What happens when a deluge system is activated?

What happens when a deluge system is activated?

• A. Water is released to a single head
• B. Water is directed to the most critical zone
• C. The system stops water flow
• D. All sprinkler heads discharge water

Answer: (D)

Deluge systems are designed so every sprinkler head is open and the piping is filled with water. When the system is activated, a deluge valve releases water into all of the lines, so water flows from every sprinkler head at once. This provides rapid, full-area coverage, which is essential in high-hazard environments where you want immediate suppression across a large area. Activation can happen automatically through detection devices or manually, but the key point is that all heads discharge water simultaneously rather than just a selected zone.

Deluge systems are designed so every sprinkler head is open and the piping is filled with water. When the system is activated, a deluge valve releases water into all of the lines, so water flows from every sprinkler head at once. This provides rapid, full-area coverage, which is essential in high-hazard environments where you want immediate suppression across a large area. Activation can happen automatically through detection devices or manually, but the key point is that all heads discharge water simultaneously rather than just a selected zone.