12
ENGLISH
Pumps that are intended for use in or at garden ponds or similar
places must have a mains connecting cable that is not lighter
than rubber sheathed cables reference H07 RN-F (245 IEC 66)
according to EN 60335.
Danger! Mortal danger due to electric shock
The pump many not be used to drain swimming pools /
garden ponds or similar places if anyone is in the water.
WARNING! Hazardous to health!
Owing to the materials used, the pumps are not suitable
for potable water! Unpurified foul and waste water rep-
resents a health hazard.
CAUTION! Danger of property damage!
Pumping unpermitted substances can lead to product
damage.
The pumps are not suitable for water with coarse con-
tamination such as sand, fibres or combustible, caustic
fluids or for use in potentially explosive areas.
Correct use of the pump/unit also includes following these
instructions.
Any use over and beyond these is interpreted as incorrect use.
5. PRODUCT INFORMATION
5.1 Type key
5.3 Scope of delivery
Pump with
•10 metre connecting cable with mains plug
•Connected float switch (design-F)
•Turbulator (Systéme SAN)
•Hose connection (Ø 32 mm / R
1)
•Non-return valve
•Installation and operating instructions
5.4 Accessories
Accessories must be ordered separately (see catalogue):
•Switchgear for 1 or 2 pump operation
•External monitoring devices / tripping unit
•Level control (e.g. flow switch)
•Accessories for transportable wet sump installation (e.g. hose
couplings, hoses, etc.).
•Accessories for stationary wet sump installation (e.g. check
valves, non-return valves, etc.)
6. DESCRIPTION AND FUNCTION
6.1 Description of the product (FIG. 1)
The pump can be completely submerged in the fluid.
The submersible pump housing consists of stainless steel.
The electric motor is protected against the pump chamber by
a rotary shaft seal to seal the motor against the oil chamber
and a mechanical seal to seal the oil chamber against the
fluid. The mechanical seal chamber is filled with medical white
oil so that the mechanical seal is lubricated and cooled during
a dry run. A further rotary shaft seal protects the mechanical
seal facing the fluid.
The motor is cooled by the surrounding fluid.
The pump is installed on the floor of a shaft. For a stationary
installation, it is bolted to a fixed pressure pipe or for a transport-
able installation, it is connected to a hose connection.
The pumps are commissioned by plugging in the protective
contact plug.
They operate automatically, when the float switch switches
the pump on from a certain water level "h" (
FIG. 2
) and
switches it off at a minimum water level ''h1".
Example:
SUBSON Premium 20 MFP
SUBSON
Submersible pump
Premium
Stainless steel
20
Size
M
monophase
F
with float switch
P
« portable » version with 10 metre cable
5.2 Technical data
Mains voltage:
1~230 V,
±
10 %
Mains frequency:
50 Hz
Protection class:
IP 68
Insulation class:
B
Speed:
2900 rpm (50 Hz)
Max. current
consumption:
See name plate
Power consumption P
1
:
See name plate
Max. flow rate:
See name plate
Max. delivery head:
See name plate
Operating mode:
4000 operating hours a year
Operating mode S3
(optimum):
Intermittent duty, 30 %
(3.0 min. operation, 7.0 min.
interval).
Recommended switch-
ing frequency:
20/h
Max. switching fre-
quency:
50/h
Free ball passage:
10 mm
Nominal diameter of
the pressure port:
Ø 32 mm (Rp 1¼)
Admissible fluid
temperature:
briefly 3 min.:
+3 to 35 °C
90°C
Max. submersion depth: 10 m
Flat suction up to:
18 mm
Pos.
Description of the
component
Pos.
Description of the
component
1
Cable and float
switch
16
Rotary shaft seal
2
Clip for float switch
17
O-ring
3
Cap nut
18
Supporting ring
4
Housing
19
Screw
5
Motor cover, top
20
Pump housing
6
Screw
21
Impeller
7
Motor housing
22
Washer
8
Rotary shaft seal
23
Cap nut
9
Circlip
24
Strainer
10
Washer
25
Screw
11
Mechanical seal
26
Hose connector Ø
32 mm / R
1
(not illustrated)
12
Seal
27
Non-return valve
(not illustrated)
13
O-ring
28
Guide plate
14
Seal housing
29
Turbulator
15
Screw
