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Counter Current Nadorself

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Counter Current Nadorself


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.

Series features Nadorself:

Equipment

Check valve: No Draining plug: Sí Fittings: Roscar Support base: Incluido Electrical characteristics Electrical isolation: Clase F Motor speed operation: Velocidad constante Motor type: Asíncrono Protection rating: IP55 Reset: Automático Service factor: S1 Service type: Continuo  Manufacturing characteristics Discharge connection type: Rosca Discharge diameter: 2 1/2" G Impeller type: Cerrado Motor cooling: Ventilador Stages: Bomba centrífuga monoetapa Suction connection type: Rosca Suction diameter: 2 1/2" G Suction type: Autoaspirante Tightness by: Cierre mecánico Materials Diffuser: PP + 30% GF Discharge body: PP + 30% GF Gaskets: NBR Impeller/s: PPO + 30% GF Mechanical seal: Alúmina-Grafito Mechanical seal bracket: PP + 30% GF Motor casing: Aluminio Motor shaft: Acero inoxidable AISI 420 Nuts and bolts: Acero inoxidable AISI 304 Outer pump body: PP + 30% GF Pump shaft: Acero inoxidable AISI 420 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): 0,5 Maximum suction (m): 4 Maximum working pressure (bar): 4

 

Series features Nadorself:

Equipment

Check valve:  No

Draining plug:  Sí Fittings:

Roscar Support base:  Incluido

 

Electrical characteristics

Electrical isolation: Clase F

Motor speed operation: Velocidad constante

Motor type: Asíncrono

Protection rating: IP55

Reset: Automático

Service factor: S1

Service type: Continuo

 

Manufacturing characteristics

Discharge connection type: Rosca

Discharge diameter: 2 1/2" G

Impeller type: Cerrado

Motor cooling: Ventilador

Stages: Bomba centrífuga monoetapa

Suction connection type: Rosca

Suction diameter: 2 1/2" G

Suction type: Autoaspirante

Tightness by: Cierre mecánico

Materials

Diffuser: PP + 30% GF

Discharge body: PP + 30% GF

Gaskets: NBR

Impeller/s: PPO + 30% GF

Mechanical seal: Alúmina-Grafito

Mechanical seal bracket: PP + 30% GF

Motor casing: Aluminio

Motor shaft: Acero inoxidable AISI 420

Nuts and bolts: Acero inoxidable AISI 304

Outer pump body: PP + 30% GF

Pump shaft: Acero inoxidable AISI 420

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): 0,5

Maximum suction (m): 4

Maximum working pressure (bar): 4

 




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