What is the maximum water temperature that can flow through the sprinkler portion of the system?

The maximum water temperature that can flow through the sprinkler portion of the system is 120°F. This temperature limit is important for several reasons. First, the materials used in sprinkler components, such as pipes, fittings, and heads, are designed to function optimally within a specific temperature range. When water temperatures exceed 120°F, there is an increased risk of degradation of these materials, which can lead to system failures or leaks.

Additionally, many sprinkler systems rely on heat detection mechanisms, such as thermosensitive elements, which trigger the activation of sprinklers in response to elevated temperatures. If the water temperature exceeds this threshold, it may also affect the calibration and functioning of these components, compromising the system's effectiveness in fire suppression.

By adhering to the 120°F maximum temperature guideline, sprinkler systems can ensure reliable performance and maintain safety standards to protect both property and life.