Which sprinkler system releases water to all sprinkler heads when any head is activated?

Which sprinkler system releases water to all sprinkler heads when any head is activated?

• A. Deluge system
• B. Wet system
• C. Dry system
• D. Pre-action system

Answer: (A)

Deluge systems deliver water to every sprinkler head because all heads are open and connected to the same piping. When the system is activated, water is released through every head, providing coverage across the entire area. This is different from wet systems, where pipes are filled with water but only the head that trips releases water; dry systems have pipes filled with pressurized air and water only enters the pipes after activation of a head; and pre-action systems require a two-step event before water can flow into the heads. So, releasing water to all heads when any head is activated is a hallmark of a deluge system.

Deluge systems deliver water to every sprinkler head because all heads are open and connected to the same piping. When the system is activated, water is released through every head, providing coverage across the entire area. This is different from wet systems, where pipes are filled with water but only the head that trips releases water; dry systems have pipes filled with pressurized air and water only enters the pipes after activation of a head; and pre-action systems require a two-step event before water can flow into the heads. So, releasing water to all heads when any head is activated is a hallmark of a deluge system.