Wilo-Sub TWU 4-...-GT
Your advantages
- Low operating costs due to optimised hydraulics and efficient motors for targeted use in geothermal applications
- High annual performance factor (JAZ) through increased system effectiveness
- High operational reliability thanks to floating impellers and integrated non-return valve
- Easy installation via Quick Connect variant for quick and easy extension of the motor cable
Recommended services
Design
Multistage 4" submersible pump in shroud design for vertical and horizontal installation
Application
- Geothermal applications
- 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
- Multi-stage submersible pump with radial or semi-axial impellers
- Hermetically cast motors
- Integrated non-return valve
- NEMA coupling
- Three-phase motor
Typekey
E.g. | Wilo-Sub TWU 4-0203-C-QC-GT |
TWU | Submersible pump |
4 | Diameter of the hydraulic unit in inches ["] |
02 | Rated volume flow [m3/h] |
03 | Number of hydraulic stages |
C | Series generation |
I | Motor shroud in 1.4571, motor connection via flat male tab |
QC | Quick Connect CableQuick connect cable for simple and fastextension of the motor cable |
GT | for geothermal applications |
Technical data
- Mains connection: 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
Materials
- Hydraulic housing: Stainless steel 1.4301
- Impellers: Noryl
- Hydraulics shaft: Stainless steel 1.4104
- Motor housing: Stainless steel 1.4301
- Motor shaft: Stainless steel 1.4305
Construction
Submersible pump for vertical or horizontal installation.
Hydraulics
Multi-stage submersible 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 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 maximum 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 and motor ready assembled
- Connection cable with drinking water approval (TWU 4-…-GT with 15 m cable; TWU 4-…-GT-QC with short cable and plug for rapid replacement)
- Installation and operating instructions
Options
- Motor versions for special voltages 3~380 V, 60 Hz; 3~460 V, 60 Hz
Accessories
- Cooling jacket pipes
- Diaphragm pressure vessel
- Cable kits for potable and process water
- Float switch
- Switchgears
- Connection and installation material
Installation and operating instructions
Wilo-Sub TWU ..., TWU 4-...-QC, TWU 4-...-P&P
| Article Number | 2019023 |
| Edition | 1103 |
| Number of pages | 384 |
| Language | da, en, et, fi, lv, mk, no, pt, sl, sr |
PDF (2 MB)Wilo-Sub TWU ..., TWU 4-...-QC, TWU 4-...-P&P
| Article Number | 2019023 |
| Edition | 1103 |
| Number of pages | 30 |
| Language | en |
PDF (565 KB)Certification booklet
Wilo-Sub TWU 4
| Article Number | 6080453 |
| Edition | 1701 |
| Number of pages | 8 |
| Language | language neutral |
PDF (510 KB)Group Statement
Group Statement REACH
| Edition | 2021-05 |
| Number of pages | 5 |
| Language | language neutral |
PDF (279 KB)| Product description | Mains connection | Motor diameter Ø | Number of stages | Rated power P2 | Minimum efficiency index (MEI) | Connection | Article number | |
|---|---|---|---|---|---|---|---|---|
Sub TWU 4.02-03-DM-D-GT | 3~400 V, 50 Hz | 4 in (") | 3 | 0.25 kW | ≥0.7 | Rp 1¼ | 6091418 | |
Sub TWU 4.02-03-DM-D-QC-GT | 3~400 V, 50 Hz | 4 in (") | 3 | 0.25 kW | ≥0.7 | Rp 1¼ | 6091417 | |
Sub TWU 4.02-04-DM-D-GT | 3~400 V, 50 Hz | 4 in (") | 4 | 0.25 kW | ≥0.7 | Rp 1¼ | 6091416 | |
Sub TWU 4.02-04-DM-D-QC-GT | 3~400 V, 50 Hz | 4 in (") | 4 | 0.25 kW | ≥0.7 | Rp 1¼ | 6091415 | |
Sub TWU 4.04-04-DM-D-GT | 3~400 V, 50 Hz | 4 in (") | 4 | 0.25 kW | ≥0.7 | Rp 1¼ | 6091414 | |
Sub TWU 4.04-04-DM-D-QC-GT | 3~400 V, 50 Hz | 4 in (") | 4 | 0.25 kW | ≥0.7 | Rp 1¼ | 6091413 | |
Sub TWU 4.04-05-DM-D-GT | 3~400 V, 50 Hz | 4 in (") | 5 | 0.37 kW | ≥0.7 | Rp 1¼ | 6091412 | |
Sub TWU 4.04-05-DM-D-QC-GT | 3~400 V, 50 Hz | 4 in (") | 5 | 0.37 kW | ≥0.7 | Rp 1¼ | 6091411 |