Construction
Close-coupled, centrifugal pumps; 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. B-NM, B-NMD:version with pump casing and lantern bracket in bronze. (the pumps are supplied fully painted).
Applications
For clean liquids without abrasives, which are non-aggressivefor 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 for pumps NMD 25/190; NMD 32/210; NMD 40/180). Continuous duty.