What is the typical flow rate for a 2½" (64-mm) handline?

The typical flow rate for a 2½" handline is recognized as 250 gallons per minute (GPM). This flow rate is based on the design and capabilities of the hose; the larger diameter allows for increased volume and pressure compared to smaller handlines.

When using a 2½" handline, firefighters typically need a significant flow of water to effectively combat fires, especially in situations involving larger structures or more intense fires. The standard of 250 GPM for a 2½" line ensures that there is sufficient water supply to manage the heat and spread of fire effectively. This flow rate strikes a balance between the demands of fire suppression and the ability to handle the hose effectively.

Understanding this standard flow rate is crucial for efficient firefighting operations, as it helps firefighters to calculate the necessary water supply needs and adjust their attack strategies accordingly. In this context, it's important to recognize how the flow rate impacts both the effectiveness of the fire suppression efforts and the safety of firefighters on the scene.