Compact, self-priming electric pumps for decanting large flows, specially designed for units for swimming against current.



Compact, self-priming electric pumps for decanting large flows, specially designed for units for swimming against current in private, communal and public swimming pools, balneotherapy or thalassotherapy centres or private or public gymnasiums and spas.

These units can transform a swimming pool into a space adapted for leisure, sport and health, particularly in small swimming pools.

This self-priming capacity of this model is  achieved using a front suction check valve and allows very flexible installation, which can be carried out in technical boxes without the need for works in the area next to the swimming pool basin. Because it is made from plastic materials, it is highly resistant to corrosion from swimming-pool water, whatever the disinfection system used.

It includes an original, practical, curved 2 1/2″ threaded delivery which can be adapted to three positions and a 2 1/2″ flanged, threaded connector for the axial suction. The single-phase models include thermal protection for the motor.

It should be installed with an NCR or NCC front cover unit for the swimming pool, which includes an outlet jet, a suction area and connections for pneumatic activation of the pump. This can be complemented with an electrical control panel and an MNC hydromassage hose with nozzle connection.



  • Check valve: No
  • Draining plug: Yes
  • Fittings: Screw
  • Support base: Included

Manufacturing characteristics

  • Discharge connection type: Nut
  • Discharge diameter: 2 1/2″ G
  • Impeller type: Closed
  • Motor cooling: Fan
  • Stages: Single stage centrifugal pump
  • Suction connection type: Nut
  • Suction diameter: Nut
  • Suction type: Self-priming
  • Tightness by: Double Mechanical Seal

Usage limits

  • Liquid temperature (ºC): Min: 4 – Max: 35
  • Maximum no. of motor start-ups (start-ups/minute): 0.5
  • Maximum submersion (m): 4

Electrical characteristics

  • Electrical isolation: F Class
  • Motor speed operation: Constant speed
  • Motor type: Asynchronous
  • Protection rating: IPX5
  • Reset: Automatic
  • Service factor: S1
  • Service type: Continuous


  • Diffuser: PPO + 30% GF
  • Discharge body: PPO + 30% GF
  • Gaskets: NBR
  • Impeller/s: PPO + 30% GF
  • Mechanical seal: Aluminium-Graphite
  • Mechanical seal bracket: PPO + 30% GF
  • Motor casing: Aluminium
  • Motor shaft: Stainless steel AISI 431
  • Nuts and bolts: Stainless steel AISI 304
  • Outer pump body: PPO + 30% GF
  • Pump shaft: AISI 431
  • Suction body: PPO + 30% GF
  • Support base material: PPO + 30% GF




Nadorself Instruction Manual

PDF · 1.39 MB

Nadorself Data Sheet

PDF · 404.64 KB


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