Pigtail inspection
Ensuring integrity where failure is not an option. FOERSTER’s Pigtail Inspection monitors the creep condition and magnetic permeability of outlet pigtails – critical components in reformer systems. Using precise two-axis diameter measurement and magnetometric analysis, it detects early signs of deformation and material embrittlement before failure occurs.
In steam methane reforming (SMR) units, pigtails are short, curved pipes that connect reformer catalyst tubes to the collection manifold. Their flexible geometry compensates for stress and displacement caused by thermal expansion during operation. Located at both the inlet and outlet of the reformer, they face high mechanical and thermal loads – especially the outlet pigtails, which operate at temperatures up to 900 °C and under severe corrosion.
To minimize the risk of creep deformation and failure, FOERSTER has developed a specialized measurement system for precise evaluation of pigtail condition. The device performs diametrical measurements along two axes, covering both straight sections and bends, and generates an accurate digital diameter profile over the full pigtail length.
Unlike manual gauge testing, the system is fast, reliable, and fully repeatable, enabling consistent monitoring between turnarounds and the early detection of deformation. With FOERSTER’s Pigtail Inspection, operators gain a clear, data-driven understanding of pigtail behavior – ensuring long-term reliability and plant safety.