How often does a welder working on hydronic pipes need to be requalified?

The requirement for a welder working on hydronic pipes to be requalified every 5 years is based on industry standards and safety regulations. Regular requalification is necessary to ensure that welders maintain their skills and knowledge of welding procedures, as well as to keep up with any changes in technology or regulations that may affect their work.

Requalifying every 5 years provides a balance between ensuring that welders are proficient while also allowing for a reasonable amount of time for experience and practice. This timeframe helps ensure the integrity and safety of the pipes being welded, which is critical in hydronic systems that rely on high pressure and need reliable, leak-proof joints.

This interval of 5 years is widely accepted in various codes and standards that govern welding practices, aligning with the need for maintaining high levels of workmanship in such critical applications.