Hydraulic Submersible Borehole Pumps Booster Wilo-Sub TWU 4-QC

• 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. immersion depth: 200 m
• Protection class: IP68
• Discharge port: Rp 1¼ – Rp 2

• Hydraulics housing: 1.4301
• Impellers: Noryl
• Hydraulic shaft: 1.4104
• Motor housing: 1.4301
• Motor shaft: 1.4305

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

Single-phase or 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.

• Hydraulics + motor completely assembled
• 1.5 or 1.75 m Quick Connect cable
• Single-phase version including switchbox with capacitor, thermal motor protection and On/Off switch
• Installation and operating instructions

• Cooling shroud
• Diaphragm expansion tank
• Gate valve
• Float switch
• Pressure switch
• Electrode
• Switchgear
• Alarm switchgear
• Casting resin kit
• Connection cable