Wilo-Initial Drain

Deciphering the name

Example Wilo-Initial DRAIN 10-7
Initial Wilo-Initial Line
DRAIN Series
10 Nominal volume flow in m³/h
-7 Rated head in m


Automatic motor protection with temperature sensor
Automatic mode via float switch
Superior reliability due to robust material and double O-ring

A type

Submersible drainage pump


  • Pumping
  • Waste water free of faeces and long-fiber fractions
  • Contaminated water

Equipment / function

  • Power cable with plug
  • Connected float switch
  • Thermal motor protection

Contents of delivery

  • Pump with 10 m cable, mains plug and connected float switch
  • Hose connection Ø 24/32 mm and Rp 1 "thread
  • Installation and operating instructions

Model overview


Product designation Network connection Flow rate max. Q Head max. H Optimum flow Q opt Article number
Initial DRAIN 10-7 1~230 V, 50 Hz - - 8.667m³/h 4168021
Initial DRAIN 13-9 1~230 V, 50 Hz - - 10.27m³/h 4186548

Those. information

Technical Specifications

  • Connection to mains 1~ 230 V, 50 Hz
  • Protection class: IP68
  • Max. immersion depth: 5 м
  • Temperature of pumped liquid: +3 to +35 °C
  • Cable length: 10 m
  • Pressure connection: G 1½


  • Motor housing: Fe 370 galvanised
  • Pump casing: Polypropylene
  • Impeller: PA6 GF30
  • Shaft: 1.4005 (AISI 416)
  • Lip seal: NBR (nitrile rubber)
  • Seal: NBR (nitrile rubber)


Submersible pump for stationary and portable wet well installation for fully automatic operation, thanks to float switch installation.

Hydraulic part

  • The pumps of the Initial Drain series have a radial impeller and a free passage of 5 mm.
  • The connection to the pressure connection is made as vertical threaded connection Rp 1½.

Electric motor

Single-phase submersible motor with integrated thermal overload protection and automatic restart.


Equipped with a 10 m power cable with shock-proof plug and integrated float switch.




Wilo CAD

The Wilo CAD online library contains DWG drawings of Wilo pumping equipment. In this library, the dimensions of the pumping equipment are given as a guideline. Please note that the contents of the Wilo CAD online library are subject to technical changes.

More in this category:

Need a consultation?

We will tell you in detail about our services, types of work and typical projects, calculate the cost and prepare an individual offer!