Which device is used to measure system pressure?

Which device is used to measure system pressure?

• A. Pressure gauge
• B. Flow meter
• C. Thermometer
• D. Pressure relief valve

Answer: (A)

Measuring system pressure relies on a device that provides a direct readout of how much pressure exists in the sprinkler piping. That’s the pressure gauge. It attaches to the system at a test or riser connection and shows the pressure in psi (or kPa). This reading helps confirm the hydraulic design is met: the pump and supply must deliver enough pressure so water reaches the most hydraulically remote sprinkler with adequate flow when a head operates. The other devices don’t indicate pressure: a flow meter shows how much water is moving, a thermometer measures temperature, and a pressure relief valve releases excess pressure rather than providing a pressure readout.

Measuring system pressure relies on a device that provides a direct readout of how much pressure exists in the sprinkler piping. That’s the pressure gauge. It attaches to the system at a test or riser connection and shows the pressure in psi (or kPa). This reading helps confirm the hydraulic design is met: the pump and supply must deliver enough pressure so water reaches the most hydraulically remote sprinkler with adequate flow when a head operates. The other devices don’t indicate pressure: a flow meter shows how much water is moving, a thermometer measures temperature, and a pressure relief valve releases excess pressure rather than providing a pressure readout.