CALPEDA PUMP NM 12/A/B

CALPEDA PUMP NM 12/A/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 pump; 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 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; 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

• Motor Rated Power Output : 4 kW, 5,5 HP
• Kapasitas Pompa ( Q ) : Total Head ( H )
  6,6 m³/h ( 110 l/min ) : 57,5 m
  7,5 m³/h ( 125 l/min ) : 57 m
  8,4 m³/h ( 140 l/min ) : 56 m
  9,6 m³/h ( 160 l/min ) : 55,5 m
  10,8 m³/h ( 180 l/min ) : 55 m
  12 m³/h ( 200 l/min ) : 54,5 m
  13,2 m³/h ( 220 l/min ) : 53,5 m
  15 m³/h ( 250 l/min ) : 51,5 m
  16,8 m³/h ( 280 l/min ) : 49 m