At what pressure will each normal sprinkler head flowing deliver how many gallons per minute?

The correct answer relates to the common performance metrics of typical sprinkler heads, which are often designed to flow approximately 40 gallons per minute (gpm) at a pressure of 20 pounds per square inch (psi). This standard is established within the fire protection engineering community as a benchmark for calculating water supply needs during firefighting operations. Understanding this flow rate is crucial for fire officers and their teams, as it informs their strategies for suppressing fires and designing effective fire protection systems.

Sprinkler systems are engineered to activate in a defined range of pressure, so the design flow is generally calculated at a specific discharge pressure, which in this case is commonly accepted to be around the typical operating pressures for such systems. Recognizing that flow rates are critical for effective fire control emphasizes the need for fire officers to be knowledgeable about how these systems operate under various conditions, ensuring they can effectively manage the deployment of water resources during an emergency.