Product Introduction; Product Overview; Applications; Pumped Liquids - Grundfos DUOLIFT Series Installation And Operating Instructions Manual

5. Product introduction

5.1 Product overview

Fig. 19 Unolift 270 / Duolift 270
Fig. 20 Duolift 540
Pos. Description
1 Horizontal main inlets, DN 100
2 Mounting brackets
Connection, DN 40, for optional
3
diaphragm pump
4 Pump outlet
Holes for cable glands or pump power
5 cables, alarm float switch and pressure
hose
Outlet for venting pipe ∅ 60
6
7 Vertical main inlet, DN 100
8 Hole for pressure hose

5.2 Applications

The lifting station is designed for pumping grey and
black water from family houses and commercial
buildings where the liquid cannot be led directly to
the sewer due to lack of a natural downward slope.

5.3 Pumped liquids

Unilift CC, Unilift KP, Unilift APB
Grey wastewater: domestic wastewater, excluding
toilet discharge.
SEG pumps
Grey water and black water: domestic wastewater,
including toilet discharge.
The SEG pump has a grinder system.
Surface water must not be discharged into a lifting
station inside the building.

5.4 Automatic operation

The Unolift, Duolift is designed to operate
automatically according to the liquid level inside the
tank.
The system can be set in two ways in order to
operate automatically. It must be either be equipped
with float switches, fitted directly on the pumps, or
with a level sensor tube and a controller.
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