What type of damage are pre-action sprinkler systems designed to prevent?

Pre-action sprinkler systems are specifically designed to prevent serious water damage in environments where protecting sensitive equipment or materials is critical. Unlike traditional wet pipe systems that contain water at all times, pre-action systems are kept dry until a fire detection mechanism (such as a smoke or heat detector) is activated. This two-step process minimizes the chances of unintended water discharge, which could occur from an accidental trigger or system failure.

By requiring both detection of a fire and activation of the system before water is released, pre-action sprinklers significantly reduce the risk of serious water damage that can occur in settings like data centers, libraries, or galleries where both fire safety and preservation of property are paramount. By focusing on detecting a fire first before allowing water into the system, pre-action systems offer a valuable balance between fire suppression and the protection of property from water-related harm.