ENGLISH
11
5. PRODUCT DATA
5.1 Type code
5.2 Technical data
5.3 Scope of supply
• Pump with 10 m connecting cable:
– DM version with free cable end (H07 RN-F 6x1 mm
2
)
– EM version ready-wired (H07 RN-F 4x1.5 mm
2
) with connec-
tor box incl. start-up/operating capacitor
• Installation and Operating Instructions
5.4 Accessories
Accessories must be ordered separately.
• Switchgear for 1 or 2-pump operation
• external monitoring devices / tripping units
• level controller (level sensor / float switch
• Accessories for transportable wet-well installation
• Accessories for stationary wet-well installation
see catalogue for detailed list.
6. DESCRIPTION AND OPERATION
6.1 Pump description
In order to ensure that the pump remains sufficiently cool in
continuous mode, the submersible motor-driven pump must
always be flooded with the flow medium. The pump is driven
by an encased three-phase or single-phase motor which is cor-
rosion-resistant and impermeable to pressurised water.
The pump housing and single-channel impeller are made from
grey cast iron. The flow medium is sucked in on the underside
of the pump through the openings on the cutting device and
is expelled through the discharge side into the pipe.
The cutting device cuts up all dissectible constituents so that
they can be transported through the single-channel impeller
and the DN 40 pressure pipe. The blades, cutters and counter-
cutters are made of hard metal. Constituents which cannot be
cut, such as stones or pieces of metal, damage the cutting
device and should therefore not be allowed into the pump.
The motor chamber is sealed from the pump chamber using a
mechanical seal on the fluid side and a radial shaft seal on the
motor side.
To ensure that the mechanical seal is always lubricated and
cooled, even when running dry, the mechanical seal chamber
is filled with oil (see also 5.2)
CAUTION! Risk of leak!
If the mechanical seal is damaged, small quantities of
oil may leak into the flow medium.
In addition to being connected by a foot bend DN 40, the Mini
SDL pumps can also be connected to the pressure pipe using
an elbow pipe (inner/outer thread):
• Pressure pipe DN 32 (R1 ¼):
Mini SDL 204/1.1 ... 1.5 using an 90° elbow pipe (inner/outer
thread) R1 ¼.
• Pressure pipe DN 40 (R1 ½):
Mini SDL 204/1.1 ... 2.8 using an 90° elbow pipe (inner/outer
thread) R1 ½ and threaded flange with neck as per DIN 2566
with inner thread R1 ½.
The motors are equipped with a winding protection contact
(WSK) that automatically switches off the motor if there is a
threat of it overheating and switches it back on again once it
has cooled down. On 3~motors, the winding protection con-
tact must be connected to the switchgear and analysed
there.
7. INSTALLATION AND ELECTRICAL CONNECTION
Installation and electrical connection should be carried out in
accordance with local regulations and only by qualified per-
sonnel!
WARNING! Risk of personal injury!
The relevant accident precaution regulations must be
observed.
WARNING! Risk of electric shock!
Potential dangers caused by electrical energy must be
excluded.
Local or general regulations [e.g. IEC, VDE, etc.] and
directives from local energy supply companies are to
be followed.
Example :
Mini S DL 2 04/1.5 M
Series
Submersible
« Roue dilacératrice »
Poles
Nominal width discharge side [cm]
Power P
2
[kW]
Single-phase motor (M)
Mains voltage
:1~230 V,
±
10 % (EM=single-phase motor)
3~400 V,
±
10 % (DM=three-phase motor)
Frequency
:50 Hz
Protection
:IP 68
Insulation class
:F
Speed
:Max. 2900 1/min
Power input P
1
(EM/DM) :see rating plate
Motor power rating P
2
(EM/DM)
:see rating plate
Nominal current
:see rating plate
Winding protection con-
tact (break contact)
:U
max
=250 V AC, I
max
= 1 A
Max. contact load
U
max
= 30 V DC, I
max
=30 mA DC
Permissible medium
temp. Min / max
:+3°C to 40°C
Max. flow rate
:see rating plate
Max. delivery head
:see rating plate
Max. immersion depth
:10 m
Operating mode S3
(optimum),
motor immersed
:Intermittent service S3,
25% (2.5 min. mode, 7.5 min. break).
Operating mode S1
(optional),
motor immersed
:Mini SDL
S1: 200 hrs/year
Explosion protection
:EEx d IIB T4
Oil-filled seal chamber :Marcol 82 (medical white oil)
Oil quantity
:Mini SDL
150 ml
