CALPEDA NM 32L/20B

Construction

Close-coupled centrifugal pumps, electric motor with extended shaft directly connected to 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 ): Screwed flanges EN 1092-1, PN 16

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 : 5.5 kW, 7.5 HP
• Maximum suction lift 1-2 m
• Kapasitas Pompa ( Q ) : Total Head ( H )
  9,6 M³ ( 160 l/min ) : 51.7 m
  10,8 M³ ( 180 l/min ) : 51.6 m
  12 M³ ( 200 l/min ) : 51.4 m
  13.2 M³ ( 220 l/min ) : 51.2 m
  15 M³ ( 250 l/min ) : 50.7 m
  16,8 M³ ( 280 l/min ) : 50 m
  18,9 M³ ( 315 l/min ) : 48.8 m
  21 M³ ( 350 l/min ) : 47 m
  24 M³ ( 400 l/min ) : 43.2 m
  27 M³ ( 450 l/min ) : 37.8 m
  29 M³ ( 483 l/min ) : 33.5 m
• Weight : 49.5 kg