What is the ideal GPM and PSI for a 1 3/4" preconnect?

The ideal GPM (gallons per minute) and PSI (pound per square inch) for a 1 3/4" preconnect is vital for ensuring effective firefighting operations. A preconnect is typically used for quick deployment during fire incidents, and the choice of GPM and PSI directly affects the reach and effectiveness of the water stream.

Choosing 130 GPM at 150 PSI is appropriate because it strikes a balance between delivering a substantial amount of water, which is critical for suppressing fires, and maintaining sufficient pressure to ensure the nozzle operates efficiently. This flow rate allows for effective cooling of hot gases and surfaces, helping to control the fire while also keeping the firefighting personnel safe.

Moreover, a flow of 130 GPM at 150 PSI helps maintain a strong, effective stream that can reach fires typically found in structures, providing enough force to penetrate various materials and conditions encountered on the fire ground.

In comparison, the other options either provide insufficient flow rates or excessively high pressures that may lead to difficulties in handling the hose or could risk damaging equipment. Therefore, 130 GPM at 150 PSI is the most effective combination for practical and efficient firefighting operations with a 1 3/4" preconnect