Wilo-DrainLift M

Wilo-DrainLift M - Pumping waste water with faeces


Compact installation
Easy installation due to low weight and high delivery volume
Flexibility due to free choice of connection point for the supply line
Reliable operation thanks to integrated thermal motor protection and network-independent alarm


Wastewater lifting unit as a one-pump or two-pump system


Pumping wastewater with faecal matter (according to 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 (according to DIN EN 12056-1).


  • Ready for connection
  • Thermal monitoring of the electric motor
  • Level monitoring with float switch control
  • Non-volatile alarm
  • Potential free contact
  • Detachable pump cable
  • Non return valve (RV version)
  • Sealing for the supply line
  • Circular saw for the air inlet
  • Hose connection for venting
  • Seal for connection of suction pipe to hand membrane pump
  • Connection kit for pressure line
  • Attachment accessories
  • Acoustic insulating material
  • Control device

Control device Delivery set

  • Complete sewage lifting unit ready for connection, including:
  • Control unit with non-volatile alarm system and plug
  • 1 seal for supply line DN 100
  • 1 circular shear for inlet DN 100
  • 1 shaft seal for connection of a hand membrane pump or connection to a supply line Ø 50 mm
  • 1 sleeve for connection to vent DN 70
  • 1 flange adapter DN 80/100 with flat gasket, flexible hose insert and fixing material for connection of pressure line DN 100
  • 1 check valve DN 80 (only M1/8RV and M2/8)
  • Noise reducing strips for silent installation
  • accumulator 9 V
  • Fixing material
  • Installation and operating instructions

Model overview

Those. information

Explanation of the name

For example: Wilo-DrainLift M1 / ​​8 (1 ~) RV
M1 M1 = single pump unit M2 = double pump unit
/8 Max. head [m]
(1~) 1 ~: Single-phase version, 3 ~: Three-phase version
RV Model with check valvewithout specification: Model without check valve

Technical Specifications

  • Mains connection 1~230 V, 50 Hz or 3~400 V, 50 Hz
  • Power consumption P1 = 1.3 kW
  • Cable length from system to control unit 4 m/plug cable 1.5 m
  • Operating mode S3-15%, 80 sec.
  • Max. temperature of the liquids handled 40 °C, short 3 min, 60 °C
  • Max. ambient temperature 40 °C
  • Free passage for spherical solids 45 mm
  • Pressure connection DN 80
  • Connection to supply line DN 40/DN 100/DN 150
  • Connection to a supply DN 70
  • Min. height of inlet connection (installation level to middle of inlet connection) 180 mm
  • Protection class (without control device) IP 67
  • Total tank volume depending on type from 62 l to 115 l
  • Inlet volume depending on type 24 l to 40 l


  • Motor housing: stainless steel 1.4301
  • Fluid body: Grey cast iron EN-GJL-250
  • Impeller: Polyurethane synthetic material
  • Tank: synthetic material polyethylene


Ready-to-connect and fully floodable wastewater lifting unit (flood level: 2 m water column, immersion time: 7 days) with gas- and waterproof collection tank and anti-surfactor. Centrifugal pump with free-flow impeller.

DrainLift M1/8:

Single-pump unit with single-phase or three-phase electric motor for automatic operation. Switchgear with shock-proof or CEE plug, potential-free contact, integrated non-volatile alarm and adjustable follow-up time.

RV version with included check valve.

DrainLift M2/8:

Dual-pump system for automatic operation (with automatic pump changeover, standby pump mode and second pump on-off mode during peak loads). Thanks to the integrated double check valve, only one pressure line needs to be connected. Switchgear with shock-proof or CEE plug, potential-free contact, maintenance interval display and early fault detection as well as integrated volatile alarm and adjustable follow-up time.

Caution: The control unit must not be allowed to flood and must therefore be


Declaration of Conformity Download
Installation instructions Download
Documentation Download



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