Enbloc centrifugal electric pumps with coupling designed for a wide range of applications such as:
Circulation of hot water for central heating.
Circulation of cold water for air conditioning and refrigerating.
Transfer of liquids in agriculture, horticulture and industries.
Implementation of pumping systems.
Particularly versatile thanks to the use of the HYDRODRIVER, it offers performance features that automatically adapt to various system requirements whilst keeping differential pressures constant. Single-stage, cast iron spiral body made to DIN-EN 733 (formerly DIN 24255), cast iron support, flanges in accordance with DIN 2533 and DIN 2532 for DN 200. Cast iron impeller, encased and dynamically balanced with compensation of the axial thrust by means of balancing holes, operating (on request) with interchangeable consumable rings. AISI 304 stainless steel pump shaft. Seal: standardised mechanical seal made to DIN 24960 in carbon / carborundum with O’ rings in EPDM. Closed, asynchronous motor with external ventilation, construction type B3/B5, 2 poles for NKP-GE and 4 poles for NKM-GE. Rotor mounted on oversized ball bearings to ensure silent running and long life. We recommend using overload protection for the motor, in accordance with current norms. In the case of liquids denser than water, the motors must be proportionally more powerful.
Built to IEC 2-3 standards
Protection level: IP 55
Insulation level: F
Standard voltage: single-phase 208/240 V - 50-60 Hz three-phase 380/480 V - 50-60 Hz
Speed of rotation: 1450 - 2900 1/min.
Operating range: from 1 to 210 m3/h with head up to 60 metres.
Pumped liquid: clean, without solid or abrasive substances, not viscous, not aggressive, not crystallised and chemically neutral, close to water characteristics.
Liquid temperature range: from -10°C to +140°C.
Maximum ambient temperature: +40°C.
Maximum working pressure: 16 bar - 1600 kPa (for DN 200 max. 10 bar).
Flanging: PN 16 DIN 2533
Installation: normally horizontal or vertical provided the motor is always above the pump.
Special versions on request: pumps for liquids other than water. Other voltages and/or frequencies.