How often shall a power boiler with a Maximum Allowable Working Pressure (MAWP) over 400 be tested?

A power boiler with a Maximum Allowable Working Pressure (MAWP) over 400 psi is required to undergo testing annually. This standard is established to ensure the safety and reliability of high-pressure boilers, as they operate under extreme conditions that pose significant risks if not properly maintained and monitored. Regular annual testing helps to identify and mitigate concerns such as leaks, structural integrity, and operational efficiency.

Testing these boilers on a yearly basis ensures that any degradation or issues can be addressed promptly, thus preventing potential failures that could result in catastrophic incidents. This frequency aligns with safety regulations and industry best practices, ensuring that operators remain vigilant and proactive in their maintenance efforts.