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 jacketed construction for vertical and horizontal installation, optimised for geothermal applications
Application
For pumping thermal water from boreholes or springs for water supply in geothermal applications.
Equipment/function
- Integrated non-return valve
- Discharge port according to NEMA
Typekey
Example: | Wilo-Sub TWU 4.02-03-DM-D-QC-GT |
TWU | Series |
4 | Diameter of the hydraulic unit in inches ["] |
02 | Rated volume flow [m3/h] |
03 | Number of hydraulic stages |
D | Series generation |
QC | Version with Quick Connect cable |
GT | Optimised 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. immersion depth: 200 m
- Protection class: IP68
- Discharge port: Rp 1¼
Materials
- Hydraulics housing: 1.4301
- Impellers: Noryl
- Hydraulic shaft: 1.4104
- Motor housing: 1.4301
- Motor shaft: 1.4305
Construction
Submersible pump for vertical or horizontal installation.
Hydraulics
Multistage submersible pump with radial or semi-axial impellers in sectional construction and integrated non-return valve. Discharge port with threaded flange and female thread. All parts that come in contact with the fluid are made of corrosion-free materials.
Motor
Three-phase current motor for direct starting. Sealed motor with lacquer-insulated, resin-covered winding, water-glycol filling and self-lubricating motor bearings.
Cooling
- The motor is cooled by the pumped fluid. Always operate the pump in a submerged state.
- Vertical installation is possible with or without cooling jacket.
- Horizontal installation must be performed in conjunction with a cooling jacket.
Scope of delivery
- Hydraulics + motor completely assembled
- TWU 4 ... QC-GT: 1.5 m Quick Connect cable
- TWU 4 ... -GT: 15 m connection cable
- Installation and operating instructions
Accessories
- Cooling shroud
- Diaphragm expansion tank
- Gate valve
- Float switch
- Pressure switch
- Electrode
- Switchgear
- Alarm switchgear
- Casting resin kit
- Connection cable
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 (327 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 |