CALPEDA PUMP NM 50/12S/C

Close-coupled centrifugal pumps, electric motor with extended shaft directly connected to the pumpup to 22 kW, new bracket construction for standard motors ( stub-shft 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 temperatures 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 230/400V ± 10% up to 3 kW
  400/690 V 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 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 : 4 kW, 5.5 Hp
• Maximum suction lift 1-2 m.
• Kapasitas Pompa ( Q ) : Total Head ( H )
  30 M³ ( 500 l/min ) : 26.5 m
  33 M³ ( 550 l/min ) : 26 m
  37.8 M³ ( 630 l/min ) : 25.5 m
  42 M³ ( 650 l/min ) : 24.5 m
  48 M³ ( 700 l/Min ) : 23.5 m
  54 M³ ( 900 l/Min ) : 22 m
  60 M³ ( 1000 l/Min ) : 20 m
  66 M³ ( 1100 l/Min ) : 18 m
  69 M³ ( 1150 l/Min ) : 16.5 m
  72 M³ ( 1200 l/Min ) : 15.5 m
  75 M³ ( 1250 l/Min ) : 14 m
  78 M³ ( 1300 l/Min ) : 13 m
  81 M³ ( 1350 l/Min ) : 11 m
• Weight : 54  kg