What device should control the water supply?

What device should control the water supply?

• A. Manual shutoff valve
• B. Supervised water supply control valve
• C. Automatic pressure regulator
• D. Backflow preventer

Answer: (C)

Maintaining a consistent water pressure is essential for a fire suppression system to function reliably. An automatic pressure regulator automatically adjusts downstream pressure to the set level, regardless of fluctuations in the source supply. This keeps the system at its designed throughput, so when the system is activated, the discharge is predictable and effective, and the components aren’t stressed by sudden pressure surges. A manual shutoff valve is just for manual control and won’t maintain pressure automatically. A supervised water supply control valve provides monitoring but isn’t primarily a regulator. A backflow preventer protects the clean-water supply from contamination; it doesn’t regulate how much water pressure reaches the system.

Maintaining a consistent water pressure is essential for a fire suppression system to function reliably. An automatic pressure regulator automatically adjusts downstream pressure to the set level, regardless of fluctuations in the source supply. This keeps the system at its designed throughput, so when the system is activated, the discharge is predictable and effective, and the components aren’t stressed by sudden pressure surges. A manual shutoff valve is just for manual control and won’t maintain pressure automatically. A supervised water supply control valve provides monitoring but isn’t primarily a regulator. A backflow preventer protects the clean-water supply from contamination; it doesn’t regulate how much water pressure reaches the system.