Construction
Close-coupled, single-impeller, centrifugal pumps; electric motor with extended shaft directly connected to the pump.
Pump casing with suction and delivery connections with the same diameter and on the same axis (in-line).
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).
Operating conditions
Liquid temperature from -10 °C to +90 °C.
Ambient temperature up to 40 °C.
Total suction lift up to 7 m.
Maximum permissible working pressure up to 10 bar.
Continuous duty.
Motor
4-pole induction motor, 50 Hz (n = 1450 rpm)
Materials
Pump casing Lantern bracket Cast iron GJL 200 EN 1561
Impeller Cast iron GJL 200 EN 1561 (Brass P-Cu Zn Pb 2 EN 1982 for NR-NR4 50, NR-NR4 50/200)
Shaft
- Chrome-nickel steel AISI 303 for pumps up to 1.1 kW
- Chrome steel AISI 430 for pumps from 1.5 to 4 kW
Mecanical seal Carbon - Ceramic - NBR
Counterflanges Steel Fe 42 UNI 7070
Special features on request
- Other voltages. - Protection IP 55.
- Special mechanical seal. - Higher or lower liquid or ambient temperatures.