CALPEDA PUMP NM 20/140B/A

CALPEDA PUMP NM 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.

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 ).

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

• Rated Motor Power Output : 1,1 kw, 1,5 HP
• Kapasitas Pompa ( Q ) : Total Head ( H )
  1 m³/h ( 16 l/min ) : 53 m
  1,2 m³/h ( 20 l/m ) : 52,5 m
  1,5 m³/h ( 25 l/m ) : 52 m
  1,89 m³/h ( 31,5 l/m ) : 51 m
  2,4 m³/h  ( 40 l/m ) : 50 m
  3 m³/h ( 50 l/m ) : 48 m
  3,6 m³/h ( 60 l/m ) : 46 m
  4,2 m³/h ( 70 l/min ) : 43,5 m
  4,8 m³/h ( 80 l/min ) : 40 m