The line of intersection between two adjacent gores of a round elbow is known as the?

The line of intersection between two adjacent gores of a round elbow is referred to as the mitre line. This line plays an essential role in the construction and fitting of round elbows in HVAC sheet metal work. When fabricating a round elbow, the gores (the pie-shaped sections cut from a flat sheet of metal) are joined together to create a smooth bend. The mitre line indicates where these sections meet and ensures that the elbow has a proper and geometrically accurate shape.

Understanding the mitre line is crucial for achieving optimal airflow and maintaining system efficiency, as improper alignment can lead to turbulence and losses in performance. This line is different from other terms associated with angles or rises, which may refer instead to specific measurements or other aspects of ductwork that don’t directly pertain to the intersection of the gores in this context.