Construction
Close-coupled centrifugal pump; 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 casing and lantern bracket/ casig cover in bronze. (the pumps are supplied fully painted)
Connections : Flanges accordig to PN, EN 1092-2
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 fire fighting applications. For Irrigation
Operating Conditions
- Liquid temperature from -10 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 40,20; NM 50,16; NM 65/12, 16,20; NM 80/16; NM 100/20).
- Continuous duty
Motor
- 2-pole induction motor, 50 Hz (n≈2900 rpm)
- NM, NMS: thre-phase 230/400V±10% up to 3 kW; 400/690 V±10% from 75 kW
- Insulation class F. Prptection IP 54 (IP 55 for NMS0
- 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; 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
| 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 : 22 kW, 30HP
- Kapasitas Pompa (Q) : Total Head
75 M3 (1250 l/Min) : 46.5 m
84 M3 (1400 l/Min) : 46 m
96 M3 (1600 l/Min) : 45.5 m
108 M3 (1800 l/Min) : 44.5 m
120 M3 (2000 l/Min) : 43.5 m
132 M3 (2200 l/Min) : 42 m
150 M3 (2500 l/Min) : 39*m
168 M3 (2800 l/Min) : 35.5* m
180 M3 (3000 l/Min) : 32* m - Weight : -kg