Wilo-Sub TWU 3 Plug & Pump

Your advantages

• Easy installation due to preinstalled and pre-wired components
• Parts that come in contact with the fluid are corrosion-free
• Integrated non-return valve

Construction

Water-supply unit with submersible pump, control and complete accessories

Application

Water-supply unit for

• Water supply from boreholes, wells and rainwater storage tanks
• Domestic water supply, sprinkling and irrigation
• Pumping of water without long-fibre and abrasive constituents

Equipment/function

• Multistage submersible pump with radial impellers
• Integrated non-return valve
• NEMA coupling
• Single-phase current motor
• Thermal motor protection

Scope of delivery

Wilo Plug & Pump Sub-I package for garden irrigation of private greenery in the domestic sector:

• Fully mounted
• 30 m connection cable with drinking water approval (cross-section: 4 x 1.5 mm²)
• Switchbox with capacitor, thermal motor protection and On/Off switch
• Wilo-HiControl 1 (FC); automatic flow monitor and pressure controller with integrated dry-running protection
• 30 m guy cable
• Installation and operating instructions

Wilo Plug & Pump Sub-II package for domestic water supply in single-family and multi-family houses:

• Fully mounted
• 30 m connection cable with drinking water approval (cross-section: 4 x 1.5 mm²)
• Switchbox with capacitor, thermal motor protection and On/Off switch
• Wilo pressure switching 0 – 10 bar, including 18 l diaphragm expansion tank, manometer, shut-off device and pressure switch
• 30 m guy cable
• Installation and operating instructions

Type key

Technical data

• Mains connection: 1~230 V, 50 Hz
• 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: 27 m
• Protection class: IP58
• Pressure connection: Rp 1

Materials

• Hydraulics housing: Stainless steel 1.4301
• Impellers: Polycarbonate
• Hydraulic shaft: Stainless steel 1.4104
• Motor housing: Stainless steel 1.4301
• Motor shaft: Stainless steel 1.4305

Description/construction

Submersible pump for vertical or horizontal installation.

Hydraulics

Multistage submersible pump with radial impellers in sectional design. Integrated non-return valve. All parts that come in contact with the fluid are made of corrosion-free materials.

Motor

Corrosion-free single-phase motor for direct starting, rewindable, oil-filled, self-lubricating bearings.

Cooling

The motor is cooled by the pumped fluid. The motor must always be immersed when operated. The limit values for maximum fluid temperature and minimum flow velocity must be adhered to. Vertical installation is possible with or without cooling jacket. Horizontal installation must be performed in conjunction with a cooling jacket.