How often must copper-alloy tubing be supported when installed horizontally?

Copper-alloy tubing installed horizontally must be supported at intervals not exceeding 8 feet. This requirement ensures that the tubing remains secure and minimizes the risk of sagging and potential damage. Proper support is crucial for maintaining the integrity of the tubing, as excessive unsupported lengths can lead to stress on joints and connections, which may ultimately result in leaks or failures.

The 8-foot support interval is designated in the International Mechanical Code to address these concerns and ensures that the installation complies with safety and performance standards. Additionally, the implementation of this support guideline helps in simplifying maintenance and inspection processes, as well as ensuring the longevity of the installation.