What is a pre-action valve?

      A pre-action valve is a type of fire alarm valve used in high-risk environments. The valve acts as a barrier between the fire protection system and the water supply. Its primary function is to prevent accidental discharge of water from the system. This is important because the unintentional discharge of water can result in significant damage to property, equipment, and the environment.

    The pre-action valve is designed to activate only when both the fire alarm system and the sprinkler system have been triggered. This means that the valve requires two separate signals to function, eliminating the risk of false alarms. This double activation process ensures that the water supply is only released when there is an actual fire, preventing unnecessary water damage. In short, pre-action valves provide an added layer of protection against fire outbreaks, by preventing accidental water discharge and reducing false alarms.