Wilo-Sub TWU 4-…-GT
Multistage 4″ submersible pump in jacketed construction for vertical and horizontal installation, optimised for geothermal applications.
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Description
Multistage 4″ submersible pump in jacketed construction for vertical and horizontal installation, optimised for geothermal applications.
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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
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Technical Features
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.
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
Equipment/function
- Integrated non-return valve
- Discharge port according to NEMA
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.
Accessories
- Cooling shroud
- Diaphragm expansion tank
- Gate valve
- Float switch
- Pressure switch
- Electrode
- Switchgear
- Alarm switchgear
- Casting resin kit
- Connection cable
- Downloads
