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Napier (Wabtec)

TPS TPS52

Turbocharger · Turbochargers

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

The Napier TPS52 is a high-capacity turbocharger designed for four-stroke medium-speed marine diesel engines, delivering up to 4 500 kW of boost power.

Specifications

Technical data.reference — unverified

Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.

Frame SizeTPS52
Power max (kW)4500
Inspection

Inspector Detail

Common issues

  • Turbocharger blade erosion due to fouling or foreign object damage
  • Bearing wear or failure due to inadequate lubrication or contamination
  • Compressor wheel imbalance or vibration causing reduced performance or damage
  • Oil leakage from turbocharger seals or gaskets
  • Carbon buildup on turbine or compressor blades reducing efficiency
  • Inadequate cooling system performance causing overheating
  • Control system malfunctions or sensor failures affecting turbocharger operation

Inspection checklist

  • Visual inspection of turbocharger blades and compressor wheel for damage or wear
  • Check bearing condition and lubrication system
  • Verify proper operation of control system and sensors
  • Inspect cooling system for leaks or blockages
  • Check for oil leaks or signs of contamination
  • Measure vibration levels and balance of compressor wheel
  • Inspect turbine and compressor blades for carbon buildup or fouling
  • Check turbocharger mounting and alignment
  • Verify proper function of waste gate or bypass valve

Service intervals

major_overhaul30000 - 40000 hours
bearing_replacement20000 - 30000 hours
seal_replacement10000 - 20000 hours
filter_cleaning1000 - 2000 hours

Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.

Typical wear limits

blade_tip_clearance1.5 - 2.5 mm
bearing_clearance0.05 - 0.15 mm
shaft_runout0.05 - 0.1 mm
compressor_wheel_balance0.1 - 0.5 g/mm

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

Critical spares

  • Turbocharger blades
  • Bearing sets
  • Seal kits
  • Compressor wheel
  • Turbine shaft
  • Control system sensors
  • Lubrication system components

Safety

  • High-speed rotating components pose injury risk
  • Hot surfaces and components can cause burns
  • Oil leaks or spills can cause slipping hazards
  • Electrical components and control systems can pose shock hazard

Class survey

Class surveyor typically checks turbocharger performance, vibration levels, and condition of blades and bearings, as well as proper operation of control system and cooling system

Estimated lifetime: 40000 - 60000 hours

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