Calpeda - Model NM, NMS -Close Coupled Centrifugal Pumps with Flanged Connections 2- and 4- Poles
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).
- 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 irrigation.
- 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