Grundfos NBE 65-250/263 AFA BAQE Pump with integral 4 kW Variable Speed Motor

  

Grundfos NBE 65-250/263 AFA BAQE Pump with 4 kW Variable Speed Motor. Non-self-priming, single-stage, centrifugal volute pump designed according to ISO 5199 with dimensions and rated performance according to EN 733 (10 bar). Flanges are PN 16 with dimensions according to DIN. The pump has an axial suction port, radial discharge port, horizontal shaft and a back pull-out design enabling removal of the motor, motor stool, cover and impeller without disturbing the pump housing or pipework.

The unbalanced rubber bellows seal is according to DIN EN 12756. The pump is close-coupled to a fan-cooled asynchronous motor.

The motor includes a frequency converter and PI controller in the motor terminal box. This enables continuously variable control of the motor speed, which again enables adaptation of the performance to a given requirement. Selected liquid temperature: 20 °C. Pump speed on which pump data are based: 1430 rpm.

Rated flow: 46.2 m³/h. Rated head: 18.9 m. Actual impeller diameter: 263 mm. Code for shaft seal: BAQE. Curve tolerance: ISO9906:2012 3B. Wear ring: High alloy brassCuZn34Mn3AI2. Maximum ambient temperature: 40 °C. Size of inlet connection: DN 65. Size of outlet connection: DN 50. Rated power - P2: 4 kW.

Rated voltage: 3 x 380-480 V. Rated current: 8.10-6.60 A. Cos phi - power factor: 0.94-0.92. Motor efficiency at full load: 86.6 %. Enclosure class (IEC 34-5): IP55.

Insulation class (IEC 85): F.