Steam Turbine Services

Steam Turbine Overhaul

Complete overhaul services from casing opening and rotor removal to inspection, repair, precision reassembly and return to service.

Supporting steam turbine units across power generation and industrial facilities in Indonesia.

Complete Overhaul Capability

More Than Opening and Closing a Turbine.

A major overhaul requires systematic dismantling, detailed inspection, accurate measurement, engineering assessment, repair and restoration, precision reassembly, and final verification.

DISMANTLE→INSPECT→MEASURE→ASSESS→REPAIR→REASSEMBLE→TEST
See Our Overhaul Procedure
Steam turbine casing opened during overhaul

Turbine Casing & Flow Path

Inspection and overhaul of the turbine casing and internal flow-path components to identify wear, deformation, deposits, damage and abnormal clearances.

  • Upper casing opening and removal
  • Casing condition inspection
  • Diaphragm inspection
  • Flow-path inspection
  • Internal component inspection
  • Clearance measurement
  • Component cleaning
  • Reassembly and clearance adjustment

Rotor & Blades

Detailed inspection and measurement of the turbine rotor, journals and blade system during overhaul.

Rotor

  • Rotor removal and lifting
  • Rotor visual inspection
  • Journal inspection
  • Shaft/runout measurement
  • Coupling inspection
  • Surface condition assessment

Blades

  • Blade visual inspection
  • Damage and crack inspection
  • Deposit / erosion assessment
  • Blade condition assessment
  • NDT where required
Turbine rotor removal during overhaul

Bearings & Thrust System

Inspection, measurement and restoration of turbine journal bearings and thrust components are critical to rotor stability and reliable operation.

  • Journal bearing inspection
  • Thrust bearing inspection
  • Bearing surface/contact inspection
  • Bearing clearance measurement
  • Journal condition inspection
  • Thrust clearance measurement
  • Adjustment and repair as required
Turbine bearing inspection and installation
CLEARANCECONTACTALIGNMENTCONDITION

Steam Seals & Clearances

Inspection and adjustment of steam seals and critical turbine clearances to restore proper mechanical condition and minimize unnecessary internal leakage.

  • Shaft seal inspection
  • Diaphragm seal inspection
  • Seal clearance measurement
  • Seal condition assessment
  • Adjustment
  • Replacement where required
  • Final clearance verification

Precision Matters.

Main Stop & Governing Valves

Inspection and overhaul of critical steam admission and governing valve components as part of the turbine overhaul scope.

  • Valve dismantling
  • Valve body inspection
  • Stem inspection
  • Valve seat inspection
  • Internal component inspection
  • Cleaning
  • Repair / restoration as required
  • Reassembly
  • Stroke / functional verification where applicable
Turbine valve and component overhaul

Governing & Protection Components

Inspection and verification of relevant turbine governing, actuation and protection components associated with overhaul work.

Actuation componentsLVDTsGoverning-related componentsTrip/protection-related checksFunctional verification

We Don't Repair Before We Understand the Condition.

INSPECT↓
MEASURE↓
ANALYZE↓
DECIDE

During overhaul, equipment condition and measurement results are reviewed before repair, adjustment or replacement actions are determined.

Acceptable

Within tolerance — no action required

Adjustment Required

Within repairable range — recalibrate or adjust

Repair Required

Damaged but restorable — execute repair procedure

Replacement Recommended

Beyond repair — source and replace component

Repair & Restoration

Based on inspection findings, appropriate repair and restoration work can be performed on-site or through suitable workshop resources depending on component condition and technical requirements.

Bearing repairOn-site / Workshop
Steam seal restorationOn-site / Workshop
Valve restorationOn-site / Workshop
Blade repairWorkshop
Rotor-related repairWorkshop
Casing/component repairOn-site / Workshop
Component adjustmentOn-site
Replacement of damaged componentsOn-site / Workshop
On-site
Workshop
Precision alignment during turbine reassembly

Precision Reassembly

What Happens During Reassembly Determines What Happens After Startup.

  • Rotor positioning
  • Bearing installation
  • Clearance adjustment
  • Coupling alignment
  • Turbine casing reassembly
  • Valve reassembly
  • Final mechanical inspection
  • Oil-system restoration as applicable
MEASURE→VERIFY→ASSEMBLE→RECHECK

Testing & Return to Service

The overhaul is not complete when the casing is closed. Final checks and testing verify the turbine's condition before and during its return to operation.

Mechanical final checks
Oil circulation where applicable
Turning gear operation
Instrument verification
Protection-related checks
Valve functional checks
Vibration monitoring
No-load operation
Synchronization support
Load observation

RETURN TO RELIABLE OPERATION

Complete Steam Turbine Overhaul Scope

CASINGROTORBLADESBEARINGSSTEAM SEALSVALVESGOVERNING COMPONENTSALIGNMENTTESTING

Proven in the Field

See Our Steam Turbine Overhaul Experience.

60 MW steam turbine overhaul project

60 MW Steam Turbine-Generator Major Overhaul

Jambi, Indonesia

Capacity

60 MW

Project

Major Overhaul

Scope

Steam Turbine + Generator

Schedule

30 Days

View Project References

Your Next Overhaul

Planning a Steam Turbine Overhaul?

Send us the turbine manufacturer, model, capacity, operating history, planned outage date and preliminary overhaul scope. Our team can review the requirements with you.