Wilo-DrainLift S


Easiest installation also in wall-mounting type installations due to low weight, space-saving compact design as well as integrated non-return valve
Maximum flexibility in connectivity through choice of connections on both long sides and end faces
Corrosion-resistant stainless steel motor, integrated motor protection against overheating, non-clogging free-flow impeller and acoustic alarm, optionally with connection to the Wilo-SmartHome for high operational reliability
Easy installation, maximum operational reliability.
The Wilo-DrainLift S sewage lifting unit is suitable for installation as a wall installation in single- and two-family houses.

Its flow selection, minimal dimensions and low weight make it easy to install even in confined spaces. Thanks to an additional radio alarm transmitter installed, a push message is sent to a smartphone in the event of a malfunction. This means maximum control and maximum operational reliability.


Compact sewage lifting unit as a single-pump system


Pumping wastewater with faecal matter (in accordance with DIN EN 12050-1) that cannot be piped to the sewer system through the use of natural inclines, and disposal of fluids with backflow protection from discharge points below the backflow level (in accordance with DIN EN 12056-1).


  • Ready for connection
  • Temperature monitoring sensor for the motor winding
  • Level monitoring with float switch control
  • Control unit with potential-free output for generalised fault indication
  • Integrated non-return valve (RV version)

Scope of delivery

  • Connection-ready sewage lifting unit with connected control unit and plug:
  • Control unit with non-volatile alarm system and plug
  • 1 seal for supply pipe DN 100
  • 1 O-ring opener for connection to a supply pipe DN 100
  • 1 non-return valve DN 80 (version "RV")
  • 1 sleeve for connection of a hand membrane pump or for connection to an inlet line Ø 50 mm
  • 1 sleeve for connection for venting DN 70
  • 3 noise-absorbing strips for silent installation
  • Fixing material
  • Installation and operating instructions

Model overview

Those. information

Name decoding

For example: DrainLift S 1/6T-RV
S Size
1 Number of pumps built-in
6 Max. head [m]
T Type of electrical connection to the mains:M = 1~230VT = 3~400V
RV Pressure connection version without = without non-return valveRV = with non-return valve

Technical data

  • Mains supply: 1~230V, 50Hz or 3~400V, 50Hz
  • Work mode: S3-15%, 120 sec
  • Temperature of pumped liquid: 3…40 °C, briefly 60 °C
  • Max. ambient temperature: 40 °C
  • Max. inlet volume: 21 litres
  • Flooding height: 2 m water column, max. for 7 days
  • Pressure connection: DN 80
  • Supply connection: 1x DN 40 / 1x DN 100 (optional)
  • Supply connection: 1x DN 40 / 1x DN 100 (optional)
  • Ventilation connection: DN 70
  • Protection class of waste water system: IP68
  • Protection class of control unit: IP54


  • Reservoir: synthetic material polyethylene
  • Motor housing: stainless steel 1.4404 (AISI 316L)
  • Motor housing: stainless steel
  • Hydraulic body: PE/PUR synthetic material
  • Wheel: synthetic material polyurethane


A ready-to-connect and fully floodable wastewater pumping station as single pump unit with gas- and watertight collecting tank with sloping bottom to prevent deposits and guarantee high operational reliability, optional supply pipes, level control via float switch and single phase or three phase electric motor with motor winding temperature control

Pre-mounted control unit for automatic operation with one potential-free contact for generalized fault indication, integrated and non-volatile alarm, adjustable shutdown delay time and pre-mounted plug.


Installation instructions Download
Documentation Download



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