Industrial Services

Shutdown & Maintenance Services

APTS offers general and specialist shutdown and maintenance services that are time-critical, ensuring safe and efficient operations of the clients’ assets.

This includes Chemical Cleaning, an efficient and cost-effective way to remove corrosion, deposits, residual oils/grease, and other obtrusive contaminants from tainted surfaces.

APTS also offers specialist Nitrogen services, for a variety of applications ranging from individual components to entire plants. This includes, but is not limited to; Nitrogen Purging and Blanketing, Drying, Pigging, and Leak Testing.

We also offer Helium Leak detection, with the addition of 1% Helium to Nitrogen which forms an extremely effective medium for leak detection.

Pre/De-Commissioning Services

APTS assists clients to achieve their goal of a safe and leak-free start up by offering pressure and leak testing services on isolated asset items, or entire plants. Our technical teams have many years of experience in all facets of pipeline testing and related activities, ensuring all jobs are completed to the highest standard.

APTS also provides testing solutions for in-service pipelines such as airport fuel pipelines and jetty fuel pipelines that require re-certification or periodic inspection at regular intervals.


  • Flange Management
  • Pressure Relief Valves
  • Heat Exchanger Services
  • Chemical Cleaning and Passivation
  • Nitrogen Purging
  • Nitrogen Drying
  • Leak and Pressure Testing
  • Reactor Hot Stripping
  • Reactor Cooldown Services
  • Sludge Profiling
  • Remote Tank Cleaning (Non-Man Entry)
  • Oil Flushing
  • Air Blowing
  • Pneumatic Leak Testing
  • Bolt Torquing and Tensioning
  • Helium Leak Testing
  • Nitrogen Foam Inerting
  • Nitrogen Blanketing
  • Dewatering
  • Gauge Pigging
  • Air Drying
  • Vacuum Dying
  • Pipeline Cleaning and Pigging