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Wilo-NR
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Submersible multiple stage well pump

  • For water supply, irrigation and watering, pressure boosting, dewatering and industrial applications
Special features/Product advantages
  • Corrosion-free stainless steel pump
  • Easy maintenance through fast installation and removal
  • High quality coupling
  • Built in check valve
  • Vertical or horizontal installation possible
Wilo-NR
Technical data

  • Power supply 1~115/230 V, 60 Hz / 3~208/230/460 and 575 V, 60 Hz
  • Fluid temperature: +40 °F to +90 °F (+3 °C to +30 °C)
  • Max. immersion depth 1,200' (350 m)
  • Max. sand content 80 g/m3
  • Starts per hour, max. 20
  • Available sizes 4", 6" and 8"
  • Connections: depending on model 1", 1 ¼", 1 ½", 2" and 3" NPT
Equipment
  • Fully submersible, multi-stage submersible pump
  • Pump and motor mounted, complete
  • Built in check valve
  • Nema coupling with Franklin motor
  • Single-phase alternating current version 1~115/230V, 60 Hz includesControl boxThermal motor protection
    • Control box
    • Thermal motor protection
Description/Design
  • Hydraulics:NEMA coupling and interconnector accepts any North American motorNon-return valve installed in pump headOver sized intermediate bearings in each stage, specially constructed to improve the shaft deflectionEasily replaceable wear rings and bearingsRobust cable protectionHydraulic components improved to achieve high levels of efficiencyHigh resistance to corrosion and abrasion achieved through the properties of the stainless steelEasy to service through simple installation and removal of the unit
    • NEMA coupling and interconnector accepts any North American motor
    • Non-return valve installed in pump head
    • Over sized intermediate bearings in each stage, specially constructed to improve the shaft deflection
    • Easily replaceable wear rings and bearings
    • Robust cable protection
    • Hydraulic components improved to achieve high levels of efficiency
    • High resistance to corrosion and abrasion achieved through the properties of the stainless steel
    • Easy to service through simple installation and removal of the unit
  • Motor (Franklin):Corrosion-free single-phase alternating current or three-phase motor with lacquer insulated windings in hermetically encapsulated stator for direct startingSealed encapsulated stator, resin impregnated, self-lubricating bearingThe motor is cooled by the temperature and flow speed of the fluid outside the motor
    • Corrosion-free single-phase alternating current or 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:Impellers stainless steel 1.4301 (AISI 304), stainless steel 1.4404 as option (AISI 316L)Stage housing stainless steel 1.4301 (AISI 304), stainless steel 1.4404 as option (AISI 316L)Stainless steel 1.4301 suction housing (AISI 304)Non-return valve stainless steel 1.4301 (AISI 304)Shaft stainless steel 1.4301 (AISI 304)
    • Impellers stainless steel 1.4301 (AISI 304), stainless steel 1.4404 as option (AISI 316L)
    • Stage housing stainless steel 1.4301 (AISI 304), stainless steel 1.4404 as option (AISI 316L)
    • Stainless steel 1.4301 suction housing (AISI 304)
    • Non-return valve stainless steel 1.4301 (AISI 304)
    • Shaft stainless steel 1.4301 (AISI 304)
  • Motor (Franklin):Shaft end stainless steel 1.4305 (AISI 303), stainless steel 1.4460 optional (AISI 329)
    • Shaft end stainless steel 1.4305 (AISI 303), stainless steel 1.4460 optional (AISI 329)
Scope of delivery
  • Pump and motor (optional pump end only)
  • Control box optional
  • Installation and operating instructions
Wilo-NR