deluge valve การใช้

The initiation device signals the fire alarm panel, which in turn signals the deluge valve to open.
Manual activation is usually via an electric or pneumatic fire alarm pull station, which signals the fire alarm panel, which in turn signals the deluge valve to open.
To prevent the water supply pressure from forcing water into the piping, a " deluge valve " is used in the water supply connection, which is a mechanically latched valve.
Because the heat sensing elements present in the automatic sprinklers have been removed ( resulting in open sprinklers ), the deluge valve must be opened as signaled by a fire alarm system.
Operation-Activation of a fire alarm initiating device, or a manual pull station, signals the fire alarm panel, which in turn signals the deluge valve to open, allowing water to enter the piping system.