Grundfos - NKE 50-125/135AA2F2AESBQQELWB Long Coupled Single Stage End Suction Pump - 400V - Three Phase - 1253 Ltr/min. - Cast Iron

Non-self-priming, single-stage, centrifugal pump unit designed according to ISO 5199 with dimensions and rated performance according to EN 733. Flanges are PN 16 with dimensions according to EN 1092-2. The pump has an axial suction port, a radial discharge port and horizontal shaft. It is of the back pull-out design enabling removal of the motor, coupling, bearing bracket and impeller without disturbing the pump housing or pipework. The unbalanced rubber bellows seal is according to DIN EN 12756. The pump is equipped with a foot-mounted, fan-cooled motor. Pump and motor are mounted on a common base frame. 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.

Suitable for: Commercial heating, Commercial air conditioning, Commercial water pressure boosting, District heating, District cooling, Machining, Process liquids transfer, Industrial heating, Industrial cooling, Industrial water supply and transfer, Industrial process water treatment, Desalination, Surface water intake, Drinking water treatment, Water distribution, Irrigation, Community water supply, Wastewater treatment

Key Product Features

• Net weight: 123 kg
• Mains frequency: 50 Hz
• Rated Head: 18.77 m
• Rated Flow: 75.15 m³/h
• Product Voltage: 3 x 380-500 V
• Temperature Liquid Range: -25 .. 120 °C
• Pumped Liquid: Water
• Maximum Operating Pressure: 16 bar
• Impeller Material: Cast Iron
• Pump Housing Material: Cast Iron

This is a Grundfos End-Suction pump used for circulation and transfer duties.

Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.