What does the third number in the identification stamping of a metallic ring gasket indicate?

The third number in the identification stamping of a metallic ring gasket signifies the ring gasket sizing. This numerical representation is critical for ensuring the proper fit and compatibility with the piping system. The size of the gasket must match both the pipe diameter and the flange specifications to maintain an effective seal and prevent leaks in mechanical systems. Different sizes accommodate varying pressure ratings and applications, which is crucial for the safe and efficient operation of systems utilizing these gaskets.

In the context of gasket identification, the other aspects, such as material type and temperature rating, are significant but are represented by different numbers or designations in the stamping. Manufacturer codes serve to identify the producer of the gasket, but they do not provide information regarding size. Understanding this numbering system is essential for ensuring that the right component is selected for installation in piping systems.