Calpeda Pump NM 32/20C/A

Close-coupled centrifugal pumps; electric motor with extended shaft directly connectedto the pump up to 22 kW, new bracket construction for standard motors ( stub-shaft construction ) from 30 to 75 kW with integrated thrust bearing

Pump casing with axial suction and radial delivery on top, main dimensions and performance according to EN 733.
NM(S): version with pump casing and lantern bracket in cast iron.
B-NM(S): version with pump casing and lantern bracket/casing cover in bronze.  ( the pumps are supplied fully painted ).
Connections: Flanges according to PN 10, EN 1092-2.
Counter-flanges ( on request ) : Flanges for welding EN 1092-1, PN 10.

Applications

For clean liquids without abrasives, which are non-aggressive for the pump materials ( solids content up to 0,2% ). For water supply.
For heating, air conditioning, cooling and circulation plants.
For civil and industrial applications.
For fire fighting applications.  For Irrigation.

Operating conditions

• Liquid temperature from –10 °C to +90 °C.
• Ambient temperature up to 40° C.
• Total suction lift up to 7 m
• Maximum permissible working pressure up to 10 bar ( 16 bar for NM 32L/16,20; NM 40/16,20; NM 50/12,16; NM 65/12,16,20,25; NM80/16; NM 100/20).
• Continuous duty.

Motor

• 2-pole induction motor, 50 Hz ( (n ≈ 2900 rpm ).
• NM, NMS: three-phase 230/400 V ±10% up to 3 kW
  400/690 V ±10% from 4 to 75 kW.
• Insulation class F.           Protection IP 54 ( IP 55 for NMS )
• 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.

Special features on request

• Other voltages. – Frequency 60 Hz ( as per 60 Hz data sheet ).
• Protection IP 55.  – Special mechanical seal.
• Packed gland ( only for NM standard construction ).
• Single-phase motor ( NMM ) up to 1,5 kW.
• Higher or lower liquid or ambient temperatures.
• Motor suitable for operation with frequency converter up to 0,75 kW.

Materials

Components	NM, NMS	B-NM, B-NMS
Pump casing Lantern bracket NM Casing cover for NMS	Cast iron GJL 200 EN 1561	Bronze G-Cu Sn 10 EN 1982
Lantern bracket NMS	Cast iron GJL 200 EN 1561
Impeller	Cast Iron GJL 200 EN 1561	Bronze G-Cu Sn 10 EN 1982
	Brass P-Cu Zn 40 Pb 2 UNI 5705 For 32/12, 32/16, 32/20, 32L/20, 40/20
Shaft	Cr-Ni steel AISI 303AISI 430 From 3 kW to 22 kW	Cr Ni Mo steel AISI 316
Mechanical seal	Carbon – Ceramic – NBR
Counter-Flanges	Steel Fe 430B UNI 7070

Specifications

• Rated motor power output : 2,2 kW, 3 HP
• Maximum suction lift 1-2 m
• Kapasitas Pompa ( Q ) : Total Head ( H )
  6,6 M³ ( 110 l/min ) : 45 m
  7,5 M³ ( 125 l/min ) : 44,5 m
  8,4 M³ ( 140 l/min ) : 44 m
  9,6 M³ ( 160 l/min ) : 43,5 m
  10,8 M³ ( 180 l/min ) : 42,5 m
  12 M³ ( 200 l/min ) : 41 m
  13.2 M³ ( 220 l/min ) : 40 m
  15 M³ ( 220 l/min ) : 38 m
  16,8 M³ ( 220 l/min ) : 36 m
• Weight : 47 kg