Centrifugal Pump Calpeda NM 17/G/A●


Construction

Close-coupled, centrifugal pumps; electric motor with extended shaft directly connected 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 )
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 ).

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 0C to +90 0C
  • Ambient temperature up to 40 0C
  • 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, 50 Hz N( n ≈ 2900 )
  • 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 230V ± 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 : 1,5 kW, 2 HP
  • Kapasitas Pompa ( Q ) : Total Head ( H )
    21 m3/h ( 350 l/min ) : 12 m
    24 m3/h ( 400 l/min ) : 11,7 m
    27 m3/h ( 450 l/min ) : 11,5 m
    30 m3/h ( 500 l/min ) : 11,2 m
    33 m3/h ( 550 l/min ) : 11 m
    37,8 m3/h ( 630 l/min ) : 10,3 m
    42 m3/h ( 700 l/min ) : 9,7 m
    48 m3/h ( 800 l/min ) : 8,5 m
    54 m3/h ( 900 l/min ) : 7* m
    60 m3/h ( 1000 l/min ) : 4* m

 

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