CALPEDA PUMP B-NM 32/12D

Construction

Close-coupled centrifugal pumps; electric motor with extendedshaft 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 ) : 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 temperature  from -10⁰C to +90⁰C
• Ambient temperature up to 40⁰C
• 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 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.
• Packe 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 Caing 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	Cast iron GJL 200 EN 1561
Impeller	Cast iron GJL 200 EN 1561Brass P-Cu Zn 40 Pb 2 UNI 5705 For 32/12, 32/16, 32/20, 32L/20, 40/20	Bronze G-Cu Sn 10 En 1982Brass 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	Carbon-Ceramic-NBR
Counter-Flanges	Steel Fe 430B UNI 7070	Steel Fe 430B UNI 7070

Specifications

• Rated motor power output : 0,75 kW, 1 HP
• Weight : 27 kg