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Centrifugal pumpsn≈1450 1/min
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NM, NMD

NM, NMS

NM, NM4 Close-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 22 kW (15 kW for NM4).
NMS, NMS4 Close-coupled centrifugal pumps, new bracket construction for standard motors (stub-shaft construction) with integrated thrust bearing.
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)

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Description

Technical Specifications

Flow

1 / 480

mc / h

Head

3 / 95

m

Power

0.25 / 75

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 16 bar (10 bar for NM 32/12; NM,NM4 32/16,20; NM,NM4 40/25; NM,NM4 50/20,25; NM4 65/31; NM,NM4 100/25; NM4 100/315,400; NM4 125/250 and bronze version).
  • Continuous duty.
Additional information
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