What is the name of the switch that notifies the fire alarm control panel if a supply control valve is in the wrong position?

The switch that notifies the fire alarm control panel if a supply control valve is in the wrong position is called a tamper switch. This type of switch is specifically designed to monitor the position of valves in a fire protection system, ensuring they are in the correct state—either open or closed—necessary for the system to operate effectively during a fire event. If a valve is found to be unsecured or in the incorrect position, the tamper switch activates and sends an alert to the fire alarm control panel, providing critical information that can impact response times and safety measures.

The flow switch, pressure switch, and detector switch serve different functions within a fire protection system. The flow switch detects the movement of water in the pipes, which indicates that the system is activated and water is flowing, while the pressure switch monitors the pressure within the system to ensure it operates correctly. The detector switch typically refers to devices that detect smoke, heat, or other indicators of fire. Each of these switches plays an important role in a fire safety system, but they do not perform the specific function of monitoring valve positions, which is the primary role of the tamper switch.