Most fire hydrants are universally red; however, even this ubiquitous coating communicates valuable information to firefighters and water distribution personnel. Color coding depends on where each color is located on the hydrant, as the hydrant bodies and bonnets and caps each relay a separate set of information.
Why are fire hydrants GREY?
In some places, the tops of fire hydrants are painted different colours to let firefighters know how many gallons per minute, or GPM, a hydrant is able to deliver. The higher the GPM, the better the hydrant will be at fighting bigger fires. Blue usually marks the highest GPM, and red the lowest!
Why do they paint fire hydrants white?
Painting the Body
White to show the hydrant is a Public system hydrant. Yellow for a Private hydrant connected to a public water system. Red for a special operations hydrant, meaning it’s for special purposes and situations only. Violet to suggest that the water is non-potable.
How much pressure is in a fire hydrant?
Fire hydrants are flow-tested at a residual pressure of 20 psi; therefore, firefighters should understand the typical flow rates of fire hydrants at that pressure.
What does a yellow fire truck mean?
(1990). Lime-yellow color as related to reduction of serious fire apparatus accidents: The case for visibility in emergency vehicle accident avoidance.