Which fire suppression system is typically used in areas where water can cause damage?

The preaction system is often employed in environments where the use of water for fire suppression could lead to significant damage, such as in museums, data centers, or areas with sensitive equipment. This type of system combines features of both wet and dry pipe systems. In a preaction system, the pipes are typically filled with air, and water is only released once the system is activated by both heat and smoke detection. This dual-trigger requirement means that water will not be released unless there is a confirmed fire risk, making it ideal for protecting valuable assets from water damage. By delaying the release of water until absolutely necessary, the preaction system provides a safeguard against accidental discharge, ensuring that the area remains safe from unnecessary damage due to water.