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The control that floods a space.
Also known as: Release station sign, Remote release control symbol
The IMO symbol marking the station from which a fixed fire-extinguishing system is released into a protected space.
Marks the control station releasing a fixed fire-extinguishing system.
Contexts: Public information, Navigation
Operated only after the space has been evacuated and sealed, since the systems it releases work by displacing or excluding the air; the sign therefore marks a control with a mandatory procedure attached to it.
Contexts: Public information, Navigation
A white outline on a red ground showing a wall-mounted cabinet or lever within a box frame.