KSB Etaline 050-050-250 GG Coolant Pump Block Pump PK25/351
- A few left in stock!
KSB Etaline 050-050-250 GG
General Data- Pump type: Etaline 050-050-250-GGXCV66WX2EO4KCB
- Design: Block pump, single-stage, horizontal shaft
- Standard: EN 733
- Construction: Compact (close-coupled design)
- Fluid: Propylene glycol-based antifreeze (e.g., Antifrogen L), 30 %, closed system
Operating Data
- Flow rate: 53.41 m³/h
- Head: 65.03 m
- Rated speed: 3,000 rpm
- Pump efficiency: 64.06 %
- NPSH required: 5.01 m
- Max. operating power (hydraulic): 15.23 kW
- Max. power curve: 19.5 kW
- Max. discharge pressure: 7.47 bar
Drive
- Motor power: 18.5 kW
- Motor frame size: 160L
- Motor speed: 3,000 1/min
- Voltage: 400 V
- Frequency: 50 Hz
- Efficiency class: IE5 (Ultra Premium Efficiency)
- Motor current: 38.8 A
- Motor Cosφ: 0.79
- Motor efficiency: 93.7 %
- Motor protection class: IP55
- Motor design: IM V1 (vertical design)
- PumpDrive frequency converter
- Type: PumpDrive PDRV2-R018K50
- Output power: 18.5 kW
- Input: 380–480 V, 3~ AC, 50–60 Hz, 45.4 A
- Output: 0–140 Hz, 44 A
- Efficiency class: IE2: 1.7 % losses
- Protection class: IP55 (Type 12)
- Approval: CE, UKCA, cURus
Mechanical Data
- Impeller diameter: 223 mm
- Impeller type: radial closed, multi-channel
- Shaft seal: Mechanical seal BURGMANN MG13G6
- Material (pump casing, impeller): EN-GJL-250 (grey cast iron)
Temperature and Ambient Data
- Fluid temperature: -30 °C to +120 °C
- Ambient temperature: specified up to 20 °C
- Installation altitude: 1,000 m above sea level
Connections & Dimensions
- Suction/discharge flange: DN 50 / PN 16, drilled according to EN 1092-2
- Total weight of unit: approx. 181 kg
Special Features
- PumpMeter: Integrated intelligent pressure monitoring with display, differential pressure indication, Modbus RTU
- Special paint finish: RAL 6017 May green
- Corrosion protection variant T10
For all other data, please refer to the data sheet.
- Condition: new (original packaging)
- Our article number: PK25/351
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Further information
- Manufacturer: KSB
- Installation length: 440 mm
- Condition: new
- Pipe connection: DN 50
Secure shopping
All electrical equipment has undergone a VDE safety inspection.
Delivery & Shipping
- Austria: 1-2 working days
- Germany: 2–3 working days
- Europe-wide: 3–5 working days
Note:
For freight forwarding goods from 40 kg, the delivery time is 3–5 working days.


























