Pump Calpeda B-NMS 65/250B/A

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 ) : 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.  – Freqency 60 Hz ( as per 60 Hz data sheet ).
• Protection IP 55.  – Special mechanical seal.
• Packed gland ( only for NM standard constrution ).
• 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 : 30 kW, 40 Hp
• Kapasitas Pompa ( Q ) : Total Head ( H )
  48 M³ ( 800 l/min ) : 73.5m
  54 M³ ( 900 l/min ) : 73.5 m
  60 M³ ( 1000 l/min ) : 73.5 m
  66 M³ ( 1100 l/min ) : 73.5 m
  75 M³ ( 1250 l/Min ) : 73 m
  84 M³ ( 1400 l/Min ) :  71.5 m
  96 M³ ( 1600 l/Min ) : 69.5 m
  108 M³ ( 1800 l/Min ) : 66.5 m
  120 M³ (2000 l/min ) : 63 m
  132 M³ ( 2200 l/min ) : 59 m
• Weight : 353 kg