What is the flow rate for a 2 ½" preconnect with a length of 200'?

The flow rate for a 2 ½" preconnect hose is determined not only by the size of the hose but also by the length of the hose and the pressure required to achieve a certain flow. For a 2 ½" hose, a standard calculation indicates that a pressure of around 70 psi is typically needed to deliver an adequate flow rate over a length of 200 feet.

This pressure takes into account the friction loss along the length of the hose. The 70 psi ensures that the nozzle can effectively deliver the required gallons per minute (GPM), which is crucial for effective firefighting operations. Hence, the selection of 70 psi directly correlates with the operational standards for a preconnect of this size and length, ensuring that firefighters can maintain proper flow while managing the pressures effectively.