontal, the discharge port is arranged verti-
cally.
Description of the pump (fig. 1):
1 Pump housing
2 Suction port
3 Discharge port
4 Feed/breather hole
5 Connection box for cables (only for electric
motor, not LPC...P)
6 Motor
7 Mounting links
8 Access opening (LPC 40 with drain plug)
9 Data plate
Other features:
• Built-in non-return valve (only LPC 40)
• Mechanical seal and static seal for sealing the
shaft passage
• Access opening for cleaning the pump
(not LPC 40)
10
LPC 40
2,21 kW / 3 PS
3
127 cm
See the operating instructions for the combustion engine
2,8 l
3600 1/rpm
Air cooling
Manual, pull starter
7 Installation and electrical connection
7.1 Installation
7.1.1 Observe the following prior to installation
LPC 50
3,68 kW / 5 PS
3
205 cm
DANGER! Danger to life!
Improper installation and incorrect electrical
connections can result in fatal injury.
• The installation and electrical connections
should only be made by properly skilled staff
and in compliance with applicable regulations!
• Follow all accident prevention regulations!
NOTE Use original accessories from Wilo, see cat-
alogue, for the optimum operation of the pump.
CAUTION! Danger of material damage!
Frost can freeze the pumping fluid and destroy
the pump.
• Make sure that the installation site is frost-free.
Solid particles that are too large can destroy the
pump.
• Use the appropriate inlet filter in the suction line
to make sure that the maximum permissible
grain size is not exceeded.
If set up incorrectly, this can damage the pump.
• Make sure that mobile pumps are set up
securely.
• For a fixed installation, screw the base plate to
the foundation.
Installation example (fig. 3)
Fig. 3 shows an example of a fixed installation with
accessories:
1 Pump
2 Suction line (accessory)
3 Pressure line (accessory)
4 Intake strainer (accessory)
• Lay the suction line with a gradient of at least 2%
(fig. 3) in upward direction towards the pump so
that no air bubbles can get trapped in the intake
line.
• The suction line should be a rigid line.
• The suction line should be as short as possible.
Avoid pressure losses if possible, e.g. due to elbow
pipes, constrictions or valves.
• The diameter of the suction line should at least be
equivalent to the pump's nominal width so as not
to affect the suction capacity and pump perform-
ance.
• The diameter of the pressure line must at least be
equivalent to the pump's nominal width.
• With mobile pumps, the pressure line may be
either rigid or flexible.
• Hold sealing material ready (e.g. with teflon tape).
WILO AG 08/2007
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