Wilo-DrainLift Box

Wilo-DrainLift Box - Compact sewage lifting unit for underfloor installation


  • Convenient installation thanks to built-in pump and check valve
  • Large tank volume ensures few starts
  • Easy maintenance
  • Stainless steel tile access cover with odour trap


Compact lifting unit for waste water under-floor installation


Suitable for delivering fecal-free wastewater (compliant with DIN EN 12050-2) that cannot be piped to the sewer system through the use of natural inclines.


  • Ready for connection
  • Synthetic tank with pre-installed wastewater pump, discharge line and integrated non-return valve
  • Temperature monitoring sensor for motor winding
  • Level monitoring with float switch control

Scope of delivery

  • Under-floor drainage system with complete piping, non-return valve and pre-installed pump
  • Standard and "D" version with Schuko plug
  • Version "DS" with control unit and power supply cable with open ends
  • Tank cover with tile inspection hatch and floor drain
  • Decorative installation cover
  • Sealing ring for sealing the tank lid and odour trap
  • Pressure hose (inside diameter: 40 mm) incl. hose clamps
  • Installation and operating instructions

Model overview


Product designation Article number
DrainLift Box 32/8 2521820
DrainLift Box 32/11 2521821
DrainLift Box 40/10 2521822
DrainLift Box 32/8D 2546470
DrainLift Box 32/8DS 2546471
DrainLift Box 32/11D 2546472
DrainLift Box 32/11DS 2546473
DrainLift Box 40/10D 2546474
DrainLift Box 40/10DS 2546475
DrainLift Box 32/11HD D 2546508
DrainLift Box 32/11HD DS 2546509
DrainLift Box 40/11 2553190
DrainLift Box 40/11D 2553191
DrainLift Box 40/11DS 2553192

Those. information

Explanation of the name

For example: Wilo-DrainLift Box 32/8
Box Dirty water pressure unit (underfloor installation)
32 Nominal discharge connection (DN 32, & Oslash; 40)
8 Max. head [m]

Technical Specifications

  • Mains connection 1~230 V, 50 Hz
  • 10 m (5 m at 40/10) mains cable, with plug with protective contact
  • Operating mode S3-25 %
  • Temperature of pumped liquid max. 35 °C, at 32/8 and 32/11 briefly (3 min) 60 °C
  • Pressure connection Ø 40 mm
  • Connection to supply pipe 100 mm
  • Air connection 100 mm
  • Degree of protection IP 68
  • Total tank volume 113 l
  • Inlet volume 24 - 29 l


  • Underfloor tank: Polyethylene synthetic material
  • Motor: Stainless steel
  • Housing of hydraulic part: synthetic material polypropylene-GF30 for Box 32..., grey cast iron EN-GJL-200 for Box 40


Automatic drainage system with integrated submersible pump and non-return valve. Ready for underfloor installation. Flexible connection thanks to two pressure connections DN 100.


Wilo-DrainLift Box Download
Installation and operating instructions Download
Documentation Download



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