Wilo-Comfort-Vario COR/T-1 Helix VE...-GE | Wilo

Wilo-Comfort-Vario COR/T-1 Helix VE...-GE

Your advantages
Wilo-COR-T 1 Helix VE

Your advantages

  • Compact and ready-for-connection unit for all applications that require system separation via a "Free outlet" (type AB) safety device in accordance with EN 13077
  • Heavy-duty system due to the stainless steel high-pressure multistage centrifugal pumps of the Helix VE series with integrated air-cooled frequency converters
  • High energy savings thanks to optimum load adjustment via variable pressure control (p-v)
  • Lower life cycle costs thanks to the new Helix design
  • User-friendly display with Green Button Technology and full-text menu
  • IF plug-in module for quick communication with the BMS
Series description


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


  • 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 pump of the Helix VE 4 or Helix VE 6 series with IE4-equivalent standard motor and continuous auto control with integrated frequency converter
  • Maximum stage number: 13
  • PE break tank, atmospherically ventilated (150 l) for direct connection to the public water supply network. System separation takes place in accordance with DIN EN 1717, "Free drain", type AB in accordance with EN 13077
  • 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-COR/T-1 Helix VE 403


Compact pressure-boosting system with integrated speed control


With integrated break tank for system separation


With one pump

Helix VE

Pump series with integrated speed control


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


Number of single pump stages

Technical data

  • Mains connection 3~400 V ±10 %, 50 Hz; 3~380/440 V ±10 %, 60 Hz
  • 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 1500 – 3770 rpm
  • Switching capacity P2 max. at max. 10 A = 4 kW
  • 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 stainless steel 1.4301
  • Pump housing made of 1.4301 stainless steel
  • Shaft stainless steel 1.4301
  • Gasket EPDM (EP 851) / FKM (Viton)
  • Housing cover made of 1.4301 stainless steel
  • Housing bottom made of 1.4301 stainless steel
  • Mechanical seal of B-carbon/tungsten carbide, SiC/carbon
  • Pressure shroud made of 1.4301 stainless steel
  • Bearing of tungsten carbide
  • Pump base EN-GJL-250
  • Pipework made of 1.4307 stainless steel


  • Ready for connection water-supply unit, constructed on PE baseplate, complete pipework, including all necessary valves and shut-off devices (excluding intake side shut-off device), kit pressure sensor, stainless steel high-pressure multistage centrifugal pump in glanded version with integrated frequency converter (series Helix VE)
  • 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

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 VE 22-36-52

Article Number 4151995
Edition 1601
Page format A4
Number of pages 39
PDF (8 MB)

Wilo-Helix VE 2-4-6-10-6

Article Number 4151993
Edition 1601
Page format A4
Number of pages 38
PDF (7 MB)

Wilo-SiBoost Smart 1, Comfort-Vario COR-1 ...-GE, Comfort-Vario COR/T-1…-GE

Article Number 2535459
Edition 2020-11
Page format 209.9 x 297.0 mm
Number of pages 52
PDF (12 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)