POMPA CALPEDA B NMD 20/110B/A use for :
- Clean liquids without abrasives, which are non-aggressive for the pump materials ( solids content up to 0.2% ).
- Water supply.
- Heating, air-conditioning, cooling and circulation plants.
- Civil and industrial applications.
- Fire fighting applications. For Irrigation.
Construction
Close-coupled, centrifugal pumps; electric motor with extended shaft directly to the pump.
NM: single-impeller
NMD: with two back-to back impellers ( with axial thrust balancing )
Connections: threaded ports ISO 228/1 ( BS 2779 ).
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; - NMM, NMDM: single-phase 230 V ± 10%, with thermal protector
- Insulation class F. Protection IP 54.
- Motor suitable for operation with frequency converter from 1,1 kW
- Classification scheme IE3 for three-phase motors from 0,75 kW.
- Constructed in accordance with EN 60034-1; EN 60034-30-1.
EN 60335-1, EN 60335-2-41
