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 cover in bronze (the pumps are supplied fully painted).
Connection : Flanges according to PN. 10, EN 1092-1, PN 16
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 (solids content up to 0.2%) for water supply.
For heating air conditioning, cooling and circulation plants.
For civil and industrial applications
For the 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; NM 80/16; NM 100/10)
- Continuous duty
Motor
- Other voltages. Frequency 60 Hz (as per 60 Hz data sheet)
- Protectin IP 55. Special mechanical seal
- Packed gland (only 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
| 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 : 7.5 kW, 10 Hp
- Maximum suction lift : 1-2 m
- Kapasitas Pompa (Q) : Total Head (H)
37.8 M3 (400 l.min) : 25.9 m
42 M3 (450 l.min) : 25.8 m
48 M3 (500 l.min) : 25.6 m
54 M3 (550 l.min) : 25.4 m
60 M3 (630 l.min) : 25.1 m
66 M3 (650 l.min) : 24.8 m
75 M3 (700 l.min) : 24.1 m
84 M3 (900 l.min) : 23.3 m
96 M3 (1000 l.min) : 21.9 m
108 M3 (1100 l.min) : 20 m
120 M3 (1200 l.min) : 17.6 m - Weight : 80.5 kg