What is the minimum recommended pressure from a fire hydrant?

The minimum recommended pressure from a fire hydrant is typically considered to be 20 psi. This pressure is crucial because it ensures that firefighters have sufficient water flow and pressure to effectively suppress fires. A pressure of 20 psi allows for adequate water delivery to the nozzle, which is essential for creating the necessary reach and impact of water streams on a fire.

In fire suppression operations, maintaining a certain level of pressure ensures that the firefighting equipment functions properly, and that the water can reach the desired height and distance. Pressures lower than this threshold may compromise the effectiveness of firefighting efforts, making it difficult to control and extinguish a fire effectively.