ESPA 55 - Since 1962
Search for product
  f

Products in alphabetical order

Water circulation

Swimming pool pumps > Nadorself

Nadorself

Nadorself
Click on the photo to enlarge it

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 – achieved using a front suction check valve – 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.

 
Nadorself Click on the image to download the pdf of the spare parts

Frequency and units

Flow:

Pressure:

Power:

NPSH:

 

 

Operating curves
 

Click on the product name to see each model’s specific features
Series features Nadorself:
  • Equipment
  • Check valve: No
  • Draining plug: Yes
  • Fittings: Screw
  • Support base: Included
  • Electrical characteristics
  • Electrical isolation: F Class
  • Motor speed operation: Constantly speed
  • Motor type: Asynchronous
  • Protection rating: IP55
  • Reset: Automatic
  • Service factor: S1
  • Service type: Continuous
  • 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: 2 1/2" G
  • Suction type: Selfprimming
  • Tightness by: Mechanical Seal
  • Materials
  • Diffuser: PP + 30% GF
  • Discharge body: PP + 30% GF
  • Gaskets: NBR
  • Impeller/s: PPO + 30% GF
  • Mechanical seal: Aluminium-Graphite
  • Mechanical seal bracket: PP + 30% GF
  • Motor casing: Aluminium
  • Motor shaft: Acero inoxidable AISI 431
  • Nuts and bolts: Stainless steel AISI 304
  • Outer pump body: PP + 30% GF
  • Pump shaft: AISI 431
  • Suction body: PP + 30% GF
  • Support base material: PP + 30% GF
  • Usage limits
  • Liquid temperature (ºC): Min: 4 - Max: 35
  • Maximum no. of motor start-ups (start-ups/minute): 0,50
  • Maximum suction (m): 4
  • Maximum working pressure (bar): 4
Name Language Format Size Download Favourite
Technical appendix Spanish .pdf 1.48 Mb f
Nadorself dimensions .pdf 1.21 Mb f
Safety recommendations for surface pumps .pdf 523.54 Kb f
Product portfolio .pdf 2.22 Mb f
Nadorself spare parts .pdf 54.42 Kb f
ESPA Pool catalogue .pdf 2.27 Mb f

News

more news
 
 
 

© 2017 ESPA Oficinas Centrales / ESPA Headquarters

Ctra de Mieres, s/n GPS: N42° 06' 37'' / E02° 45' 03'' 17820 Banyoles Spain Tel.+34 972 588 000 info@espa.com