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


  • Fully automatic water supply including break tank for indirect connection to the public water supply network
  • Pumping of drinking water and process water, cooling water, fire water (apart from fire-fighting 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 3~400 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
  • Rated 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 regarding 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
    • Firefighting 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

Scope of delivery

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


Other mains connections on request


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

Article Number 2535459
Edition 2023-08
Page format 50.4 x 71.3 mm
Number of pages 72
PDF (31 MB)

General overview

General Overview 2023 - International version

Edition 2022
Page format 209.9 x 297.0 mm
Number of pages 74
PDF (24 MB)

Certificate REACH

REACH Regulation

Edition 2021-05
Page format 209.9 x 297.0 mm
Number of pages 4
PDF (262 KB)