Calpeda NM 20/110A/B

Calpeda NM 20/110A/B 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-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 bronze. ( the pumps are supplied fully painted )

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 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 ; 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 : 0,75 kW, 1 HP
• Kapasitas Pompa ( Q ) : Total Head ( H )
  1 m³/h  ( 16 l/min ) : 43 m
  1,2 m³/h ( 20 l/min ) : 42 m
  1,5 m³/h ( 25 l/min ) : 40,5 m
  1,89 m³/h ( 31,5 l/min ) : 39 m
  2,4 m³/h ( 40 l/min ) : 36,5 m
  3 m³/h ( 50 l/min ) : 33 m
  3,6 m³/h ( 60 l/min ) : 29 m
  4,2 m³/h ( 70 l/min ) : 25 m