MULTISTAGE PUMP GRUNDFOS CRN In-line Vertical Multistage Pump with inlet and outlet ports on same the level (inline). Pump materials in contact with the liquid are in high-grade stainless steel. A built-in thrust-handling device absorbs hydraulic axial forces which enables the use of a standard motor.

The Grundfos cartridge shaft seal ensures high reliability, safe handling, and easy access and service. Wear parts in the shaft seal are available as service kits and can be replaced without having to renew the complete shaft seal. Power transmission is via a rigid split coupling. Pipe connection is via DIN flanges. The pump is fitted with a 3-phase, fan-cooled asynchronous motor.

The pump is fitted with a 3-phase, fan-cooled, permanent-magnet, synchronous 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.



Grundfos CRNE 125-1 Vertical multistage pump can be used for Irrigation, Industrial cooling, Desalination, Industrial heating, Machining, Process liquids transfer, Industrial process water treatment, Industrial cleaning process, Industrial water supply and transfer, Industrial wastewater treatment and reuse, Solar water solutions, Solar Controls & Digital Water Management, Solar Water Treatment Fertigation and Dosing, Surface water intake, Community water supply, Community solar solutions, Municipal solar solutions, Water distribution


  • Controls:
    • Frequency converter: Built-in
  • Liquid:
    • Pumped liquid: Water
    • Liquid temperature range: -20 .. 120 °C
    • Selected liquid temperature: 20 °C
    • Density: 998.2 kg/m³
  • Technical:
    • Pump speed on which pump data are based: 2977 rpm
    • Rated flow: 155 m³/h
    • Rated head: 166.9 m
    • Pump orientation: Vertical
    • Shaft seal arrangement: Single
  • Installation:
    • Maximum ambient temperature: 55 °C
    • Maximum operating pressure: 25 bar
    • Max pressure at stated temp: 25 bar / 90 °C
    • Type of connection: DIN
    • Size of inlet connection: DN 150
    • Size of outlet connection: DN 150
  • Electrical Data :
    • Motor standard: IEC
    • Rated power – P2: 90 kW
    • Power (P2) required by pump: 90 kW
    • Mains frequency: 50 Hz
    • Rated voltage: 3 x 380-420D/660-725Y V
    • Rated current: 152/88 A
    • Starting current: 720 %
    • Cos phi – power factor: 0.90
    • Rated speed: 2975 rpm
    • IE efficiency: IE3 95,0%
    • Motor efficiency at full load: 95.0 %

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