Under what condition is using a mechanical limiter to limit the makeup depth of a fitting brazed into medical gas piping permitted?

Under what condition is using a mechanical limiter to limit the makeup depth of a fitting brazed into medical gas piping permitted?

• A. Not less than the minimum cup depth per ANSI/ASME
• B. Only where BCuP 5 brazing rod is used
• C. Only on vacuum systems
• D. Only on final line connections

Answer: (A)

Makeup depth in a brazed medical gas joint must be enough to ensure a proper, leak-tight bond. When a mechanical limiter is used to control how much filler metal is applied, it is allowed only if the resulting joint depth is not less than the minimum cup depth specified by ANSI/ASME. This minimum depth guarantees the joint is fully fused and mechanically sound. The type of brazing alloy used, the system being vacuum, or whether it’s a final line connection does not change this requirement.

Makeup depth in a brazed medical gas joint must be enough to ensure a proper, leak-tight bond. When a mechanical limiter is used to control how much filler metal is applied, it is allowed only if the resulting joint depth is not less than the minimum cup depth specified by ANSI/ASME. This minimum depth guarantees the joint is fully fused and mechanically sound. The type of brazing alloy used, the system being vacuum, or whether it’s a final line connection does not change this requirement.