Calpeda NM 25/20B/C Single Stage End Suction Pump

Calpeda NM 25/20B/C Single Stage End Suction Pump

Calpeda NM Threaded Close-coupled, centrifugal pumps; electric motor with extended shaft directly connected to the pump.

NM: single-impeller

Connections: threaded ports ISO 228/1 (BS 2779).

NM, NMD: version with pump casing and lanter bracket in cast iron.

Applications

• For clean liquids without abrasives, which are non-aggressive for the pump materials ( solids content up to 0.2%).
• For water supply.
• For heating, air-conditioning, cooling and circulation plants.
• For civil and industrial applications.
• For fire fighting applications.
• For irrigation.

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
• (16 bar for pumps NMD 25/190; NMD 32/210; NMD 40/180).
• Continuous duty.

Motor

• 2-pole induction motor, 50 Hz (n = 2900 rpm).
• NM, NMD: three-phase 230/400 V ± 10% up to 3 kW;
• 400/690 V ± 10% from 4 to 9,2 kW;
• Insulation class F. Protection IP 54.
• Classification scheme IE2 for three-phase motors from 0,75 kW.
• Constructed in accordance with EN 60034-1; EN 60034-30.
• EN 60335-1, EN 60335-2-41.

Special features on request

• Other voltages.
• Frequency 60 Hz (as per 60 Hz data sheet).
• Protection IP!55. - Special mechanical seal
• Higher or lower liquid or ambient temperatures.