How much water can a 5-inch supply line typically deliver?

A 5-inch supply line is designed to efficiently deliver large volumes of water, making it suitable for fire operations that require significant water flow. Typically, a 5-inch supply line can deliver around 1500 gallons per minute (gpm) under optimal conditions. This flow rate is crucial for effective firefighting, especially in large-scale incidents where rapid and substantial water supply is necessary to combat the fire and protect lives and property.

The flow capability of a 5-inch line is influenced by several factors, including the pressure at which the water is supplied, the length of the hose, and any additional fittings or appliances attached. However, within standard operational parameters, the commonly accepted delivery rate for a 5-inch supply line remains around 1500 gpm. This makes it a staple in fire service operations for providing a robust water supply to multiple attack lines or fire apparatuses simultaneously.