According to the ASME Code, the adjusting of safety valves should be done by the _______?

The adjusting of safety valves according to the ASME Code should be performed by the manufacturer or an authorized representative. This requirement is in place because safety valves are critical components designed to ensure the safe operation of pressure vessels and boilers. They must be adjusted accurately to prevent overpressure situations that can lead to equipment failure or catastrophic incidents.

Manufacturers have specific knowledge about the design and operational parameters of their valves, enabling them to make precise adjustments as needed. Their understanding of the safety valve's functionality, including spring tensions and pressure settings, ensures that the valve performs correctly under varying conditions. This specialized training and expertise are essential to maintain safety standards and regulatory compliance.

While other individuals on-site, such as licensed engineers or boiler operators, play vital roles in the overall operation and maintenance of steam systems, they may not possess the necessary expertise or authorized training to adjust safety valves effectively. Therefore, the involvement of the manufacturer or an authorized representative is crucial for maintaining high safety standards as set forth by the ASME Code.