Applied Technical Services conducts Fitness‑for‑Service (FFS) evaluations in line with the guidelines outlined in the API 579‑1/ASME FFS‑1 standard. Regardless of how reliable or robust a pressure vessel, storage tank, or piping system may be, degradation over time is an inevitability for all equipment. Mechanical deformation, corrosion, and cracks are realities of industrial operation, and equipment owners and operators must decide when it’s best to repair or replace their equipment. Our FFS evaluations provide our clients with a data-driven and in-depth understanding of their assets’ condition.
Understanding Fitness‑for‑Service
Fitness‑for‑Service, also known as Fitness‑for‑Purpose, is an engineering methodology used to evaluate aged or damaged components. The methodology is often used to manage assets in the chemical processing, power generation, and oil and gas sectors. The API 579-1/ASME FFS-1 standard governs FFS assessments, providing inspectors with the framework necessary to thoroughly evaluate equipment in its current, real-world condition.
Unlike design codes such as ASME Section VIII, which apply to new construction, FFS assessments determine whether the continued operation of existing equipment is advisable under present loads and temperatures.
ATS FFS Evaluation Capabilities
ATS performs comprehensive, tiered FFS evaluations, converting complex inspection data into clear operational guidelines. Our engineers and materials specialists utilize advanced analytical techniques to characterize damage mechanisms, including:
- Stress corrosion cracking
- Localized corrosion
- Geometric distortion
We offer tiered API 579‑1/ASME FFS assessments ranging from Level 1 screening through Level 3 Finite Element Analysis (FEA). These assessments provide our clients with the following:
- Information about an asset’s structural integrity
- Calculations of the Remaining Useful Life (RUL) of equipment
- A defined Safe Operating Envelope (SOE)
We strive to keep your pressure‑retaining assets compliant, reliable, and safe.
How FFS Evaluations Benefit Your Operation
- Maximize useful life: Validate asset operation to avoid unnecessary repairs or replacements.
- Avoid premature capital spend: Show when flaws are non-critical to prevent unnecessary decommissioning.
- Define Safe Operating Limits: Establish pressure and temperature boundaries that support continued service when full‑capacity operation is no longer advisable.
Contact Us
ATS provides the clarity and engineering confidence needed to maintain safe and reliable operations. To discuss your equipment or request an evaluation, submit a web form or call +1 (888)-287-5227.
