A standardized system categorizes hearth hydrants by their obtainable water circulation price, indicated by the colour of the hydrant’s bonnet and, often, the physique. This classification permits firefighters to shortly assess a hydrant’s capability, essential for efficient hearth suppression. As an example, a lightweight blue bonnet usually signifies a circulation price of 1500 gallons per minute or better.
Fast identification of water availability is paramount in emergency conditions. This method reduces response instances by eliminating the necessity for firefighters to check every hydrant individually. Traditionally, inconsistencies in hydrant design and signage hampered firefighting efforts. Standardized color-coding supplies a common visible language, bettering interoperability between totally different hearth departments and jurisdictions.