Wilo-Sub TWU 4
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
Recommended services
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 |
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
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.
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
Options
- Motor versions for special voltages 3~230 V, 50 Hz; 3~500 V, 50 Hz; 1~230 V, 60 Hz; 3~230 V, 60 Hz; 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 |
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)Certification booklet
Wilo-Sub TWU 4
| Article Number | 6080453 |
| Edition | 1701 |
| Number of pages | 8 |
PDF (510 KB)Wilo-EMU
| Article Number | 6080454 |
| Edition | 1702 |
| Number of pages | 8 |
PDF (417 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)