What is the thickness requirement for a cast iron flange?

The correct thickness requirement for a cast iron flange is 1/4 inch. This specification is in accordance with established plumbing standards that ensure sufficient strength and durability in the connection between pipes or fittings. A 1/4 inch thickness provides the necessary mechanical stability to withstand operational pressures and stresses while also allowing for a secure seal when bolted together with other components.

In the context of plumbing systems, the thickness of flanges is critical to prevent failures such as leaks or breakage under load. The standards are set based on the expected use and environmental factors, such as temperature and fluid types that the plumbing system may handle. Thus, using a flange with the correct thickness ensures reliability, safety, and compliance with plumbing codes.

While other thicknesses may be mentioned, they do not provide the optimal balance of strength and flexibility in typical plumbing applications. This makes the 1/4 inch thickness the appropriate choice for cast iron flanges in accordance with plumbing best practices.