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Wilo-Sub TWU 8

Submersible motor pump

  • For water supply, irrigation and watering, pressure boosting, reducing the groundwater level and industrial applications
  • For pumping water without long fibre and abrasive particles from boreholes with a minimum diameter of 6, 8 or 10" (DN 150, 200 or 300) and also an immersion depth depending on type of 220 to 350 m
Special features/Product advantages
  • Water can be pumped from considerable depths
  • Vertical or horizontal installation possible
  • Bronze impellers
  • Integrated non-return device
Wilo-Sub TWU 8
Technical data

  • Mains connection 3~400 V, 50 Hz
  • Fluid temperature +3 to + 30 C
  • Immersion depth depending on type max. 220 to 350 m
  • Sand content max. 50 g/m
  • Water speed min. 16 cm/s
  • Starts per hour, max. 20
  • Protection class IP 68
  • Connections: Pressure pipe depending on type Rp 2, R 2 1/2, R 3, Rp 3, R 4, R 5, R 6
Equipment
  • Fully submersible, multi-stage submersible pump
  • Hydraulics with motor mounted, complete
  • Integrated non-return device
  • Nema coupling
  • Three-phase motor
  • Cable length depending on type 2,4, 4 or 8 m
  • Cable cross-section depending on type 4 x 1.5 to 4 x 8.4 mm²
Description/Design
  • Hydraulics:
    • multi-stage submersible pump with radial impellers or semi-axial impellers in bronze
    • Stage housing in cast iron, also in bronze as option
    • Vertical or horizontal installation possible
    • Non-return valve installed in pump head
  • Motor:
    • Corrosion-free three-phase motor with lacquer-insulated windings in hermetically encapsulated stator for direct starting
    • Sealed encapsulated stator, resin impregnated, self-lubricating bearing
    • The motor is cooled by the temperature and flow speed of the fluid outside the motor
Materials
  • Hydraulics:
    • Bronze impellers
    • Cast iron stage housing EN-GJL-200), TWU 6 plastic, bronze as option
    • Stainless steel 1.4301 suction housing (AISI 304)
    • Cast iron non-return value (EN-GJL-200), TWU 6 stainless steel 1.4301 (AISI 304)
    • Shaft steel X46Cr13
    • Pump housing steel X20Cr13 (for TWU 6)
  • Motor:
    • Motor housing stainless steel 1.4301 (AISI 304), stainless steel 1.4571 as option (AISI 316 Ti)
    • Stainless steel shaft end 1.4305 (AISI 303), stainless steel 1.4460 as option (AISI 329)
Scope of delivery
  • Pump ready for connection
  • Installation and operating instructions
Wilo-Sub TWU 8
Dynamic name Name 1-phase / 3-phase Speed Rated power 
TWU 8-8015 Rp 4 3~ 400 V 2850 1/min 93 kW 
TWU 8-8012 Rp 4 3~ 400 V 2850 1/min 75 kW 
TWU 8-8010 Rp 4 3~ 400 V 2850 1/min 55 kW 
TWU 8-8008 Rp 4 3~ 400 V 2850 1/min 45 kW 
TWU 8-8006 Rp 4 3~ 400 V 2850 1/min 30 kW 
TWU 8-8004 Rp 4 3~ 400 V 2850 1/min 22 kW 
TWU 8-8003 Rp 4 3~ 400 V 2850 1/min 15 kW 
TWU 8-8002 Rp 4 3~ 400 V 2850 1/min 11 kW 
TWU 8-8001 Rp 4 3~ 400 V 2850 1/min 5,5 kW 
TWU 8-4219 Rp 3 3~ 400 V 2850 1/min 75 kW 
TWU 8-4214 Rp 3 3~ 400 V 2850 1/min 55 kW 
TWU 8-4212 Rp 3 3~ 400 V 2850 1/min 45 kW 
TWU 8-4210 Rp 3 3~ 400 V 2850 1/min 37 kW 
TWU 8-4208 Rp 3 3~ 400 V 2850 1/min 30 kW 
TWU 8-4206 Rp 3 3~ 400 V 2850 1/min 22 kW 
TWU 8-4205 Rp 3 3~ 400 V 2850 1/min 18,5 kW 
TWU 8-4204 Rp 3 3~ 400 V 2850 1/min 15 kW 
TWU 8-4203 Rp 3 3~ 400 V 2850 1/min 11 kW 
TWU 8-4202 Rp 3 3~ 400 V 2850 1/min 7,5 kW 
TWU 8-10010 Rp 5 3~ 400 V 2850 1/min 93 kW 
TWU 8-10008 Rp 5 3~ 400 V 2850 1/min 75 kW 
TWU 8-10007 Rp 5 3~ 400 V 2850 1/min 55 kW 
TWU 8-10005 Rp 5 3~ 400 V 2850 1/min 45 kW 
TWU 8-10004 Rp 5 3~ 400 V 2850 1/min 30 kW 
TWU 8-10003 Rp 5 3~ 400 V 2850 1/min 30 kW 
TWU 8-10002 Rp 5 3~ 400 V 2850 1/min 18,5 kW 
TWU 8-10001 Rp 5 3~ 400 V 2850 1/min 9,3 kW