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 bronze (the pumps are supplied fuly painte).
Connections : Flanges according to EN 733
Counter civil and industrial applications
For fire fighting applications. For Irrigations
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 230/400V ±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 frrquency converter from 1.1 kW
- Classification scheme IE3 for three-phase motors from 0.75 kW
- Contructed 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-phase motor (NMM) up to 1,5 kW
- Higher or lower liquids or ambient temperatures
- Motor suitable for operation with frequency converter up to 0.75 kW
Materials
| Component | NM. NMS | B-NM, B-NMS |
| Pump casing Lantern Bracket Nm Casing cover for NMS | Cast Iron | Bronze |
| GJL EN 1561 | G-Cu Sn 10 EN 1982 | |
| 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, 321/20, 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 : 1.5 kW, 2HP
- Maximum suction lift 1-2 m
- Kapasitas Pompa (Q) : Total Head (H)
15 M3 (250 l/min) : 17.5 m
16.8 M3 (280 l/min) : 17 m
21 M3 (350 l/min) : 16 m
24 M3 (400 l/min) : 15 m
27 M3 (450 l/min) : 13.5 m
30 M3 (500 l/min) : 12 m
33 M3 (550 l/min) : 10.5 m
37.8 M3 (630 l/min) : 7.5 m
39 M3 (650 l/min) : 6.5 m - Weight : 49.5 kg