Wilo-Sub TWU 4

Series description

Special features/product advantages

  • Parts that come in contact with fluids are corrosion-free
  • Integrated non-return valve
  • Low-wearing due to floating impellers
  • Maintenance-friendly motor

Design type

Multistage 4" submersible pump in jacketed construction for vertical and horizontal installation

Application

  • For water supply from boreholes and rainwater storage tanks
  • For domestic water supply, sprinkling and irrigation
  • Pressure boosting
  • Lowering the water level
  • For pumping water without long-fibre and abrasive constituents

Equipment/function

  • Multistage submersible-motor pump with radial or semi-axial impellers
  • Hermetically cast motors
  • Integrated non-return valve
  • NEMA coupling
  • Single-phase or three-phase motor
  • Integrated thermal motor protection for single-phase motor

Scope of delivery

  • Hydraulics + motor completely assembled
  • 1.5/1.75/2.5/4.0 m connection cable approved for drinking water (cross-section: 4x1.5 mm2)
  • Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
  • Installation and operating instructions

Type key

E.g.

Wilo-Sub TWU 4-0207-C

TWU

Submersible pump

4

Diameter of the hydraulic unit in inches ["]

02

Rated volume flow [m3/h]

07

Number of hydraulic stages

C

Series generation

Technical data

  • Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
  • Submerged operating mode: S1
  • Fluid temperature: 3-30 °C
  • Minimum flow rate at motor: 0.08 m/s
  • Max. sand content: 50 g/m3
  • Max. number of starts: 20/h
  • Max. submersion depth: 200 m
  • Protection class: IP 68
  • Pressure connection: Rp 1¼ - Rp 2

Materials

  • Hydraulic housing: Stainless steel 1.4301
  • Impellers: Noryl
  • Hydraulics shaft: 1.4104 stainless steel
  • Motor housing: Stainless steel 1.4301
  • Motor shaft: 1.4305 stainless steel

Description/construction

Submersible-motor pump for vertical or horizontal installation.

Hydraulics

Multistage submersible-motor pump with radial or semi-axial impellers in sectional construction. Integrated non-return valve. All parts in contact with the fluid are made of corrosion-free materials.

Motor

Corrosion-free single-phase or three-phase motor for direct starting.Sealed and hermetically cast motor with enamel-insulated winding, resin-impregnated, self-lubricating bearing, with water-glycol filling.

Cooling

The motor is cooled by the fluid. The motor must always be operated in submerged state. The limit values for the max. fluid temperature and the minimum flow rate must not be exceeded. Vertical installation is possible optionally with or without cooling jacket. Cooling jacket is required for horizontal installation.

Duty chart

Sub TWU 4

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Wilo-Sub TWU ..., TWU 4-...-QC, TWU 4-...-P&P

Article Number 2019023
Edition 1103
Version number 03
Page format A4
Number of pages 30

PDF (578 kB)

Download

Wilo-Sub TWU ..., TWU 4-...-QC, TWU 4-...-P&P

Article Number 2019023
Edition 1103
Version number 03
Page format A4
Number of pages 384

PDF (2 MB)

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