POMPA CALPEDA NMS 80/250C/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 lanterm 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-aggresive for the pump materials (solid 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

  • 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 there-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 lower liquid or ambient temperatures
  • Motor suitable for operation with frequency converter up to 0.75 kW

Materials

ComponentNM. NMSB-NM, B-NMS
Pump casing  Lantern Bracket Nm Casing cover for NMSCast IronBronze
 GJL EN 1561G-Cu Sn 10 EN 1982
ImpellerCast Iron, GJL 200 EN 1561Bronze G-Cu Sn 10 EN 1982
 Brass P-CU ZN 40 Pb 2 UNI 5705 for 32/12, 32/16, 32/20, 321/20, 40/20 
ShaftCr-Ni Steel AISI 303AISI 430 from 3 kW to 22 kWCr Ni Mo Steel AISI 316 ̴
Mechanical sealCarbon-Ceramic-NBR 
Counter – FlangesSteel Fe 430B UNI 7070 

Specifications

  • Rated Motor Power Output : 37 kW, 50 Hp
  • Kapasitas Pompa (Q) : Total Head (H)
    75 m3 (1250 l/min) : 73.5 m
    84 m3 (1400 l/min) : 73 m
    96 m3 (1600 l/min) : 72 m
    108 m3 (1800 l/min) : 70.5 m
    120 m3 (2000 l/min) : 69 m
    132 m3 (2200 l/min) : 67 m
    150 m3 (2500 l/min) : 63* m
    168 m3 (2800 l/min) : 59 m
    180 m3 (3000 l/min) : 55.5* m
    192 m3 (3200 l/min) : 51.5 m
  • Weight : 287 kg

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