Wilo-Sub TWU 3 HS
Your advantages
- Constant, adjustable pressure thanks to external frequency converter with integrated control (TWU 3 HS-ECP)
- Easy installation with no additional sensors provided by the customer for pressure control (TWU 3 HS-ECP)
- High output thanks to integrated frequency converters with fixed motor speed of 8,400 rpm (TWU 3 HS-I)
- Reduction of well bore expansion and installation costs due to narrower diameter and installation volume
- Comprehensive monitoring and protection functions for absolute operational reliability
Recommended services
Design
Multistage, frequency controlled 3" submersible pump in shroud design for vertical or horizontal installation
Application
For pumping rainwater and industrial water from boreholes and wells for irrigation, sprinkling and water supply.
Equipment/function
TWU 3-...-HS-I
- Integrated non-return valve
- Integrated frequency converter with the following functions
- Soft starter
- Undervoltage, overvoltage and short-circuit protection
- Thermal overload protection of the motor and the frequency converter
- Dry run protection
TWU 3-...-HS-ECP-B
- Integrated non-return valve
- External frequency converter with the following functions
- Soft starter
- Undervoltage, overvoltage and short-circuit protection
- Thermal overload protection of the motor and the frequency converter
- Dry-running protection with automatic reset
- Constant pressure function
- Leakage monitoring to avoid frequent switching (cycling)
- Change of direction of rotation
- Setting for max. flow and set pressure
- Pressure is shown on the display
- Settings, operating statuses and error messages are shown by LEDs and on the display.
Constant pressure function
The frequency inverter controls the speed of the pump according to the set target pressure. As a result, the submersible motor pump always delivers a constant pressure.
Typekey
e.g. | Wilo-Sub TWU 3-0305-HS-E-CP-B |
TWU | Series |
3 | Diameter of the hydraulic unit in inches ["] |
03 | Nominal volume flow [m3/h] |
05 | Number of hydraulic stages |
HS | High-speed version |
E | Frequency converter version
|
CP | Constant pressure control |
B | Version with permanent magnet motor |
Technical data
Submersible pump:
- Supply voltage:HS-E…: 1~230 V, 50/60 Hz (connection to the AC mains supply by a frequency converter )HS-I…: 1~230 V, 50/60 Hz (direct connection to the AC mains supply)
- Submerged operating mode: S1
- Fluid temperature: 3 – 35 °C
- Minimum flow rate at motor: 0.08 m/s
- Max. sand content: 50 g/m3
- Max. number of starts: 30/h
- Max. immersion depth: 150 m
- Protection class: IP58
- Pressure connection: Rp 1/Rp !¼
Frequency converter for version “HS-E…”:
- Mains connection: 1~230 V, 50/60 Hz
- Output: 3~230 V/max. 140 Hz/max. 2.2 kW
- Fluid temperature: 3 – 50 °C
- Max. pressure: 8 bar
- Protection class: IPX5
- Connection: G 1¼
Materials
- Hydraulic housing: 1.4301
- Impellers: Polycarbonate
- Hydraulics shaft: 1.4104
- Motor housing: 1.4301
- Motor shaft: 1.4305
Construction
Submersible motor pump for vertical or horizontal installation.
Hydraulics
Multistage submersible motor pump with radial impellers in sectional design and ntegrated 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 (...HS-E...-B)
Corrosion-free permanent magnet motor for connection to the frequency inverter supplied. Oil-filled motor with self-lubricating bearings, designed for high speeds of up to 8400 rpm.
The frequency inverter is installed directly in the discharge line outside the pumped fluid (flood-proof). Cooling is provided by the pumped medium.
Motor (...HS-I)
Corrosion-free asynchronous motor with integrated frequency converter for direct connection to the mains. Rewindable, oil-filled motor with self-lubricating bearings, designed for high speeds of 8400 rpm.
Cooling
- The motor is cooled by the pumped fluid. Operate the motor always immersed.
- 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 ready assembled
- Frequency converter (...HS-ECP)
- 1.75 m connecting cable
- Installation and operating instructions
Accessories
- Cooling jacket
- Diaphragm pressure vessel
- Gate valve
- Float switch
- Pressure switch
- Electrode
- Switchgear
- Alarm switchgear
- Casting resin kit
- Connection cable
Installation and operating instructions
Wilo-Sub TWU 3-...-HS (High Speed)
| Article Number | 6063546 |
| Edition | 2019-05 |
| Number of pages | 192 |
| Language | de, el, en, fr, it, nl, pl, sl |
PDF (7 MB)Group Statement
Group Statement REACH
| Edition | 2021-05 |
| Number of pages | 5 |
| Language | language neutral |
PDF (279 KB)Certificate
Wilo-Sub TWU 3
| Article Number | 6080452 |
| Edition | 1608 |
| Number of pages | 11 |
| Language | language neutral |
PDF (502 KB)