In a wet pipe system, what device is commonly linked to alarms for monitoring flow?

In a wet pipe system, the device that is commonly linked to alarms for monitoring flow is the waterflow alarm device. This device is specifically designed to detect and respond to the flow of water within the system, signifying that a sprinkler head has activated and water is being discharged. When water begins to flow through the system due to a fire condition, the waterflow alarm device activates an alarm to alert building occupants and the fire department of the potential emergency situation.

This monitoring is crucial because prompt notification can significantly improve response times and potentially mitigate damage. The waterflow alarm device often includes features such as mechanical connections or electronic sensors that trigger alarms when a predetermined water flow is detected.

The other devices listed do not serve the primary purpose of monitoring flow for alarm purposes. For instance, a pressure regulator is focused on maintaining consistent water pressure and does not trigger alarms directly. Similarly, a flow control valve manages the flow within the system but does not provide alarm functions related to flow detection. A hydrant indicator valve is used to show whether a hydrant is open or closed, which is unrelated to flow monitoring within the sprinkler system itself.