NM, NMD
Close-coupled, centrifugal pumps with screwed connections; electric motor with extended shaft directly connected to the pump.
NM: single-impeller
NMD: with two back-to-back impellers (with axial thrust balancing).
Connections: threaded ports ISO 228/1 (BS 2779).
NM, NMD: version with pump casing and lantern bracket in cast iron.
BNM, BNMD: version with pump casing and lantern bracket in bronze.
The pumps are supplied fully painted.
Technical Specifications
Flow
1 / 66
mc / h
Head
3.5 / 114
m
Power
0.37 / 9.2
kW
Applications
- For clean liquids without abrasives, which are non-aggressive for the pump materials (solids content up to 0.2%).
- For water supply.
- For irrigation.
- For heating, air-conditioning, cooling and circulation plants.
- For civil and industrial applications.
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 pumps NMD 25/190; NMD 32/210; NMD 40/180).
- Continuous duty.
| Brands | Calpeda |
|---|---|
| Category Top Level | Building Services |
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NM, NM4 Close-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 22 kW (15 kW for NM4).
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Rated speed of rotation (50 Hz):
NM, NMS ≈ 2900 rpm.
NM4, NMS4 ≈ 1450 rpm.
Pump casing with axial suction and radial delivery on top, main dimensions and performance according to EN 733 with additional sizes for completion. (NMS4 80/400).
N 40-250C version with pump casing and lantern bracket in cast iron.
BNM(S), BNM(S)4: version with pump casing and lantern bracket/casing cover in bronze.
The pumps are supplied fully painted.
Version with frequency converter (on request)
Centrifugal pumpsn≈1450 1/min
Close-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 15 kW, new bracket construction for standard motors (Stub-shaft construction) from 18,5 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 with additional sizes for completion.
NM(S)4: version with pump casing and lantern bracket in cast iron.
BNM(S)4: version with pump casing and lantern bracket/casing cover in bronze.
The pumps are supplied fully painted.
Version with frequency converter (on request)
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