Submittal Sheet

Technical data and performance curves
Unilift CC, KP, AP
3
30
Unilift AP50
Product description
Fig. 23 Unilift AP50
The Unilift AP50 pump is a single-stage submersible
pump designed for pumping effluent and sewage. The
pump is suitable for these applications:
• groundwater lowering
• pumping in drainage collecting tanks
• pumping in surface water collecting tanks with
inflow from roof gutters, shafts, tunnels, etc.
• emptying of ponds, tanks, etc.
• pumping of fibre-containing wastewater from
laundries and industries
• pumping of domestic wastewater from septic tanks
and sludge treating systems
• pumping of domestic wastewater with/without
discharge from water closets.
Maximum particle size: 2.0".
Liquid temperature range: 32 °F to 131 °F.
Approvals
Operation
The pump can be used for automatic as well as
manual operation and can be installed in a permanent
installation or used as a portable pump.
To enable automatic operation the pump can be fiites
with a float switch or it can be connected to an
separate level switch and control box for automatic on/
off operation.
Pump sleeve and housing
The stainless steel pump sleeve is made in one piece
and equipped with an insulated carrying handle.
The suction strainer is clipped on to the pump housing
and can easily be removed for maintenance. The
strainer prevents the passage of large solids and
ensures a slow flow into the pump.
The stainless steel pump housing is fitted with an
internal riser pipe ensuring high efficiency. The riser
pipe has a number of holes enabling efficient cooling
of the motor during operation. The cable entry is of the
socket and plug connection type, allowing for quick
and easy dismantling.
Discharge port
All Unilift AP50 pumps have a threaded 2" NPT vertical
discharge port.
Shaft and bearings
The stainless steel shaft rotates in maintenance-free
prelubricated ball bearings.
Impeller
The stainless steel impeller is a vortex impeller with
L-shaped blades and a clearance of 2.0" in the pump
housing. The blades are curved backwards to reduce
any harmful effect from solid particles and to minimise
power consumption. The impeller has a protective cap
to prevent the deposit of long-fibred material.
Fig. 24 Impeller, Unilift AP50
Shaft seal
The shaft seal is a combination of a mechanical,
bellows shaft seal and a lip seal with 2 fl.oz. oil
between. Seal faces are made of silicone carbide.
GR117
TM00 5477 0895