Alarm Valves

Alarm valves are an integral part of fire suppression systems. These valves ensure the flow of water or other fire suppression agents into the system when the fire signal is activated. Their proper functioning is crucial for the timely detection of fire and the effective operation of the suppression system.

There are 4 main types of these valves:

1. Wet Alarm Valve: Used in water-filled piping systems. When the sprinkler head opens, water flow occurs, activating the valve's signal mechanism.

2. Dry Alarm Valve: Used in systems where the piping network is filled with compressed air or nitrogen instead of water. When the sprinkler opens, pressure drops, allowing the valve to permit water into the piping network.

3. Deluge Valve: Used in systems equipped with open-type sprinklers or water spray nozzles. Upon activation, the valve opens, allowing water to be distributed throughout the protected area.

4. Preaction Valve: Operates in conjunction with a fire alarm system. Depending on the system's configuration, the valve opens based on the fire signal or additional conditions, allowing water to enter the sprinkler network.

The selection of these valves depends on the fire risk of the facility, project requirements, piping network configuration, and applicable fire safety standards.