centrifugal pump dab NKM-GE NKP-GE-MCE/C
centrifugal pump dab NKM-GE NKP-GE – MCE/CCantilever monoblock centrifugal pumps with rigid coupling are designed for a wide range of applications, such as:
- Circulation of hot water in heating systems.
- Circulation of cold water in air conditioning systems.
- Circulation of cold water in cooling circuits.
Presence of inverter MCE/C provides high operational flexibility, allowing the pump to automatically adapt to different system requirements and maintain a constant pressure drop.
TECHNICAL CHARACTERISTICS
- Rotation speed: 1,450–2,900 rpm.
- Operating range: ;flow from 1 to 450 m3/h, pressure up to 72 m.
- Liquid temperature range: from-10 to +140 °C.
- Pumped liquid: clean, free of solid and abrasive inclusions, non-viscous, non-aggressive, non-crystallized, chemically neutral, with characteristics close to water.
- Installation: mounting is allowed in a horizontal or vertical position with the obligatory location of the engine above the hydraulics.
- Maximum ambient temperature: +40 °C.
- Maximum operating pressure: 16 Bar, (1600 kPa), for DN 200 no more than 10 Bar.
- Degree of protection: IP 55.
- Insulation class: F.
- Flanges: PN 16 according to DIN 2533.
- Special designs on request: pumps for pumping liquids other than water;
electric motors for other voltages and/or frequencies ;
IF with signal modulation 0-10 V.
DESIGN FEATURES
The hydraulic housing is made of cast iron and meets the requirements standard DIN-EN 733 (set. DIN 24255). The engine mount is made of cast iron. The flanges meet the requirements of DIN 2533 and DIN 2532 for DN 200. The closed cast iron impeller is dynamically balanced by compensating axial forces using balancing holes, and wear ring on the impeller neck to reduce hydraulic losses (available on request). Pump shaft made of AISI 304 stainless steel. Mechanical seal graphite/silicon carbide standardized to DIN 24960 with EPDM O-rings. The pumps are equipped with an air-cooled asynchronous electric motor of design B3/B5: two-pole for NKP-GE models and four-pole for NKM-GE. The rotor rotates on oversized bearings, ensuring low noise levels and long engine life.
