What does the symbol for a soldered reducer (concentric) look like in plumbing diagrams?

The symbol for a soldered reducer (concentric) in plumbing diagrams is represented by circular lines inside each other. This representation effectively conveys the concept of a concentric reducer, which typically connects pipes of different diameters while maintaining a central alignment. The circular design reflects the physical appearance of the reducer, showing the gradual reduction in size that facilitates the flow of fluids from a larger pipe to a smaller one.

In plumbing schematics, the use of circular lines helps to standardize the representation of various components, making it easier for professionals to recognize and understand the relationships between different parts of a piping system. The correct symbol aids in the accurate interpretation of diagrams, which is critical for effective installation and maintenance of plumbing systems.