Close Coupled Centrifugal Pump CALPEDA B-NMS 100/250B/A


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 bronzer. ( 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 temperture up to 40° C.
  • Total suction lift up to 7 m.
  • Maximum permissible working pressure up to 10 bar ( 16 bar for NM 2L/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 : 55 kW, 75 Hp
  • Kapasitas Pompa ( Q ) : Total Head ( H )
    108 M3 ( 1800 l/Min ) : 73.5 m
    120 M3 (2000 l/min ) : 73 m
    132 M3 ( 2200 l/min ) : 72.5 m
    150 M3 (2500 l/min ) : 71.5 m
    168 M3 ( 2800 l/min ) : 70 m
    180 M3 ( 3000 l/min ) = 68.5 m
    192 M3 ( 3200 L/min ) = 67 m
    210 M3 ( 3500 L/min ) = 65 m
    240 M3 ( 4000 L/min ) = 61* m
    270 M3 ( 4500 L/min ) = 55.5* m
    300M3 ( 5000 L/min ) = 48.5 0 m
  • Weight : 287 kg

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