NM, NMD
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NM, NMD Close Coupled Centrifugal Pumps with threaded ports 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-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 for pumps NMD 25/190; NMD 32/210; NMD 40/180). Continuous duty. Motor 2-pole induction motor, 50 Hz (n » 2900 rpm). NM, NMD: three-phase 230/400 V ± 10% up to 3 kW; 400/690 V ± 10% from 4 to 9,2 kW; NMM, NMDM: single-phase 230 V ± 10%, with thermal protector. Insulation class F. Protection IP 54. 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. EN 60335-1, EN 60335-2-41. Special features on request - Other voltages. - Frequency 60 Hz (as per 60 Hz data sheet). - Protection IP 55. - Special mechanical seal - Higher or lower liquid or ambient temperatures. - Motor suitable for operation with frequency converter up to 0,75 kW.

Close Coupled Centrifugal Pumps with threaded ports

Close Coupled Centrifugal Pumps with threaded ports P1 Maximum power input.P2 Rated motor power output.Ia/In D.O.L. starting current / Nominal current 9

Close Coupled Centrifugal Pumps with threaded ports

Close Coupled Centrifugal Pumps with threaded ports

Close Coupled Centrifugal Pumps with threaded ports

Close Coupled Centrifugal Pumps with threaded ports

Close Coupled Centrifugal Pumps with threaded ports

Close Coupled Centrifugal Pumps with threaded ports calpeda Dimensions and weights TYPE

Close Coupled Centrifugal Pumps with threaded ports calpeda Dimensions and weights NMD 20/110

Close Coupled Centrifugal Pumps with threaded ports Compact Design The compact design allows for easy installtion even in confined spaces. Robust The mechanical structure of the hydraulic parts in contact with the pumped liquid are dimensioned to guarantee the maximum resistence to mechanical stress. A unique design The lantern bracket design prevents contact with the pumps rotating parts, providing protection to the end user whilst allowing for inspection of the mechanical seal. Reliable The bearing and shaft are designed to ensure the reduction of the stress, providing high reliability...

Close Coupled Centrifugal Pumps with threaded ports Flexible The option to choose between cast iron and bronze materias for the hydraulic parts in contact with the pumped liquid allows NMD series pumps to be selected for use with different types of liquids. Robust The mechanical structure of the hydraulic parts in contact with the pumped liquid are dimensioned to guarantee the maximum resistence to mechanical stress. Reliable The bearing and shaft are designed to ensure the reduction of the stress, providing high reliability under all operating conditions.