Plant Turnaround and Maintenance Works

Plant Turnaround and Maintenance Works

HFS’s provides a holistic approach in Plant Turnaround Services which assist our customers from consultation, installation to regular maintenance works.

Our Services Include:

  • Plant Turnaround service
  • Equipment/vessel cleaning, inspection and repair
  • Piping repair, modification and installation work
  • Safety valve testing and calibration
  • Provision of manpower supply services

General HRSG Inspection

A visual survey of the general HRSG condition, external casing, internal gas-side mechanical parts and auxiliary equipment. Readily accessible pressure part components are visually inspected. HFS recommends performing such a general inspection in addition to the basic inspections stipulated by local regulatory requirements. Time frame requirement: 2 – 3 days HRSG accessibility.

Aligning HRSG Inspections for Optimized Availability

In order to prevent forced outages, periodic inspections should be conducted during scheduled outages. This allows the identification of component damage in the earliest stages – when there is still time to schedule a cost-effective repair.

HFS recommends a general inspection every 1 to 2 years and a more detailed inspection every 3 to 5 years. In order to optimize the overall plant availability, it is important to align these inspections with those of the gas turbine. Therefore, the detailed inspection should coincide with a gas turbine planned outage, e.g. the major or hot gas path inspection.

Detailed HRSG Inspection

Includes all the general inspection steps plus a more detailed visual inspection of all accessible pressure parts. This visual inspection will identify any areas of concern that require subsequent non-destructive examination (NDE) to be performed by HFS qualified NDE technician. Time frame requirement: 4 – 6 days HRSG accessibility.

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