Water supply

Water Supply

Our efficient solutions for water extraction and use

Fresh, clean water is becoming increasingly scarce and expensive worldwide. That's why efficient extraction and use of this resource is one of the greatest challenges of our time. We are conscious of our social responsibility in this area and are using our expertise to help create solutions.

We have developed special pumps and components for water purification systems capable of handling the many different water compositions. Our high-performance solutions for our partners and users are designed to transport water as far and as efficiently as possible. They are used in the following areas:

  • Rainwater utilisation
  • Water supply and pressure boosting
  • Fire fighting
  • Water purification
  • Raw water intake
  • Desalination
  • Professional irrigation/agriculture

Our product highlights:


the all-rounder

emhil web

Non-self-priming water supply unit with frequency converter


  • Heavy-duty multistage pump with stainless steel hydraulics
  • Easy operation and adjustment
  • Large display (32 characters) with plain text display
  • 4 LEDs for clear status display
  • Simplified menu navigation
  • Plug & Pump, the system is pre-assembled and fitted with connecting cable
  • Thanks to the built-in filter, it satisfies the EMC standards for domestic use (EN 61000-6-2 and EN 61000-6-3)
  • APP function: periodic analysis of the system behaviour and automatic adjustment of the control parameters (PID)
  • AIS function: automatic short-period running to prevent the hydraulics freezing up at temperatures < 5 °C
  • ART function: system automatically attempts to restart after a fault
  • Float switch can be connected as an option

> Online Catalogue

Wilo-EMU D 500

the ready-one

emu d 500

Multistage submersible pump in sectional construction with VdS approval for vertical or horizontal installation for supplying sprinkler systems


  • VdS certification
  • Certified non-return valve available as accessory
  • Cast material version (also available in bronze)
  • Pressure shroud installation possible
  • Vertical and horizontal installation possible (depending on the number of stages)

> Online Catalogue

Wilo-Helix EXCEL

the excellent one

helix excel web

Non-self-priming, highly efficient fully stainless-steel high-pressure multistage centrifugal pump with EC motor in vertical design with integrated high-efficiency drive and in-line connections


  • Highly efficient EC motor (efficiency higher than IE4 limit values in accordance with IEC TS 60034-31 Ed.1)
  • Efficiency-optimised, laser-welded 2D/3D high-efficiency hydraulics
  • High Efficiency Drive with wide control range
  • Optional interfaces for BUS communication via plug-in IF-modules
  • Control modes: Speed control, constant pressure and PID
  • The HELIX series is available with a user-friendly "X-Seal" cartridge mechanical seal (with standard gasket) which enables quick and easy maintenance
  • The spacer coupling allows the mechanical seal to be replaced without removing the motor (from 7.5 kW)
  • WRAS/KTW/ACS approval for all parts that come in contact with the fluid (EPDM version)

> Online Catalogue

Wilo-Jet HWJ

the handy one

jet hwj web

Self-priming water-supply unit


  • Ideal for outdoor applications (hobby, garden)
  • Rust-free stainless steel prevents corrosion, even with prolonged service periods
  • Reduction of switch-on frequency and avoidance of fluid hammer, thanks to diaphragm pressure vessel with 20/50 l capacity
  • Electrical and hydraulic connections already in place, quick and safe to install

> Online Catalogue


the easy-maintenance one


Axially spilt case pump mounted on a baseplate


  • Easy maintenance (without removing the pressure or suction pipes)
  • Low NPSH value (thanks to double suction impeller)
  • Longer service life (load is distributed to bearings)
  • Both directions of rotation are possible (clock-wise and anti-clock-wise)
  • Permanently lubricated bearings

> Online Catalogue

Wilo-SiBoost Smart Helix EXCEL

the constant pressure one

sismart booster web


Highly efficient water-supply unit (non self-priming) ready for connection with 2 to 4 vertically arranged Helix EXCEL stainless steel high-pressure centrifugal pumps switched in parallel; each pump is equipped with an integrated air-cooled, high-efficiency frequency converter and an EC motor, including Smart Controller SCe. Valves and sensors are protected for safe and reliable installation.


  • Highly efficient, heavy-duty system with Helix EXCEL stainless steel high-pressure multistage centrifugal pumps, with integrated air-cooled frequency converter
  • Highly efficient EC motor (efficiency higher than IE4 limit values in accordance with IEC TS 60034-31 Ed.1)
  • Highly efficient pump hydraulics, electronically controlled by EC motors
  • Hydraulics of entire system are pressure-loss optimised.
  • Superproportionally large frequency converter control range from 25 Hz to a maximum of 60 Hz
  • Maximum control quality and very simple operation due to the SCe control device used, with symbol-based LC display, simple navigation with a clear menu, rotary knob for easy setting of parameters

> Online Catalogue

Wilo-SiFire EN

the steady one

sifire en beautyshot web


Pressure boosting system for fire fighting


  • Designed specifically for sprinkler systems and fully compatible with EN 12845
  • High modularity and easy installation with compact design or individual parts
  • Main pump and standby pump with electric motor or diesel engine with a capacity up to 250 kW
  • Contains all necessary functions for maintenance and test programme
  • Simple operation through red-button technology and display
  • Communication possible via BACnet or Modbus
  • Vibration-absorbing baseplate for diesel pump and motor
  • Jockey pump with automatic start and stop function
  • Special hook and forklift openings for easy lifting

> Online Catalogue