What is the purpose of a pressure gauge on a sprinkler riser?

What is the purpose of a pressure gauge on a sprinkler riser?

• A. To indicate the water pressure inside the system and verify adequate supply.
• B. To measure the room temperature.
• C. To trigger water flow alarms.
• D. To drain water from the system.

Answer: (A)

The key idea is that a pressure gauge on a sprinkler riser shows the water pressure in the system, letting you confirm the supply is adequate and the system is charged properly. Reading the gauge helps you verify that there is enough pressure for the sprinkler heads to operate as designed and to spot issues like a partially closed valve, a leak, or pump/supply problems that would drop pressure. It’s not meant to measure temperature, and the gauge itself doesn’t trigger alarms or drain water—the alarms are connected to other devices that respond to pressure or flow changes, and drainage is handled by separate drain valves. In short, the gauge provides a real-time check of the system’s pressure to ensure reliable sprinkler operation.

The key idea is that a pressure gauge on a sprinkler riser shows the water pressure in the system, letting you confirm the supply is adequate and the system is charged properly. Reading the gauge helps you verify that there is enough pressure for the sprinkler heads to operate as designed and to spot issues like a partially closed valve, a leak, or pump/supply problems that would drop pressure. It’s not meant to measure temperature, and the gauge itself doesn’t trigger alarms or drain water—the alarms are connected to other devices that respond to pressure or flow changes, and drainage is handled by separate drain valves. In short, the gauge provides a real-time check of the system’s pressure to ensure reliable sprinkler operation.