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English
English
- Pumped liquid has a permitted maximum density of 1050kg/
m
3
and a maximum viscosity of approx.1x106 m2/s.
- Pumped liquid’s PH value is 6-9;
- Maximum liquid temperature is 40 ℃ .
- Maximum diameter of solid particles contained in the
pumped liquid must be less than the maximum diameter
that can flow through the pump. (Maximum diameter can
be found in the catalogue).When there are flexible fibers
contained in the pumped liquid, the maximum length
of them is 25-400mm (depending on the model of the
machine), Trash rack is also required to Filter out larger solid.
Special models are also available for use with abrasive and
corrosive liquids. For information on these models, please
consult the manufacturer. The exact details about your
machine version can be found in the technical data.
Depending on the model, the machine can be
operated in different installation types. Please also
note the appropriate information on operating mode
and minimum water coverage.
Please also note that this machine is not self-
suctioning, which means that the impeller must
always be surrounded by fluid in order to pump.
3.4 Construction
The machine consists of the motor and the pump housing as
well as the impeller which belongs to it. These are assembled
in a modular design..
Motor
The shaft and screw connections are made of stainless steel.
The three-phase asynchronous motor consists of a stator in
the “F” insulation class as well as the motor shaft with rotor
package. Degree of protection is IP68.
The power supply cable is designed for the maximum mechanical
load and is sealed against water pressure from the pumped liquid.
The motor cable lead connections are sealed from the pumped
liquid as well. The bearings used are permanently lubricated
maintenance-free antifriction bearings.
Pump
The pump housing is manufactured from gray cast iron,
and, depending on the model, is supplied with different
connections. This means that the machine can be connected
with the respective pipeline system.
Sealing
The sealing between pump and motor is carried out by two
separate mechanical shaft seals in tandem arrangement. The
sliding and counter-rings of the mechanical shaft seals used
are made from silicon carbide.
Sealing housing
The sealing housing is located between the motor and pump
housing and is made of gray cast iron.
The sealing chamber is filled with transformer oil, this means a
long-lasting lubrication of the sealing is guaranteed.
Impeller
The impeller is enclosed or semi-open type. The impeller is
fastened directly to the motor shaft and driven by it.
Safety and monitoring devices
The motor is equipped with temperature sensors. These are to
protect the motor from overheating.
In addition, the machine is equipped with an electrode for
motor chamber and terminal chamber monitoring and can
additionally be equipped with a sealed chamber electrode
(depending on the model). Depending on the connection, a
warning signal can be displayed and/or the machine switched
off if water enters the motor chamber, terminal chamber or
the sealing housing.
Cooling jacket
Pumps with 30kW and up is equipped with a cooling jacket.
The pressure difference let the pumped liquid run in the
cooling jacket to take heat away.
Pump structure( ≤ 4kW)
1 Suction base
2 Pump casing
3 Impeller
4 Oil filler hole
5 Mechanical seal
6 Outlet hole
7 Sealing housing
8 Lower bearing
9 Stator
10 Rotator
11 Upper bearing
12 Lifting handle
13 Cable
3 － 1 Pump structure( ≤ 4kW)
Pump structure(5.5-22kW)
1 Suction base
2 Pump casing
3 Impeller
4 Oil filler hole
5 Mechanical seal
6 Outlet hole
7 Sealing housing
8 Lower bearing
9 Stator
10 Rotator
11 Upper bearing
12 Lifting handle
13 Control cable
14 Power cable
3 － 2 Pump structure(5.5-22kW)
Pump structure( ≥ 30kW)
1 Suction bell
2 Impeller
3 Pump casing
4 Cooling jacket
5 Mechanical seal
6 terminal box
7 Sealing housing
8 Lower bearing
9 Stator
10 Rotator
11 Upper bearing
12 Lifting handle
13 Control cable
14 Power cable
3 － 3 Pump structure( ≥ 30kW)
3.5 Type designation
The type code provides information about the design of the
machine.
FAG 100 C 25.100/75 Cutter
FA Wilo sewage pump
G For grey water
100 Nominal diameter in DN
C Impeller type (C-Enclosed-channel impeller, Z-Semi-
open impeller, Cutter-With cutting device)
25 Maximum head (m)
100 Maximum flow (m
3
/h)
75 Motor rated power (kW × 10)
3.6 Cooling
The motor is a dry runner. This means that the motor chamber
is filled with air. The heat escapes through the housing parts.
Heat is transferred through them to the pumped fluid and/or
the ambient air. Note the following information:
BEWARE of burns!
The housing components can heat up to well above
40 ° C. There is a risk of burns! After switching it off,
let the pump cool down to ambient temperature.
3.7 Technical data
Technical parameters are listed in the technical documents. All
technical parameters should be strictly observed, especially
the operating current and voltage.
3.8 Special Explanation
Use in siphoning mode is not permitted. According
to the type of installation, the machine must be
submerged in pumped liquid at least up to the top
edge of the pump or motor housing.
4 Transport and storage
4.1 Delivery
On arrival, the delivered items must be inspected for damage and
a check made that all parts are present. If any parts are damaged
or missing, the transport company or the manufacturer must be
informed on the day of delivery. Any claim made at a later date
will be deemed invalid. Damage to parts must be noted on the
delivery or freight documentation.
4.2 Transport
Only the appropriate and approved fastening devices, transportation
means and lifting equipment may be used. These must have
sufficient load bearing capacity to ensure that the product can
be transported safety. If chains are used they must be secured
against slipping.
The staff must be qualified for the tasks and must follow all
applicable national safety regulations during the work.
