Wilo-Sub TWU 3

Multistage 3" submersible pump in shroud design for vertical or horizontal installation

• For domestic water supply from boreholes, wells and rainwater storage tanks
• For domestic water supply, sprinkling and irrigation
• For pumping water without long-fibre and abrasive constituents

• Multistage submersible-motor pump with radial impellers
• Integrated non-return valve
• NEMA coupling
• Single-phase or three-phase AC motor
• Integrated thermal motor protection for single-phase motor

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Immersed 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: IP 58
• Pressure connection: Rp 1

• Hydraulic housing: 1.4301 stainless steel
• Impellers: polycarbonate
• Hydraulics shaft: 1.4104 stainless steel
• Motor housing: 1.4301 stainless steel
• Motor shaft: 1.4305 stainless steel

Submersible-motor pump for vertical or horizontal installation.

Hydraulics

Multistage submersible-motor pump with radial impellers with 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, with rewindable motor, oil-filled, self-lubricating bearing.

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.

• Hydraulics + motor fully assembled
• 1.8 m connecting 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

• Motor versions for special voltages 3~230 V, 50 Hz; 1~230 V, 60 Hz; 3~380 V, 60 Hz

• Cooling jacket pipes
• Diaphragm pressure vessel
• Cable kits for potable and process water
• Float switch
• Switchgears
• Connection and installation material

• Mains connection: 1~230 V, 50 Hz or 3~400 V, 50 Hz
• Immersed 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: IP 58
• Pressure connection: Rp 1

• Hydraulic housing: 1.4301 stainless steel
• Impellers: polycarbonate
• Hydraulics shaft: 1.4104 stainless steel
• Motor housing: 1.4301 stainless steel
• Motor shaft: 1.4305 stainless steel

Submersible-motor pump for vertical or horizontal installation.

Hydraulics

Multistage submersible-motor pump with radial impellers with 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, with rewindable motor, oil-filled, self-lubricating bearing.

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.

• Hydraulics + motor fully assembled
• 1.8 m connecting 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

• Motor versions for special voltages 3~230 V, 50 Hz; 1~230 V, 60 Hz; 3~380 V, 60 Hz

• Cooling jacket pipes
• Diaphragm pressure vessel
• Cable kits for potable and process water
• Float switch
• Switchgears
• Connection and installation material