Which system uses a deluge valve to allow water into the system when detection occurs?

Which system uses a deluge valve to allow water into the system when detection occurs?

• A. Wet Pipe System
• B. Deluge System
• C. Dry Pipe System
• D. Pre-Action System

Answer: (B)

The key idea is how water is released into the sprinkler network when detection occurs. In a deluge system, water is kept out of the pipes by a deluge valve. When the detection system is activated, that valve opens and instantly fills the entire network with water, causing all sprinkler heads to discharge simultaneously. This is different from wet pipe (pipes already full of water and water is released at the activated head), dry pipe (pipes filled with air and water enters the system after the dry-pipe valve opens), or a pre-action system (water is released only after a two-step sequence). So, the deluge valve is the control that allows water into the system on detection, enabling water to reach all sprinklers.

The key idea is how water is released into the sprinkler network when detection occurs. In a deluge system, water is kept out of the pipes by a deluge valve. When the detection system is activated, that valve opens and instantly fills the entire network with water, causing all sprinkler heads to discharge simultaneously. This is different from wet pipe (pipes already full of water and water is released at the activated head), dry pipe (pipes filled with air and water enters the system after the dry-pipe valve opens), or a pre-action system (water is released only after a two-step sequence). So, the deluge valve is the control that allows water into the system on detection, enabling water to reach all sprinklers.