Wilo-Economy CO/T-1 Helix V | Wilo

Wilo-Economy CO/T-1 Helix V

Your advantages
Wilo-Economy CO/T1 Helix V

Your advantages

  • Compact system, ready for connection, for all applications that require system separation
  • Heavy-duty system due to stainless steel high-pressure multistage centrifugal pumps of the Helix V series
  • Easily adjustable and operationally reliable due to the CE control device used
Series description
CO-T Helix V 1


Water-supply unit with system separation and a non-self-priming high-pressure multistage centrifugal pump


  • Fully automatic water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial systems.
  • Pumping of drinking water and process water, cooling water, fire water (apart from fire-extinguishing systems in accordance with DIN 14462 and with the approval of the local fire safety authorities) or other types of industrial water that do not attack the materials either chemically or mechanically and do not contain abrasive or long-fibre constituents.


  • 1 Helix V series pump
  • Maximum stage number: 14
  • PE break tank, atmospherically ventilated (150 l)
  • Components that come in contact with fluid are corrosion-resistant
  • Shut-off device, on the pressure side
  • Non-return valve, on suction side
  • Break tank including float valve and float switch (low-water signal transmitter)
  • Diaphragm pressure vessel 8 l, PN 16, on the pressure side
  • Low-water cut-out switchgear



Wilo-CO/T-1 Helix V 403/CE


Compact pressure boosting system


With integrated break tank for system separation


With one pump

Helix V

Pump series


Rated volume flow of the single pump [m3/h]


Number of single pump stages


Control device; CE = Controller Economy

Technical data

  • Mains connection 3~230/400 V ±10 %, 50 Hz (other versions on request)
  • Max. fluid temperature 40 °C
  • Max. ambient temperature of 40 °C
  • Operating pressure 16 bar
  • Inlet pressure 6 bar
  • Switching pressure stages 6/10/16 bar
  • Nominal connection diameters on discharge side Rp 1 ¼"
  • Nominal connection diameters on inlet side Rp 1 ¼"
  • Rated speed 2900 rpm
  • Protection class IP41
  • Switching capacity P2 max. at max. 10 A = 4 kW (for > 4 kW downstream electromechanical power section)
  • Fuse protection on mains side AC 3 according to motor power and EVU regulations
  • Approved fluids (other fluids on request):Note on fluids: Approved fluids are generally waters which do not attack the materials used, neither chemically nor mechanically, and do not contain any abrasive or long-fibre constituents.
    • Pure water without settling sediments
    • Process water, cold water, cooling water and rainwater
    • Drinking water
    • Fire water


  • Impellers and stage chambers 1.4301/1.4404 stainless steel
  • Pump housing made of 1.4301/1.4404 stainless steel
  • Shaft 1.4301/1.4404 stainless steel
  • Gasket EPDM (EP 851) / FKM (Viton)
  • Housing cover made of 1.4301/1.4404 stainless steel
  • Housing bottom 1.4301/1.4404 stainless steel
  • Mechanical seal of B-carbon/tungsten carbide, SiC/carbon
  • Pressure shroud made of 1.4301/1.4404 stainless steel
  • Bearing of tungsten carbide
  • Pump base EN-GJL-250
  • Pipework made of 1.4307 stainless steel


  • Connection-ready water-supply unit, mounted on a PE baseplate, complete pipework, including all necessary valves and shut-off valves (except for inlet-side shut-off device), pressure sensor kit, glanded version (Helix V series) stainless steel high-pressure multistage centrifugal pump and CE control device, mounted, wired and ready for connection; trip electronics in low-water cut-out switchgear fitted in the control device
  • Diaphragm pressure vessel: 8 l/PN 16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws; for testing and inspection purposes, with a shut-off device, with drain and flow device according to DIN 4807
  • Control device: the system is standard-equipped with a CE Economy Controller

Delivery state

  • factory-mounted, ready for connection pressure boosting system checked for functionality and impermeability
  • Packaging
  • Installation and operating instructions

Installation and operating instructions

Wilo-Helix V/ FIRST V 2-4-6-10-16

Article Number 4143727
Edition 1607
Page format A4
Number of pages 17
PDF (4 MB)

Wilo-Economy CO-1 ..., CO/T-1 ... .../CE+ .../ER,Wilo-Comfort-Vario COR-1 ... ...-GE .../VR

Article Number 2527299
Edition 2021-07
Page format 209.9 x 297.0 mm
Number of pages 32
PDF (4 MB)

General overview (Documents)

General overview 2019 International version

Article Number 2200591
Edition 2018
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (40 MB)

General overview 2021 International version

Edition 2020
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (10 MB)

Certificate REACH (Documents)

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (212 KB)