How often do non-standard boilers need to be ultrasonically scanned for metal thickness?

The frequency of ultrasonic scanning for non-standard boilers is defined to ensure their safety and operational integrity over time. The requirement to perform an ultrasonic scan at the initial inspection and then every five years thereafter reflects the regulatory standards aimed at maintaining the structural integrity of these boilers. This periodic assessment allows for the identification of potential corrosion and thinning of the metal, which are critical factors in preventing failures that could lead to hazardous situations. By implementing this schedule, operators can address any issues proactively, ensuring that the boilers remain compliant with safety standards and operate effectively. The initial inspection establishes a baseline for the equipment's condition, while regular five-year follow-ups allow for ongoing monitoring of any changes in metal thickness, contributing to a comprehensive maintenance strategy.