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MAN ES Turbocharging

NR-V NR24/V

Turbocharger · Turbochargers

Technical data from manufacturer or class sources · not yet verified by a person​‍​‍⁠⁠​‍‍⁠‍‌‍​⁠‌​⁠​‌

MAN ES Turbocharging NR-V NR24/V — NR-V, 6500 kW max.

Specifications

Technical data.reference — unverified

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Frame SizeNR24/V
Power max (kW)6500
Inspection

Inspector Detail ✓ verified

Common issues

  • Compressor wheel fouling due to dirty or salty air intake
  • Turbine blade erosion from high-temperature exhaust gases
  • Bearing wear and vibration caused by misalignment or imbalance
  • Oil leakage from seals or gaskets
  • Variable-geometry mechanism malfunction due to worn or damaged components
  • Lack of proper cooling leading to overheating and reduced performance

Inspection checklist

  • Compressor and turbine blade condition
  • Bearing and seal condition
  • Variable-geometry mechanism operation and adjustment
  • Oil system condition and leakage
  • Cooling system condition and performance
  • Vibration and balance checks
  • Exhaust gas temperature monitoring
  • Compressor inlet and outlet pressure checks

Service intervals

itemevery 2000-4000 operating hours or as recommended by manufacturer

Typical wear limits

compressor_blades10-20% of original thickness
turbine_blades5-15% of original thickness
bearings0.1-0.5 mm of radial clearance

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

  • Compressor and turbine blades
  • Bearing sets
  • Seal kits
  • Variable-geometry mechanism components
  • Oil pumps and filters
  • Cooling system components

Safety

  • High-temperature exhaust gases and risk of fire
  • Rotating components and risk of injury
  • Oil leakage and risk of slip or fire

Class survey

Surveyor typically checks for proper installation, maintenance records, and compliance with manufacturer's recommendations and classification society rules

Estimated lifetime: 20000-40000 hours before major overhaul

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