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5.3 Scope of delivery
Sewage lifting unit, including:
Switchgear (1~ 230 V/3~ 400 V),
1 Inlet seal DN 100 (for pipe ∅ 110 mm)
1 Keyhole saw ∅ 124 for inlet, DN 100
1 Hose section PVC ∅ 50 mm with hose clips for connecting the suction line to the dia-
phragm hand pump or a DN 50 inlet
1 Collar for ventilation connection, DN 70
1 Set of fixation material (mounting bracket with sound absorption strips, hexagon head
bolt and plastic dowel ∅10 mm)
6(8) Sound absorption strips for insulation of structure-borne noise
1 DN 80/100 flange piece with flat gasket, flexible hose section, hose clips, screws and
nuts for connecting the pressure pipeline, DN 100
1 Installation and operating instructions
5.4 Accessories
Accessories must be ordered separately.
The following accessories are available:
• Flange piece DN 80, DN 80/100 (1x DN 80/100 already included in the scope of delivery),
DN 100, for connecting the slide valve on the inlet or pressure side to the pipe
• Inlet seal for additional inlet, DN 100 (one is already included in the scope of delivery)
• Inlet seal set for inlet DN 150 (keyhole saw, inlet seal)
• Gate valve DN 80 made of cast for discharge pipe
• Gate valve DN 100, DN 150 made of plastic for inlet pipe
• Diaphragm hand pump (R 1½) (without hose)
• 3-way cock for switching over to the manual suctioning from the pump sump/tank
• Alarm switchgear
• Rechargeable battery (NiMH) 9 V/200 mAh
• Horn 230 V/50 Hz
• Flashing light 230 V/50 Hz
• Signal lamp 230 V/50 Hz
6 Description and function
6.1 Description of the unit
The sewage lifting unit Liftson L (Fig. 1) is a fully submersible sewage lifting unit ready for
connection (flooding height: 2 mWS, flooding time: 7 days) with a collection tank that is
impermeable to gas and water and that is equipped with a buoyancy safeguard.
It is equipped with three-phase current pumps (3~400 V) and clogging-free vortex impel-
lers. A switchgear with main switch, built-in motor protection, optical rotation direction
monitoring, on/off switch and automatic/manual/acknowledgement switch provides
automatic operation.
Due to the special tank geometry, settling sediments are also fed to the pump so that
deposits in the tank are prevented.
Inlets can be connected on three sides and on the top of the container in various nominal
diameters. Connecting pieces on the top of the container allow the connection of tubes in
DN 50 and DN 70 for more inlets and bleeding (see section "Connecting the pipes"). An
inspection opening makes easy maintenance of the system possible.
On the sides of the collection reservoirs fastening straps (simultaneously transport carry-
ing handles) are provided, to which the system can be anchored to the floor by means of
the included fastening elements so that they are anti-buoyant and cannot twist. The
included sound absorption strips to be attached to the bottom of the tank prevent struc-
ture-borne noise transmission.
The double-pump system is equipped with a base-load pump and a peak-load pump.
Salmson 04/2011
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