CALPEDA PUMP NMD 20/140A/A

CALPEDA PUMP NMD 20/140A/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-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 fromb -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.

M0tor

• 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 suitables for operation with frequency converter up to0,75 kW.

Specifications

• Rated Motor Power Output : 1,5 kW, 2 HP
• Kapasitas Pompa ( Q ) = Total Head ( H )
  1 m³/h ( 16 l/min ) : 67 m
  1,2 m³/h ( 20 l/min ) : 66,5 m
  1,5 m³/h ( 25 l/min ) : 66 m
  1,89 m³/h ( 31,5 l/min ) : 64,5 m
  2,4 m³/h ( 40 l/min ) : 63 m
  3 m³/h ( 50 l/min ) : 61,5 m
  3,6 m³/h ( 60 l/min ) : 59 m
  4,2 m³/h ( 70 l/min ) : 57 m
  4,8 m³/h ( 80 l/min ) : 53,5 m
  5,4 m³/h ( 90 l/min ) : 50 m
  6 m³/h ( 100 l/min ) : 46 m