What is the accepted maximum length for copper lines before requiring a hanger?

The accepted maximum length for copper lines before requiring a hanger is 6 feet. This guideline is based on industry standards that aim to prevent sagging and ensure the integrity of the piping system. Proper support is essential in maintaining the positioning of copper lines to avoid stress and potential damage that can lead to leaks.

When copper lines are spaced beyond this length without adequate support, they may experience excessive movement or droop, which can compromise the overall performance of the fire protection system. By adhering to the 6-foot maximum requirement for hangers, installers ensure that the pipes remain securely positioned and properly supported throughout the system, contributing to its durability and effectiveness.