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/casing.
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 -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 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 |
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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 : 2,2 kW, 3 HP
- Maximum suction lift 1-2 m
- Kapasitas Pompa ( Q ) : Total Head ( H )
9,6 M3 ( 160 l/min ) : 25.1 m
10,8 M3 ( 180 l/min ) : 24.9 m
12 M3 ( 200 l/min ) : 24.7 m
13.2 M3 ( 220 l/min ) : 24.4 m
15 M3 ( 250 l/min ) : 23.8 m
16,8 M3 ( 280 l/min ) : 23 m
18,9 M3 ( 315 l/min ) : 21.8 m
21 M3 ( 350 l/min ) : 20.3 m
24 M3 ( 400 l/min ) : 17.3 m
27 M3 ( 450 l/min ) : 13.4 m - Weight : 42.5 kg