POMPA CALPEDA NMD 20/140B/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 connected to the pump.
NM: single-impeller.
NMD: with two back-t0-back impellers ( with axial thrust balancing ).
Connections: threaded ports ISO 228/1 ( BS 2779 ).
NM,NMD: version with pump casing and lantern bracket in cast iron.
B-NM, B-NMD: version with pump casing and lantern bracket in bronze. ( the pumps are supplied fully painted ).
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.
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.
- Motor suitable for operation with frequency converter up to 0,75 kW.
Specifications
- Rated Motor Power Output : 1,1 kW, 1,5 HP
- Kapasitas Pompa ( Q ) = Total Head ( H )
1 m/h ( 16 l/min ) : 53 m
1,2 m/h ( 20 l/min ) : 52,5 m
1,5 m/h ( 25 l/min ) : 52 m
1,89 m/h ( 31,5 l/min ) : 51 m
2,4 m/h ( 40 l/min ) : 50 m
3 m/h ( 50 l/min ) : 48 m
3,6 m/h ( 60 l/min ) : 46 m
4,2 m/h ( 70 l/min ) : 43,5 m
4,8 m/h ( 80 l/min ) : 40 m - Weight : 22,7 kg
