Pump Calpeda B-NM 65/125A/B

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 1092-1, PN 16
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; NM 80/16; NM 100/20 ).
• Continuous duty.

Motor

• 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 303 AISI 430 from 3 kW to 22 kW	Cr Ni Mo steel AISI 316
Mechanical seal	Carbon-Ceramic-NBR
Counter-flanges	Steel Fe 4308 UNI 7070

Specifications

• Rated motor power output : 7.5 kW, 10 Hp
• Maximum suction lift 1-2 m.
• Kapasitas Pompa ( Q ) : Total Head ( H )
  37.8 M³ ( 400 l/min ) : 25.9 m
  42 M³ ( 450 l/min ) : 25.8 m
  48 M³ ( 500 l/min ) : 25.6 m
  54 M³ ( 550 l/min ) : 25.4 m
  60 M³ ( 630 l/min ) : 25.1 m
  66 M³ ( 650 l/min ) : 24.8  m
  75 M³ ( 700 l/Min ) : 24.1 m
  84 M³ ( 900 l/Min ) : 23.3 m
  96 M³ ( 1000 l/Min ) : 21.9 m
  108 M³ ( 1100 l/Min ) : 20 m
  120 M³ (1200 l/min ) : 17.6 m
• Weight : 80.5 kg