Pump Calpeda NM 25/20A/B

Pump Calpeda NM 25/20A/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 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.

Special features on request

• Other voltages. – Frequency 60 Hz ( as per 60 Hz data sheet ).
• Protection IP 55. – Special mecanical 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 : 3 kW, 4 HP
• Kapasitas Pompa ( Q ) : Total head ( H )
  3 m/h ( 50 l/min ) : 49,9 m
  3,6 m/h ( 60 l/min ) : 49,8 m
  4,8 m/h ( 80 l/min ) : 49,4 m
  6 m/h ( 100 l/min ) : 48,9 m
  6,6 m/h ( 110 l/min ) : 48,5 m
  7,5 m/h ( 125 l/min ) : 48,1 m
  8,4 m/h ( 140 l/min ) : 47,5 m
  9,6 m/h ( 160 l/min ) : 46,6 m
  10,8 m/h ( 180 l/min ) : 45,6 m
  12 m/h ( 200 l/min ) : 44,4 m
  13,2 m/h ( 220 l/min ) : 43 m
  15 m/h ( 250 l/min ) : 40,8 m
  16,8 m/h ( 280 l/min ) : 37,9 m
• Weight : 40,9 kg