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Wilo-Sub TWU 4-QC | Wilo
Your advantages
Sub-TWU 4-QC

Your advantages

  • Parts that come in contact with fluids are corrosion-free
  • Integrated non-return valve
  • Low-wearing due to floating impellers
  • Maintenance-friendly motor
  • Quick and easy extension of motor cable, without dismantling the hydraulics

Recommended services

Series description
Sub TWU 4 QC

Design

Multistage 4" submersible pump in shroud design 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

Typekey

E.g.

Wilo-Sub TWU 4-0207-C-QC

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

QC

Quick Connect CableQuick connect cable for simple and fastextension of the motor cable

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

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 AC motor for direct starting. Sealed and hermetically cast motor, resin-impregnated, with enamel-insulated winding, 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.

Scope of delivery

  • Hydraulics + motor fully mounted
  • 1.5 or 1.75 m connecting 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

Options

  • Motor versions for special voltages 1~230 V, 60 Hz; 3~380 V, 60 Hz

Accessories

  • Quick Connect Cable: Quick-connection cable for fast and easy extension of the motor cable.
  • Cooling jacket pipes
  • Diaphragm pressure vessel
  • Cable kits for potable and process water
  • Float switch
  • Switchgears
  • Connection and installation material
Documents

Installation and operating instructions

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

Article Number 2019023
Edition 1103
Number of pages 384
PDF (2 MB)

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

Article Number 2019023
Edition 1103
Number of pages 30
PDF (565 KB)

General overview

General Overview 2024 - International version

Edition 2022
Number of pages 74
PDF (33 MB)

Certification booklet

Wilo-Sub TWU 4

Article Number 6080453
Edition 1701
Number of pages 8
PDF (510 KB)

Wilo-EMU D/DCH/K/KM/SCH (w/o motor), Wilo-Sub TWI/TWU (w/o motor), Wilo-Actun ZETOS-K8 (w/o motor), Wilo-Actun ZETOS-K10 (w/o motor)

Article Number 6080455
Edition 2021-06
Number of pages 72
PDF (7 MB)

Certificate REACH

Group Statement REACH

Edition 2021-05
Number of pages 4
PDF (276 KB)
Product selection
Number of results: 26
0.37 … 3 kW
[26]
Product descriptionMotor diameter ØNumber of stagesRated power P2Minimum efficiency index (MEI)ConnectionArticle number
Sub TWU 4.02-07-C-QC (1~230 V, 50 Hz)
4 in (")
7
0.37 kW
≥0.7
Rp 1¼
6046685
Sub TWU 4.02-07-C-QC (3~400 V, 50 Hz)
4 in (")
7
0.37 kW
≥0.7
Rp 1¼
6046682
Sub TWU 4.02-10-C-QC (1~230 V, 50 Hz)
4 in (")
10
0.55 kW
≥0.7
Rp 1¼
6046684
Sub TWU 4.02-10-C-QC (3~400 V, 50 Hz)
4 in (")
10
0.55 kW
≥0.7
Rp 1¼
6046681
Sub TWU 4.02-14-C-QC (1~230 V, 50 Hz)
4 in (")
14
0.75 kW
≥0.7
Rp 1¼
6046683
Sub TWU 4.02-14-C-QC (3~400 V, 50 Hz)
4 in (")
14
0.75 kW
≥0.7
Rp 1¼
6046680
Sub TWU 4.02-20-C-QC (1~230 V, 50 Hz)
4 in (")
20
1.1 kW
≥0.7
Rp 1¼
6049365
Sub TWU 4.02-20-C-QC (3~400 V, 50 Hz)
4 in (")
20
1.1 kW
≥0.7
Rp 1¼
6049372
Sub TWU 4.04-05-C-QC (1~230 V, 50 Hz)
4 in (")
5
0.37 kW
≥0.7
Rp 1¼
6049366
Sub TWU 4.04-05-C-QC (3~400 V, 50 Hz)
4 in (")
5
0.37 kW
≥0.7
Rp 1¼
6049373
Sub TWU 4.04-07-C-QC (1~230 V, 50 Hz)
4 in (")
7
0.55 kW
≥0.7
Rp 1¼
6049367
Sub TWU 4.04-07-C-QC (3~400 V, 50 Hz)
4 in (")
7
0.55 kW
≥0.7
Rp 1¼
6049374
Sub TWU 4.04-09-C-QC (1~230 V, 50 Hz)
4 in (")
9
0.75 kW
≥0.7
Rp 1¼
6049368
Sub TWU 4.04-09-C-QC (3~400 V, 50 Hz)
4 in (")
9
0.75 kW
≥0.7
Rp 1¼
6049375
Sub TWU 4.04-14-C-QC (1~230 V, 50 Hz)
4 in (")
14
1.1 kW
≥0.7
Rp 1¼
6049369
Sub TWU 4.04-14-C-QC (3~400 V, 50 Hz)
4 in (")
14
1.1 kW
≥0.7
Rp 1¼
6049376
Sub TWU 4.04-18-C-QC (3~400 V, 50 Hz)
4 in (")
18
1.5 kW
≥0.7
Rp 1¼
6049377
Sub TWU 4.04-27-C-QC (3~400 V, 50 Hz)
4 in (")
27
2.2 kW
≥0.7
Rp 1¼
6049378
Sub TWU 4.04-35-C-QC (3~400 V, 50 Hz)
4 in (")
35
3 kW
≥0.7
Rp 1¼
6049379
Sub TWU4.08-05-C-QC (1~230 V, 50 Hz)
4 in (")
5
0.75 kW
≥0.4
Rp 2
6081633
Sub TWU4.08-05-C-QC (3~400 V, 50 Hz)
4 in (")
5
0.75 kW
≥0.4
Rp 2
6081635
Sub TWU4.08-07-C-QC (1~230 V, 50 Hz)
4 in (")
7
1.1 kW
≥0.4
Rp 2
6081634
Sub TWU4.08-07-C-QC (3~400 V, 50 Hz)
4 in (")
7
1.1 kW
≥0.4
Rp 2
6081636
Sub TWU4.08-10-C-QC (3~400 V, 50 Hz)
4 in (")
10
1.5 kW
≥0.4
Rp 2
6081637
Sub TWU4.08-15-C-QC (3~400 V, 50 Hz)
4 in (")
15
2.2 kW
≥0.4
Rp 2
6081638
Sub TWU4.08-21-C-QC (3~400 V, 50 Hz)
4 in (")
21
3 kW
≥0.4
Rp 2
6081639