Catalogue creation
My favorites
Product comparison
Wilo-Economy CO-1 MVIS.../ER | Wilo
Your advantages
Wilo-Economy CO-1 MVIS.../ER

Your advantages

  • Virtually noiseless system due to a glandless stainless-steel high-pressure multistage centrifugal pump
  • Up to 20 dB[A] quieter than conventional systems with comparable hydraulic output
  • Operationally reliable due to combination of MVIS pump series with ER-1 switchgear
Series description
Economy CO-1 MVIS


Water-supply unit with a glandless, non-self-priming high-pressure multistage centrifugal pump


  • Fully automatic water supply in inlet mode, either from the public water supply network or from a tank.
  • Pumping of drinking water, domestic hot 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 MVIS series pump
  • Maximum stage number: 10
  • Three-phase current glandless pump motor
  • Components that come in contact with the fluid are corrosion-resistant
  • Base frame made of galvanised 1.4301 stainless steel, with height-adjustable vibration absorbers for insulation against structure-borne noise
  • Shut-off valve on pressure side
  • Non-return valve, pressure side
  • Diaphragm pressure vessel 8 l, PN16, pressure side



Wilo-CO-1 MVIS 204/ER


Compact pressure boosting system


With one pump


Pump series


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


Number of single-pump stages


Control device; ER = Economy controller

Technical data

  • Mains connection 3~230/400 V ±10 %, 50 Hz (other versions on request)
  • Max. fluid temperature 50 °C
  • Max. ambient temperature of 40 °C
  • Operating pressure 6 bar
  • Inlet pressure 6 bar
  • Rated pressure stages 6/10/16 bar
  • Nominal connection diameters, on inlet side Rp 1¼ - Rp 1½
  • Nominal connection diameters on discharge side R 1¼
  • Rated speed 2800 rpm
  • Protection class IP54 (ER control device)
  • 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 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


  • Foot 1.4301 stainless steel
  • Impellers 1.4301 stainless steel
  • Stage chambers 1.4301 stainless steel
  • Pressure shroud 1.4301 stainless steel
  • Shaft 1.4122 stainless steel
  • Bearing/mechanical seal made of carbon, resin-impregnated
  • Pipework made of 1.4571 stainless steel


  • Connection-ready water-supply unit, mounted on base frame made of stainless steel including vibration absorber, complete pipework made of stainless steel, including all necessary fittings and shut-off devices (except for inlet-side shut-off device), pressure control kit, stainless steel glandless high-pressure multistage centrifugal pump (MVIS) and ER-1 switchgear, mounted, wired and ready for connection; trip electronics in switchgear for low-water cut-out.
  • Diaphragm pressure vessel: 8 l/PN16 located on the discharge side with a butyl rubber diaphragm, completely safe in accordance with food safety laws; for testing and inspection purposes, with shut-off ball cock, with drain and throughflow fitting according to DIN 4807
  • Switchgear: the system is standard-equipped with an ER-1 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-Multivert MVIS

Article Number 2020405
Edition 0009
Page format A4
Number of pages 13
PDF (1003 KB)

Wilo-ER 1, ER 1-A

Article Number 2021982
Edition 1810
Page format 209.9 x 297.0 mm
Number of pages 36
PDF (1 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

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)


Atest PZH Zestawy CO, COR

Page format 210.3 x 297.0 mm
Number of pages 1
PDF (369 KB)