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Calpeda NR4 EI 50

Construction

Close-coupled, single-impeller, centrifugal pumps; electric motor with extended shaft directly connected to the pump. NR, NR4: Single head pump. NRD: Twin head pump with bulit-in automatic switching valve. The two head can operate singularly or in parallel. Pump casing with suction and delivery connections with the same diameter and on the same axis (in-line).

Connections : Flanges PN 10, EN 1092-2.

Counterflanges (on request): NR,NR4 32,40,50,65 : Screwed flanges PN 16, EN 1092-1. NR4 100, NR4 125 : Flanges for welding PN 10, EN 1092-1. Version with frequency converter (on request)

Applications

For clean liquids, without abrasives, which are non-aggressive for the pump materials (contents of solids up to 0.2%).
For heating, conditioning, cooling and circulation plants.
For civil and industrial applications.
When low noise operation is required (n = 1450 rpm).

Additional Models

Model	SKU
NR4 EI 50/160A/B 230/400/50 DRW. 90.459 DIFFERENTIAL TRANSDUCER	I70MB0702001
NR4 EI 50B/A 230/400/50 HZ DRW 90.459 DIFFERENTIAL TRANSDUCER	I70M10040001
NR4 EI 50A/A 230/400/50 HZ DIS. 90.459 DIFFERENTIAL TRANSDUCER	I70M10060001
NR4 EI 50/250C/B 230/400/50 HZ DIS. 90.459 DIFFERENTIAL TRANSDUCER	I70MB0902001
NR4 EI 50/250B/B 230/400/50 HZ DRW 90.459 DIFFERENTIAL TRANSDUCER	I70MB0942001
NR4 EI 50/250A/A 230/400/50 HZ DRAWING 90.459 DIFFERENTIAL TRANSDUCER	I70MB0981001
NR4 EI 50/200B/B 230/400/50 HZ DRW 90.459 DIFFERENTIAL TRANSDUCER	I70MB0792001
NR4 EI 50/200A/B 230/400/50 HZ DIS. 90.459 DIFFERENTIAL TRANSDUCER	I70MB0862001
NR4 EI 50/160C 230/400/50 HZ DRW 90.459 DIFFERENTIAL TRANSDUCER	I70MB0620001
NR4 EI 50/160B 230/400/50 HZ DIS. 90.459 DIFFERENTIAL TRANSDUCER	I70MB0660001
NR4 EI 50C/A 230/400/50 HZ DIS. 90.459 DIFFERENTIAL TRANSDUCER	I70M10020001