Constructions
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 casng and lanteern 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 ) : Flanges for welding EN 1092-1, PN 10.
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 forNM 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 |
||
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, 30 Hp
- Kapasitas Pompa ( Q ) : Total Head ( H )
48 M3 ( 800 l/min ) : 57 m
54 M3 ( 900 l/min ) : 57 m
60 M3 ( 1000 l/min ) : 57 m
66 M3 ( 1100 l/min ) : 56.5 m
75 M3 ( 1250 l/Min ) : 56 m
84 M3 ( 1400 l/Min ) : 55.5 m
96 M3 ( 1600 l/Min ) : 54 m
108 M3 ( 1800 l/Min ) : 52.5 m
120 M3 (2000 l/min ) : 50 m
132 M3 ( 2200 l/min ) : 47.5 m
141 M3 ( 2350 L/min ) : 45.5 m - Weight : – kg