Wilo-Economy COE-2 TWI 5

Series description


Pressure boosting system with two parallel submersible pumps (suitable for installation outside water), vertical, non-self-priming, made of stainless steel, water-cooled and low-noise. Mounted on a base frame, with complete pipework including all hydraulic components, central switchgear, pressure switch and all cabling.


Pressure boosting and water supply in residential applications and for small commercial installations where compact construction and a low noise level are necessary.

Type key

Example:COE-2 TWI 5-304-DM/ BC
COECOmpact Export series
-2Number of pumps
TWI 5Pump family
-3Nominal flow rate: 3 m3/h
04Number of stages: 4
-DM3~400 V, 50 Hz
-EM 1~230 V, 50 Hz
/ BCSwitchgear

Special features/product advantages

  • Pumps in the TWI 5 series with low noise due to the water-cooled motor, between 51 dB (A) and 61 dB (A)
  • 2-pump pressure boosting system in compact design due to vertical pump layout
  • Economical system, based on the basic functions of the BC switchgear
  • Long service life due to the stainless steel construction of the pumps and the stainless steel piping

Technical data

  • Volume flow Qmax: 14 m3/h
  • Delivery head Hmax: 68m
  • Mains connection 3~400 V or 1~230 V ±10% 50 Hz
  • Fluid temperature max: +40°C
  • Operating pressure max: 10 bar
  • Nominal connection diameters G 2"


  • Intake and outflow collector pipes
  • Ball shut-off valves on the suction side and pressure side
  • Non-return valve on the pressure side
  • 1 manometer
  • 2 pressure switches
  • BC switchgear


  • TWI 5: made completely from AISI 304 (1.4301), multistage and water-cooled version, KTW & TÜV-certified
  • Piping made of AISI 304 (1.4301), G2”, PN 10
  • Non-return valves & ball shut-off valves made of brass
  • Base frame made of galvanised steel


  • Piping: stainless steel AISI304
  • Valve: Brass
  • Non-return valve : Brass
  • BC switchgear: Plastic
  • Base frame: galvanised steel

Scope of delivery

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

Duty chart

Pump curves






Submersible pump

Multistage centrifugal pump


Stationary water-supply unit

Directly flanged motor


Motor data

Connecting cable (version 1~230 V)


Capacitor (1~230 V version)

Thermal motor protection switch (EM version)


Pressure switch

Pressure gauge


Safety valve made of polypropylene

Diaphragm pressure vessel (20/50 l)

Including installation and operating instructions


General overview

Edition 2017
Page format A4
Number of pages 72

PDF (46 MB)


Wilo-TWI 5, Wilo-TWI 5-SE

Article Number 4104146
Edition 1304
Version number 04
Page format A4
Number of pages 17

PDF (2 MB)



PDF: Wilo-Economy COE-2 TWI 5


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