Centrifugal, single-impeller, close-coupled electric pumps with direct motor-pump coupling and single shaft.

NR, NR4 Series: Single head electric pumps.

NRD Series: Double-headed electric pumps connected by an automatic changeover valve. The two pumps can operate individually or in parallel.

Pump body with suction and delivery ports with the same diameter and arranged on the same axis (“in-line” execution).

Ports: Flanges PN 10, EN 1092-2.

Counter flanges (on request)

Flanges size

NR, NR4 32,40,50,65: Threaded flanges PN 16, EN 1092-1

NR4 100, NR4 125: Flanges to be welded overlapping PN 10, EN 1092-1

Version with I-MAT inverter (on request)

Employments

- For clean liquids without abrasive parts, non aggressive to the pump materials (with solid parts up to 0.2% max).

- For heating, air conditioning, cooling and circulation systems.

- For civil and industrial applications.

- When low noise operation is required (n = 1450 1 / min).